agent.halowerk.com

Runs your simple-product checkout cases against the pinned OpenCart source in a private, non-root database that exists only for the length of the request. For each case it reports the totals the native code actually produces, which expectations were missed, and where a cart path diverged, rather than a single pass or fail.

DataLiveeip155:8453Exactvia cdp
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$22.11
Verified settled volume
A floor: summed over 5,000 of 6,901 verified settlements.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-23 08:29Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "docs": "https://agent.halowerk.com/llms.txt",
  "name": "oss_opencart_checkout_rule_regression_review",
  "error": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "asset": "USDC",
        "version": "2",
        "eip712Domain": {
          "name": "USD Coin",
          "chainId": 8453,
          "version": "2",
          "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        },
        "network_name": "Base Mainnet",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "pricing": "https://agent.halowerk.com/pricing",
  "resource": {
    "url": "https://agent.halowerk.com/v1/oss-opencart-checkout-rule-regression-review",
    "mimeType": "application/json",
    "description": "Runs your simple-product checkout cases against the pinned OpenCart source in a private, non-root database that exists only for the length of the request. For each case it reports the totals the native code actually produces, which expectations were missed, and where a cart path diverged, rather than a single pass or fail."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "cases": [
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "7.0000",
                  "enabled": false,
                  "product_ids": [],
                  "free_shipping": false,
                  "requires_login": false,
                  "total_use_limit": 0,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 0,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "baseline",
                "expected": {
                  "total": "44.40000000",
                  "coupon_eligible": false,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 1
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "7.0000",
                  "enabled": true,
                  "product_ids": [],
                  "free_shipping": false,
                  "requires_login": false,
                  "total_use_limit": 0,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 1,
                  "customer_use_limit": 1,
                  "prior_customer_uses": 1
                },
                "case_id": "customer_use_rejected",
                "expected": {
                  "total": "44.40000000",
                  "coupon_eligible": false,
                  "cart_paths_equivalent": false
                },
                "customer_id": 7,
                "customer_group_id": 1
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  },
                  {
                    "quantity": 1,
                    "product_id": 103
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "7.0000",
                  "enabled": false,
                  "product_ids": [],
                  "free_shipping": false,
                  "requires_login": false,
                  "total_use_limit": 0,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 0,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "disabled_product_removed",
                "expected": {
                  "total": "44.40000000",
                  "coupon_eligible": false,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 1
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "100.0000",
                  "enabled": true,
                  "product_ids": [
                    102
                  ],
                  "free_shipping": false,
                  "requires_login": false,
                  "total_use_limit": 0,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 0,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "eligible_product_cap",
                "expected": {
                  "total": "27.90000000",
                  "coupon_eligible": true,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 1
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "7.0000",
                  "enabled": true,
                  "product_ids": [],
                  "free_shipping": true,
                  "requires_login": false,
                  "total_use_limit": 0,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 0,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "fixed_free_shipping",
                "expected": {
                  "total": "32.30000000",
                  "coupon_eligible": true,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 1
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "7.0000",
                  "enabled": true,
                  "product_ids": [],
                  "free_shipping": false,
                  "requires_login": false,
                  "total_use_limit": 1,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 1,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "global_use_rejected",
                "expected": {
                  "total": "44.40000000",
                  "coupon_eligible": false,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 1
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "7.0000",
                  "enabled": false,
                  "product_ids": [],
                  "free_shipping": false,
                  "requires_login": false,
                  "total_use_limit": 0,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 0,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "group_discount",
                "expected": {
                  "total": "42.20000000",
                  "coupon_eligible": false,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 2
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "7.0000",
                  "enabled": true,
                  "product_ids": [],
                  "free_shipping": false,
                  "requires_login": true,
                  "total_use_limit": 0,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 0,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "logged_coupon_rejected",
                "expected": {
                  "total": "44.40000000",
