HALOWERK x402werk

Name: HALOWERK x402werk
Price: 0.002 USDC
Availability: InStock

Fetches the 402 challenge of a foreign endpoint without paying anything — no payment header, no signature, no settlement — or parses a challenge you already hold. Returns x402_version, every accepts entry with scheme, network, resolved network name and chain id, asset, symbol, decimals and the amount both in raw units and in human form, plus the resource block and any expiry. amount_human is computed with the decimals of that token, resolved from a known-asset table or read from the chain; where decimals cannot be established it stays null and is listed in unavailable_fields rather than assuming six. parse_warnings names concrete gaps such as a missing description or missing inputSchema, a non-CAIP-2 network, a bridged instead of canonical asset, or an amount sent as a JSON number. It does not judge the service, does not pay, does not verify signatures and does not check whether the seller delivers. Answers for a URL are cached for 60 seconds; age_ms states the age of the fetched challenge.

InfraLiveeip155:8453Exactvia cdp

https://x402.halowerk.com/offer/parse

Calls · 30d

1→ 0%

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 16 snapshots so far.

$11.47

Verified settled volume

2,654 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0020

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-08-09 09:39Z

—

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://x402.halowerk.com/llms.txt",
  "name": "parse_402_offer",
  "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": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "pricing": "https://x402.halowerk.com/pricing",
  "summary": "Reads the x402 payment challenge of any URL and returns it field by field: network, asset, exact amount in units and in human form, recipient, and every gap a paying agent should know about.",
  "resource": {
    "url": "https://x402.halowerk.com/offer/parse",
    "iconUrl": "https://x402.halowerk.com/favicon.svg",
    "mimeType": "application/json",
    "description": "Fetches the 402 challenge of a foreign endpoint without paying anything — no payment header, no signature, no settlement — or parses a challenge you already hold. Returns x402_version, every accepts entry with scheme, network, resolved network name and chain id, asset, symbol, decimals and the amount both in raw units and in human form, plus the resource block and any expiry. amount_human is computed with the decimals of that token, resolved from a known-asset table or read from the chain; where",
    "serviceName": "HALOWERK x402werk"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "url": "https://example.com",
            "challenge": {}
          },
          "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",
                "anyOf": [
                  {
                    "required": [
                      "url"
                    ]
                  },
                  {
                    "required": [
                      "challenge"
                    ]
                  }
                ],
                "properties": {
                  "url": {
                    "type": "string",
                    "pattern": "^https?://",
                    "maxLength": 2048,
                    "description": "Absolute http or https URL of the paid endpoint whose 402 challenge should be read. Private, loopback and link-local targets are rejected."
                  },
                  "challenge": {
                    "type": "object",
                    "description": "A 402 challenge object you already hold, in x402 v1 or v2 form. Use this instead of url when nothing should be fetched."
                  },
                  "timeout_ms": {
                    "type": "integer",
                    "default": 6000,
                    "maximum": 12000,
                    "minimum": 1000,
                    "description": "Time budget for fetching the foreign challenge."
                  }
                },
                "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": "0.002",
  "description": "Fetches the 402 challenge of a foreign endpoint without paying anything — no payment header, no signature, no settlement — or parses a challenge you already hold. Returns x402_version, every accepts entry with scheme, network, resolved network name and chain id, asset, symbol, decimals and the amount both in raw units and in human form, plus the resource block and any expiry. amount_human is computed with the decimals of that token, resolved from a known-asset table or read from the chain; where decimals cannot be established it stays null and is listed in unavailable_fields rather than assuming six. parse_warnings names concrete gaps such as a missing description or missing inputSchema, a non-CAIP-2 network, a bridged instead of canonical asset, or an amount sent as a JSON number. It does not judge the service, does not pay, does not verify signatures and does not check whether the seller delivers. Answers for a URL are cached for 60 seconds; age_ms states the age of the fetched challenge.",
  "inputSchema": {
    "type": "object",
    "anyOf": [
      {
        "required": [
          "url"
        ]
      },
      {
        "required": [
          "challenge"
        ]
      }
    ],
    "properties": {
      "url": {
        "type": "string",
        "pattern": "^https?://",
        "maxLength": 2048,
        "description": "Absolute http or https URL of the paid endpoint whose 402 challenge should be read. Private, loopback and link-local targets are rejected."
      },
      "challenge": {
        "type": "object",
        "description": "A 402 challenge object you already hold, in x402 v1 or v2 form. Use this instead of url when nothing should be fetched."
      },
      "timeout_ms": {
        "type": "integer",
        "default": 6000,
        "maximum": 12000,
        "minimum": 1000,
        "description": "Time budget for fetching the foreign challenge."
      }
    },
    "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.",
  "outputSchema": {
    "type": "object",
    "properties": {
      "cache": {
        "enum": [
          "hit",
          "miss"
        ],
        "type": "string"
      },
      "age_ms": {
        "type": [
          "integer",
          "null"
        ]
      },
      "accepts": {
        "type": "array",
        "items": {
          "type": "object",
          "properties": {
            "asset": {
              "type": [
                "string",
                "null"
              ]
            },
            "extra": {
              "type": [
                "object",
                "null"
              ]
            },
            "pay_to": {
              "type": [
                "string",
                "null"
              ]
            },
            "scheme": {
              "type": [
                "string",
                "null"
              ]
            },
            "network": {
              "type": [
                "string",
                "null"
              ]
            },
            "chain_id": {
              "type": [
                "integer",
                "null"
              ]
            },
            "decimals": {
              "type": [
                "integer",
                "null"
              ]
            },
            "amount_human": {
              "type": [
                "string",
                "null"
              ]
            },
            "amount_units": {
              "type": [
                "string",
                "null"
              ]
            },
            "asset_symbol": {
              "type": [
                "string",
                "null"
              ]
            },
            "network_name": {
              "type": [
                "string",
                "null"
              ]
            },
            "asset_canonical": {
              "type": [
                "boolean",
                "null"
              ]
            },
            "decimals_source": {
              "type": [
                "string",
                "null"
              ]
            },
            "max_timeout_seconds": {
              "type": [
                "integer",
                "null"
              ]
            }
          }
        }
      },
      "resource": {
        "type": "object",
        "properties": {
          "url": {
            "type": [
              "string",
              "null"
            ]
          },
          "mime_type": {
            "type": [
              "string",
              "null"
            ]
          },
          "description": {
            "type": [
              "string",
              "null"
            ]
          },
          "input_schema_present": {
            "type": "boolean"
          },
          "output_schema_present": {
            "type": "boolean"
          }
        }
      },
      "expires_at": {
        "type": [
          "string",
          "null"
        ]
      },
      "ts_fetched": {
        "type": [
          "integer",
          "null"
        ]
      },
      "x402_version": {
        "type": [
          "integer",
          "null"
        ]
      },
      "parse_warnings": {
        "type": "array",
        "items": {
          "type": "object"
        }
      },
      "unavailable_fields": {
        "type": "array",
        "items": {
          "type": "string"
        }
      }
    }
  },
  "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.