                  "coupon_eligible": false,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 1
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "F",
                  "value": "7.0000",
                  "enabled": true,
                  "product_ids": [],
                  "free_shipping": false,
                  "requires_login": false,
                  "total_use_limit": 0,
                  "minimum_subtotal": "40.0000",
                  "prior_total_uses": 0,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "minimum_rejected",
                "expected": {
                  "total": "44.40000000",
                  "coupon_eligible": false,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 1
              },
              {
                "lines": [
                  {
                    "quantity": 2,
                    "product_id": 101
                  },
                  {
                    "quantity": 3,
                    "product_id": 102
                  }
                ],
                "coupon": {
                  "type": "P",
                  "value": "20.0000",
                  "enabled": true,
                  "product_ids": [],
                  "free_shipping": false,
                  "requires_login": false,
                  "total_use_limit": 0,
                  "minimum_subtotal": "0.0000",
                  "prior_total_uses": 0,
                  "customer_use_limit": 0,
                  "prior_customer_uses": 0
                },
                "case_id": "percentage",
                "expected": {
                  "total": "36.70000000",
                  "coupon_eligible": true,
                  "cart_paths_equivalent": false
                },
                "customer_id": 0,
                "customer_group_id": 1
              }
            ],
            "products": [
              {
                "price": "10.0000",
                "stock": 100,
                "enabled": true,
                "shipping": true,
                "product_id": 101,
                "tax_class_id": 1,
                "minimum_quantity": 1
              },
              {
                "price": "5.0000",
                "stock": 100,
                "enabled": true,
                "shipping": true,
                "product_id": 102,
                "tax_class_id": 1,
                "minimum_quantity": 1
              },
              {
                "price": "100.0000",
                "stock": 100,
                "enabled": false,
                "shipping": true,
                "product_id": 103,
                "tax_class_id": 1,
                "minimum_quantity": 1
              }
            ],
            "discounts": [
              {
                "type": "P",
                "value": "10.0000",
                "priority": 1,
                "quantity": 2,
                "product_id": 101,
                "customer_group_id": 2
              }
            ],
            "tax_classes": [
              {
                "fixed_amount": "0.5000",
                "tax_class_id": 1,
                "percentage_rate": "10.0000"
              }
            ],
            "flat_shipping": {
              "cost": "4.0000",
              "tax_class_id": 1
            }
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "products",
                  "discounts",
                  "tax_classes",
                  "flat_shipping",
                  "cases"
                ],
                "properties": {
                  "cases": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "case_id",
                        "customer_id",
                        "customer_group_id",
                        "lines",
                        "coupon",
                        "expected"
                      ],
                      "properties": {
                        "lines": {
                          "type": "array",
                          "items": {
                            "type": "object",
                            "required": [
                              "product_id",
                              "quantity"
                            ],
                            "properties": {
                              "quantity": {
                                "type": "integer",
                                "maximum": 100,
                                "minimum": 1
                              },
                              "product_id": {
                                "type": "integer",
                                "maximum": 2147483647,
                                "minimum": 1
                              }
                            },
                            "additionalProperties": false
                          },
                          "maxItems": 16,
                          "minItems": 1
                        },
                        "coupon": {
                          "type": "object",
                          "required": [
                            "enabled",
                            "type",
                            "value",
                            "product_ids",
                            "free_shipping",
                            "requires_login",
                            "minimum_subtotal",
                            "total_use_limit",
                            "customer_use_limit",
                            "prior_total_uses",
                            "prior_customer_uses"
                          ],
                          "properties": {
                            "type": {
                              "enum": [
                                "F",
                                "P"
                              ]
                            },
                            "value": {
                              "type": "string",
                              "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                              "maxLength": 10
                            },
                            "enabled": {
                              "type": "boolean"
                            },
                            "product_ids": {
                              "type": "array",
                              "items": {
                                "type": "integer",
                                "maximum": 2147483647,
                                "minimum": 1
                              },
                              "maxItems": 16,
                              "minItems": 0
                            },
                            "free_shipping": {
                              "type": "boolean"
                            },
                            "requires_login": {
                              "type": "boolean"
                            },
                            "total_use_limit": {
                              "type": "integer",
                              "maximum": 10000,
                              "minimum": 0
                            },
                            "minimum_subtotal": {
                              "type": "string",
                              "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                              "maxLength": 10
                            },
                            "prior_total_uses": {
                              "type": "integer",
                              "maximum": 64,
                              "minimum": 0
                            },
                            "customer_use_limit": {
                              "type": "integer",
                              "maximum": 10000,
                              "minimum": 0
                            },
                            "prior_customer_uses": {
                              "type": "integer",
                              "maximum": 64,
                              "minimum": 0
                            }
                          },
                          "additionalProperties": false
                        },
                        "case_id": {
                          "type": "string",
                          "pattern": "^[a-zA-Z0-9_-]{1,32}$",
                          "maxLength": 32
                        },
                        "expected": {
                          "type": "object",
                          "required": [
                            "total",
                            "coupon_eligible",
                            "cart_paths_equivalent"
                          ],
                          "properties": {
                            "total": {
                              "type": "string",
                              "pattern": "^(?:0|[1-9][0-9]{0,8})(?:\\.[0-9]{1,8})?$",
                              "maxLength": 18
                            },
                            "coupon_eligible": {
                              "type": "boolean"
                            },
                            "cart_paths_equivalent": {
                              "type": "boolean"
                            }
                          },
                          "additionalProperties": false
                        },
                        "customer_id": {
                          "type": "integer",
                          "maximum": 2147483647,
                          "minimum": 0
                        },
                        "customer_group_id": {
                          "type": "integer",
                          "maximum": 16,
                          "minimum": 1
                        }
                      },
                      "additionalProperties": false
                    },
                    "maxItems": 16,
                    "minItems": 1
                  },
                  "products": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "product_id",
                        "price",
                        "stock",
                        "minimum_quantity",
                        "enabled",
                        "shipping",
                        "tax_class_id"
                      ],
                      "properties": {
                        "price": {
                          "type": "string",
                          "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                          "maxLength": 10
                        },
                        "stock": {
                          "type": "integer",
                          "maximum": 100000,
                          "minimum": 0
                        },
                        "enabled": {
                          "type": "boolean"
                        },
                        "shipping": {
                          "type": "boolean"
                        },
                        "product_id": {
                          "type": "integer",
                          "maximum": 2147483647,
                          "minimum": 1
                        },
                        "tax_class_id": {
                          "type": "integer",
                          "maximum": 8,
                          "minimum": 0
                        },
                        "minimum_quantity": {
                          "type": "integer",
                          "maximum": 100,
                          "minimum": 1
                        }
                      },
                      "additionalProperties": false
                    },
                    "maxItems": 16,
                    "minItems": 1
                  },
                  "discounts": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "product_id",
                        "customer_group_id",
                        "quantity",
                        "priority",
                        "type",
                        "value"
                      ],
                      "properties": {
                        "type": {
                          "enum": [
                            "F",
                            "P",
                            "S"
                          ]
                        },
                        "value": {
                          "type": "string",
                          "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                          "maxLength": 10
                        },
                        "priority": {
                          "type": "integer",
                          "maximum": 100,
                          "minimum": 0
                        },
                        "quantity": {
                          "type": "integer",
                          "maximum": 100,
                          "minimum": 1
                        },
                        "product_id": {
                          "type": "integer",
                          "maximum": 2147483647,
                          "minimum": 1
                        },
                        "customer_group_id": {