0.002USDC≈ $0.002 USD

on Base · exact scheme

Pay 0.002 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.

Paid to: 0x2880…C4E5E
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 2000 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": "2000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "url": "https://example.com",
          "challenge": {}
        },
        "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",
              "anyOf": [
                {
                  "required": [
                    "url"
                  ]
                },
                {
                  "required": [
                    "challenge"
                  ]
                }
              ],
              "properties": {
                "url": {
                  "type": "string",
                  "pattern": "^https?://",
                  "maxLength": 2048,
                  "description": "Absolute http or https URL of the paid endpoint whose 402 challenge should be read. Private, loopback and link-local targets are rejected."
                },
                "challenge": {
                  "type": "object",
                  "description": "A 402 challenge object you already hold, in x402 v1 or v2 form. Use this instead of url when nothing should be fetched."
                },
                "timeout_ms": {
                  "type": "integer",
                  "default": 6000,
                  "maximum": 12000,
                  "minimum": 1000,
                  "description": "Time budget for fetching the foreign challenge."
                }
              },
              "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: 2026-08-09 09:39Z
Last indexed by Roundhouse: 2026-09-08 09:30Z
Last enriched (probe, favicon, geo): 2026-09-20 19:15Z
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. 16 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 HALOWERK x402werk 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=HALOWERK%20x402werk'
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://x402.halowerk.com/offer/parse, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

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