                          "type": "integer",
                          "maximum": 16,
                          "minimum": 1
                        }
                      },
                      "additionalProperties": false
                    },
                    "maxItems": 64,
                    "minItems": 0
                  },
                  "tax_classes": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "tax_class_id",
                        "percentage_rate",
                        "fixed_amount"
                      ],
                      "properties": {
                        "fixed_amount": {
                          "type": "string",
                          "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                          "maxLength": 10
                        },
                        "tax_class_id": {
                          "type": "integer",
                          "maximum": 8,
                          "minimum": 1
                        },
                        "percentage_rate": {
                          "type": "string",
                          "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                          "maxLength": 10
                        }
                      },
                      "additionalProperties": false
                    },
                    "maxItems": 8,
                    "minItems": 0
                  },
                  "flat_shipping": {
                    "type": "object",
                    "required": [
                      "cost",
                      "tax_class_id"
                    ],
                    "properties": {
                      "cost": {
                        "type": "string",
                        "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                        "maxLength": 10
                      },
                      "tax_class_id": {
                        "type": "integer",
                        "maximum": 8,
                        "minimum": 0
                      }
                    },
                    "additionalProperties": false
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "price_usdc": "0.005",
  "description": "Runs your simple-product checkout cases against the pinned OpenCart source in a private, non-root database that exists only for the length of the request. For each case it reports the totals the native code actually produces, which expectations were missed, and where a cart path diverged, rather than a single pass or fail. The point is to see a pricing regression before customers do: a coupon that stacks where it should not, a shipping rule that survives a tax-class change, a discount tier that applies one order too early. Prior coupon uses and tax classes are seeded exactly as supplied. Nothing is written back and no order is placed; the database and workspace are removed on every terminal path, whether the review succeeds or fails.",
  "inputSchema": {
    "type": "object",
    "required": [
      "products",
      "discounts",
      "tax_classes",
      "flat_shipping",
      "cases"
    ],
    "properties": {
      "cases": {
        "type": "array",
        "items": {
          "type": "object",
          "required": [
            "case_id",
            "customer_id",
            "customer_group_id",
            "lines",
            "coupon",
            "expected"
          ],
          "properties": {
            "lines": {
              "type": "array",
              "items": {
                "type": "object",
                "required": [
                  "product_id",
                  "quantity"
                ],
                "properties": {
                  "quantity": {
                    "type": "integer",
                    "maximum": 100,
                    "minimum": 1
                  },
                  "product_id": {
                    "type": "integer",
                    "maximum": 2147483647,
                    "minimum": 1
                  }
                },
                "additionalProperties": false
              },
              "maxItems": 16,
              "minItems": 1
            },
            "coupon": {
              "type": "object",
              "required": [
                "enabled",
                "type",
                "value",
                "product_ids",
                "free_shipping",
                "requires_login",
                "minimum_subtotal",
                "total_use_limit",
                "customer_use_limit",
                "prior_total_uses",
                "prior_customer_uses"
              ],
              "properties": {
                "type": {
                  "enum": [
                    "F",
                    "P"
                  ]
                },
                "value": {
                  "type": "string",
                  "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                  "maxLength": 10
                },
                "enabled": {
                  "type": "boolean"
                },
                "product_ids": {
                  "type": "array",
                  "items": {
                    "type": "integer",
                    "maximum": 2147483647,
                    "minimum": 1
                  },
                  "maxItems": 16,
                  "minItems": 0
                },
                "free_shipping": {
                  "type": "boolean"
                },
                "requires_login": {
                  "type": "boolean"
                },
                "total_use_limit": {
                  "type": "integer",
                  "maximum": 10000,
                  "minimum": 0
                },
                "minimum_subtotal": {
                  "type": "string",
                  "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                  "maxLength": 10
                },
                "prior_total_uses": {
                  "type": "integer",
                  "maximum": 64,
                  "minimum": 0
                },
                "customer_use_limit": {
                  "type": "integer",
                  "maximum": 10000,
                  "minimum": 0
                },
                "prior_customer_uses": {
                  "type": "integer",
                  "maximum": 64,
                  "minimum": 0
                }
              },
              "additionalProperties": false
            },
            "case_id": {
              "type": "string",
              "pattern": "^[a-zA-Z0-9_-]{1,32}$",
              "maxLength": 32
            },
            "expected": {
              "type": "object",
              "required": [
                "total",
                "coupon_eligible",
                "cart_paths_equivalent"
              ],
              "properties": {
                "total": {
                  "type": "string",
                  "pattern": "^(?:0|[1-9][0-9]{0,8})(?:\\.[0-9]{1,8})?$",
                  "maxLength": 18
                },
                "coupon_eligible": {
                  "type": "boolean"
                },
                "cart_paths_equivalent": {
                  "type": "boolean"
                }
              },
              "additionalProperties": false
            },
            "customer_id": {
              "type": "integer",
              "maximum": 2147483647,
              "minimum": 0
            },
            "customer_group_id": {
              "type": "integer",
              "maximum": 16,
              "minimum": 1
            }
          },
          "additionalProperties": false
        },
        "maxItems": 16,
        "minItems": 1
      },
      "products": {
        "type": "array",
        "items": {
          "type": "object",
          "required": [
            "product_id",
            "price",
            "stock",
            "minimum_quantity",
            "enabled",
            "shipping",
            "tax_class_id"
          ],
          "properties": {
            "price": {
              "type": "string",
              "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
              "maxLength": 10
            },
            "stock": {
              "type": "integer",
              "maximum": 100000,
              "minimum": 0
            },
            "enabled": {
              "type": "boolean"
            },
            "shipping": {
              "type": "boolean"
            },
            "product_id": {
              "type": "integer",
              "maximum": 2147483647,
              "minimum": 1
            },
            "tax_class_id": {
              "type": "integer",
              "maximum": 8,
              "minimum": 0
            },
            "minimum_quantity": {
              "type": "integer",
              "maximum": 100,
              "minimum": 1
            }
          },
          "additionalProperties": false
        },
        "maxItems": 16,
        "minItems": 1
      },
      "discounts": {
        "type": "array",
        "items": {
          "type": "object",
          "required": [
            "product_id",
            "customer_group_id",
            "quantity",
            "priority",
            "type",
            "value"
          ],
          "properties": {
            "type": {
              "enum": [
                "F",
                "P",
                "S"
              ]
            },
            "value": {
              "type": "string",
              "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
              "maxLength": 10
            },
            "priority": {
              "type": "integer",
              "maximum": 100,
              "minimum": 0
            },
            "quantity": {
              "type": "integer",
              "maximum": 100,
              "minimum": 1
            },
            "product_id": {
              "type": "integer",
              "maximum": 2147483647,
              "minimum": 1
            },
            "customer_group_id": {
              "type": "integer",
              "maximum": 16,
              "minimum": 1
            }
          },
          "additionalProperties": false
        },
        "maxItems": 64,
        "minItems": 0
      },
      "tax_classes": {
        "type": "array",
        "items": {
          "type": "object",
          "required": [
            "tax_class_id",
            "percentage_rate",
            "fixed_amount"
          ],
          "properties": {
            "fixed_amount": {
              "type": "string",
              "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
              "maxLength": 10
            },
            "tax_class_id": {
              "type": "integer",
              "maximum": 8,
              "minimum": 1
            },
            "percentage_rate": {
              "type": "string",
              "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
              "maxLength": 10
            }
          },
          "additionalProperties": false
        },
        "maxItems": 8,
        "minItems": 0
      },
      "flat_shipping": {
        "type": "object",
        "required": [
          "cost",
          "tax_class_id"
        ],
        "properties": {
          "cost": {
            "type": "string",
            "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
            "maxLength": 10
          },
          "tax_class_id": {
            "type": "integer",
            "maximum": 8,
            "minimum": 0
          }
        },
        "additionalProperties": false
      }
    },
    "additionalProperties": false
  },
  "price_model": "per_call",
  "x402Version": 2,
  "instructions": "Sign the accepted terms with an x402 client and repeat the request with the payment header.",
  "payment_header": "PAYMENT-SIGNATURE",
  "capability_request": {
    "url": "https://bedarf.halowerk.com/capabilities/request",
    "cost": "free",
    "method": "POST",
    "description": "Missing a capability, or does the scope not fit? Report the need here - no payment required. Similar reports are bundled; the response returns an id you can check back on.",
    "body_example": {
      "max_price": 0.01,
      "description": "what exactly is needed",
      "requested_capability": "short label"
    }
  }
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "asset": "USDC",
      "version": "2",
      "eip712Domain": {
        "name": "USD Coin",
        "chainId": 8453,
        "version": "2",
        "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      },
      "network_name": "Base Mainnet",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "cases": [
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "F",
                "value": "7.0000",
                "enabled": false,
                "product_ids": [],
                "free_shipping": false,
                "requires_login": false,
                "total_use_limit": 0,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 0,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "baseline",
              "expected": {
                "total": "44.40000000",
                "coupon_eligible": false,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 1
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "F",
                "value": "7.0000",
                "enabled": true,
                "product_ids": [],
                "free_shipping": false,
                "requires_login": false,
                "total_use_limit": 0,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 1,
                "customer_use_limit": 1,
                "prior_customer_uses": 1
              },
              "case_id": "customer_use_rejected",
              "expected": {
                "total": "44.40000000",
                "coupon_eligible": false,
                "cart_paths_equivalent": false
              },
              "customer_id": 7,
              "customer_group_id": 1
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                },
                {
                  "quantity": 1,
                  "product_id": 103
                }
              ],
              "coupon": {
                "type": "F",
                "value": "7.0000",
                "enabled": false,
                "product_ids": [],
                "free_shipping": false,
                "requires_login": false,
                "total_use_limit": 0,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 0,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "disabled_product_removed",
              "expected": {
                "total": "44.40000000",
                "coupon_eligible": false,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 1
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "F",
                "value": "100.0000",
                "enabled": true,
                "product_ids": [
                  102
                ],
                "free_shipping": false,
                "requires_login": false,
                "total_use_limit": 0,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 0,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "eligible_product_cap",
              "expected": {
                "total": "27.90000000",
                "coupon_eligible": true,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 1
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "F",
                "value": "7.0000",
                "enabled": true,
                "product_ids": [],
                "free_shipping": true,
                "requires_login": false,
                "total_use_limit": 0,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 0,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "fixed_free_shipping",
              "expected": {
                "total": "32.30000000",
                "coupon_eligible": true,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 1
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "F",
                "value": "7.0000",
                "enabled": true,
                "product_ids": [],
                "free_shipping": false,
                "requires_login": false,
                "total_use_limit": 1,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 1,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "global_use_rejected",
              "expected": {
                "total": "44.40000000",
                "coupon_eligible": false,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 1
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "F",
                "value": "7.0000",
                "enabled": false,
                "product_ids": [],
                "free_shipping": false,
                "requires_login": false,
                "total_use_limit": 0,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 0,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "group_discount",
              "expected": {
                "total": "42.20000000",
                "coupon_eligible": false,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 2
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "F",
                "value": "7.0000",
                "enabled": true,
                "product_ids": [],
                "free_shipping": false,
                "requires_login": true,
                "total_use_limit": 0,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 0,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "logged_coupon_rejected",
              "expected": {
                "total": "44.40000000",
                "coupon_eligible": false,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 1
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "F",
                "value": "7.0000",
                "enabled": true,
                "product_ids": [],
                "free_shipping": false,
                "requires_login": false,
                "total_use_limit": 0,
                "minimum_subtotal": "40.0000",
                "prior_total_uses": 0,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "minimum_rejected",
              "expected": {
                "total": "44.40000000",
                "coupon_eligible": false,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 1
            },
            {
              "lines": [
                {
                  "quantity": 2,
                  "product_id": 101
                },
                {
                  "quantity": 3,
                  "product_id": 102
                }
              ],
              "coupon": {
                "type": "P",
                "value": "20.0000",
                "enabled": true,
                "product_ids": [],
                "free_shipping": false,
                "requires_login": false,
                "total_use_limit": 0,
                "minimum_subtotal": "0.0000",
                "prior_total_uses": 0,
                "customer_use_limit": 0,
                "prior_customer_uses": 0
              },
              "case_id": "percentage",
              "expected": {
                "total": "36.70000000",
                "coupon_eligible": true,
                "cart_paths_equivalent": false
              },
              "customer_id": 0,
              "customer_group_id": 1
            }
          ],
          "products": [
            {
              "price": "10.0000",
              "stock": 100,
              "enabled": true,
              "shipping": true,
              "product_id": 101,
              "tax_class_id": 1,
              "minimum_quantity": 1
            },
            {
              "price": "5.0000",
              "stock": 100,
              "enabled": true,
              "shipping": true,
              "product_id": 102,
              "tax_class_id": 1,
              "minimum_quantity": 1
            },
            {
              "price": "100.0000",
              "stock": 100,
              "enabled": false,
              "shipping": true,
              "product_id": 103,
              "tax_class_id": 1,
              "minimum_quantity": 1
            }
          ],
          "discounts": [
            {
              "type": "P",
              "value": "10.0000",
              "priority": 1,
              "quantity": 2,
              "product_id": 101,
              "customer_group_id": 2
            }
          ],
          "tax_classes": [
            {
              "fixed_amount": "0.5000",
              "tax_class_id": 1,
              "percentage_rate": "10.0000"
            }
          ],
          "flat_shipping": {
            "cost": "4.0000",
            "tax_class_id": 1
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "products",
                "discounts",
                "tax_classes",
                "flat_shipping",
                "cases"
              ],
              "properties": {
                "cases": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "case_id",
                      "customer_id",
                      "customer_group_id",
                      "lines",
                      "coupon",
                      "expected"
                    ],
                    "properties": {
                      "lines": {
                        "type": "array",
                        "items": {
                          "type": "object",
                          "required": [
                            "product_id",
                            "quantity"
                          ],
                          "properties": {
                            "quantity": {
                              "type": "integer",
                              "maximum": 100,
                              "minimum": 1
                            },
                            "product_id": {
                              "type": "integer",
                              "maximum": 2147483647,
                              "minimum": 1
                            }
                          },
                          "additionalProperties": false
                        },
                        "maxItems": 16,
                        "minItems": 1
                      },
                      "coupon": {
                        "type": "object",
                        "required": [
                          "enabled",
                          "type",
                          "value",
                          "product_ids",
                          "free_shipping",
                          "requires_login",
                          "minimum_subtotal",
                          "total_use_limit",
                          "customer_use_limit",
                          "prior_total_uses",
                          "prior_customer_uses"
                        ],
                        "properties": {
                          "type": {
                            "enum": [
                              "F",
                              "P"
                            ]
                          },
                          "value": {
                            "type": "string",
                            "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                            "maxLength": 10
                          },
                          "enabled": {
                            "type": "boolean"
                          },
                          "product_ids": {
                            "type": "array",
                            "items": {
                              "type": "integer",
                              "maximum": 2147483647,
                              "minimum": 1
                            },
                            "maxItems": 16,
                            "minItems": 0
                          },
                          "free_shipping": {
                            "type": "boolean"
                          },
                          "requires_login": {
                            "type": "boolean"
                          },
                          "total_use_limit": {
                            "type": "integer",
                            "maximum": 10000,
                            "minimum": 0
                          },
                          "minimum_subtotal": {
                            "type": "string",
                            "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                            "maxLength": 10
                          },
                          "prior_total_uses": {
                            "type": "integer",
                            "maximum": 64,
                            "minimum": 0
                          },
                          "customer_use_limit": {
                            "type": "integer",
                            "maximum": 10000,
                            "minimum": 0
                          },
                          "prior_customer_uses": {
                            "type": "integer",
                            "maximum": 64,
                            "minimum": 0
                          }
                        },
                        "additionalProperties": false
                      },
                      "case_id": {
                        "type": "string",
                        "pattern": "^[a-zA-Z0-9_-]{1,32}$",
                        "maxLength": 32
                      },
                      "expected": {
                        "type": "object",
                        "required": [
                          "total",
                          "coupon_eligible",
                          "cart_paths_equivalent"
                        ],
                        "properties": {
                          "total": {
                            "type": "string",
                            "pattern": "^(?:0|[1-9][0-9]{0,8})(?:\\.[0-9]{1,8})?$",
                            "maxLength": 18
                          },
                          "coupon_eligible": {
                            "type": "boolean"
                          },
                          "cart_paths_equivalent": {
                            "type": "boolean"
                          }
                        },
                        "additionalProperties": false
                      },
                      "customer_id": {
                        "type": "integer",
                        "maximum": 2147483647,
                        "minimum": 0
                      },
                      "customer_group_id": {
                        "type": "integer",
                        "maximum": 16,
                        "minimum": 1
                      }
                    },
                    "additionalProperties": false
                  },
                  "maxItems": 16,
                  "minItems": 1
                },
                "products": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "product_id",
                      "price",
                      "stock",
                      "minimum_quantity",
                      "enabled",
                      "shipping",
                      "tax_class_id"
                    ],
                    "properties": {
                      "price": {
                        "type": "string",
                        "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                        "maxLength": 10
                      },
                      "stock": {
                        "type": "integer",
                        "maximum": 100000,
                        "minimum": 0
                      },
                      "enabled": {
                        "type": "boolean"
                      },
                      "shipping": {
                        "type": "boolean"
                      },
                      "product_id": {
                        "type": "integer",
                        "maximum": 2147483647,
                        "minimum": 1
                      },
                      "tax_class_id": {
                        "type": "integer",
                        "maximum": 8,
                        "minimum": 0
                      },
                      "minimum_quantity": {
                        "type": "integer",
                        "maximum": 100,
                        "minimum": 1
                      }
                    },
                    "additionalProperties": false
                  },
                  "maxItems": 16,
                  "minItems": 1
                },
                "discounts": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "product_id",
                      "customer_group_id",
                      "quantity",
                      "priority",
                      "type",
                      "value"
                    ],
                    "properties": {
                      "type": {
                        "enum": [
                          "F",
                          "P",
                          "S"
                        ]
                      },
                      "value": {
                        "type": "string",
                        "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                        "maxLength": 10
                      },
                      "priority": {
                        "type": "integer",
                        "maximum": 100,
                        "minimum": 0
                      },
                      "quantity": {
                        "type": "integer",
                        "maximum": 100,
                        "minimum": 1
                      },
                      "product_id": {
                        "type": "integer",
                        "maximum": 2147483647,
                        "minimum": 1
                      },
                      "customer_group_id": {
                        "type": "integer",
                        "maximum": 16,
                        "minimum": 1
                      }
                    },
                    "additionalProperties": false
                  },
                  "maxItems": 64,
                  "minItems": 0
                },
                "tax_classes": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "tax_class_id",
                      "percentage_rate",
                      "fixed_amount"
                    ],
                    "properties": {
                      "fixed_amount": {
                        "type": "string",
                        "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                        "maxLength": 10
                      },
                      "tax_class_id": {
                        "type": "integer",
                        "maximum": 8,
                        "minimum": 1
                      },
                      "percentage_rate": {
                        "type": "string",
                        "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                        "maxLength": 10
                      }
                    },
                    "additionalProperties": false
                  },
                  "maxItems": 8,
                  "minItems": 0
                },
                "flat_shipping": {
                  "type": "object",
                  "required": [
                    "cost",
                    "tax_class_id"
                  ],
                  "properties": {
                    "cost": {
                      "type": "string",
                      "pattern": "^(?:0|[1-9][0-9]{0,4})(?:\\.[0-9]{1,4})?$",
                      "maxLength": 10
                    },
                    "tax_class_id": {
                      "type": "integer",
                      "maximum": 8,
                      "minimum": 0
                    }
                  },
                  "additionalProperties": false
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-23 08:29Z
Last indexed by Roundhouse
2026-10-26 16:50Z
Last enriched (probe, favicon, geo)
2026-10-23 10:16Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service agent.halowerk.com and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=agent.halowerk.com'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://agent.halowerk.com/v1/oss-opencart-checkout-rule-regression-review, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.