402Shelf

Search live products across online retailers by keyword and price range. Returns product names, prices, retailers, and direct purchase links. Use when an agent needs current shopping options or price-filtered product recommendations.

SearchLiveeip155:8453Exactvia cdp
ShoppingProductsPrice-search
Calls · 30d
7
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far.
$0.04
Verified settled volume
7 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
7
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-20 17:20Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xdcdf184A64f6489Ec5304750a0AF157440115caE

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.

Accepts

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

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xdcdf…15caE. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "paymentFlow": "authorization",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xdcdf184A64f6489Ec5304750a0AF157440115caE",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "sort": "best_match",
          "query": "wireless headphones",
          "country": "US",
          "currency": "USD",
          "max_price": 100,
          "result_limit": 1
        }
      },
      "price": "$0.001",
      "output": {
        "type": "json",
        "example": {
          "sort": {
            "scope": "retrieved_results",
            "requested": "best_match",
            "applied_at": "upstream",
            "upstream_order_valid": null
          },
          "query": "wireless headphones",
          "source": {
            "engine": "google_shopping",
            "provider": "searchapi",
            "result_set": "shopping_results",
            "location_used": "United States"
          },
          "country": "US",
          "results": [
            {
              "price": 99.99,
              "title": "Soundcore by Anker Space One Wireless Adaptive Noise Cancelling Over-the-Ear Headphones",
              "rating": 4.4,
              "currency": "USD",
              "retailer": "Best Buy",
              "condition": null,
              "image_url": "https://encrypted-tbn2.gstatic.com/shopping?q=tbn:ANd9GcTk5WIRStHqQMqSTyxqxEB8gt1Nq7gaZ-5nhRLrKpCm8q1pZjEY1C3OtYJQ0cffpD_pJuA57rUPvUs7UQ9z8-wRw7uYOPtNMgcyRGCKvMKj8vzug-naMylfeg",
              "product_url": "https://www.google.com/search?ibp=oshop&q=wireless+headphones&prds=catalogid:7204254901795972443,gpcid:15067150910709890119,headlineOfferDocid:5243702224454842866,imageDocid:15025541689179028030,pvo:25,pvt:hg&gl=us&hl=en&udm=28",
              "availability": {
                "text": null,
                "source": null,
                "status": "unknown"
              },
              "review_count": 633,
              "currency_source": "country_context",
              "source_position": 1
            }
          ],
          "currency": "USD",
          "limitations": [
            "Only organic products from one Google Shopping response are included.",
            "Availability is unverified; search inclusion does not establish stock.",
            "Prices may exclude shipping and taxes; installment and ambiguous prices are not compared.",
            "USD was inferred from dollar price symbols and explicit US localization; product currency_source identifies these values.",
            "Local filters excluded products with incompatible, unknown, or out-of-range values."
          ],
          "result_count": 1,
          "result_limit": 1,
          "retrieved_at": "2026-09-20T16:10:15.648486+00:00",
          "applied_filters": {
            "country": {
              "value": "US",
              "location": "United States",
              "applied_at": "upstream"
            },
            "currency": {
              "value": "USD",
              "applied_at": "local",
              "excludes_unknown": true
            },
            "condition": null,
            "max_price": {
              "value": 100,
              "applied_at": "upstream_and_local"
            },
            "min_price": null
          },
          "currency_source": "request"
        }
      },
      "network": "eip155:8453",
      "limitations": [
        "One retrieved organic result set; sorting is not market-wide.",
        "Availability is unverified. Prices may exclude tax/shipping; installments are not compared.",
        "Only used condition is supported. Currency is never converted; unknown/incompatible prices are excluded when compared.",
        "HTTP 200, including zero results, is payable; failed searches do not settle.",
        "A successful provider call can be billed even if later settlement fails.",
        "Settlement awaiting chain confirmation returns 503; do not automatically pay again. Identical settled responses are retained for 24 hours."
      ]
    },
    "schema": {
      "type": "object",
      "$defs": {
        "codes0": {
          "enum": [
            "AE",
            "AI",
            "AR",
            "AT",
            "AU",
            "AW",
            "BE",
            "BM",
            "BR",
            "CA",
            "CC",
            "CH",
            "CL",
            "CO",
            "CX",
            "CZ",
            "DE",
            "DK",
            "ES",
            "FI",
            "FK",
            "FR",
            "GB",
            "GF",
            "GP",
            "GR",
            "GS",
            "HK",
            "HM",
            "HU",
            "ID",
            "IE",
            "IL",
            "IN",
            "IO",
            "IT",
            "JP",
            "KR",
            "KY",
            "MQ",
            "MS",
            "MX",
            "MY",
            "NC",
            "NF",
            "NL",
            "NO",
            "NZ",
            "PF",
            "PH",
            "PL",
            "PM",
            "PT",
            "RE",
            "RO",
            "RU",
            "SA",
            "SE",
            "SG",
            "SK",
            "TC",
            "TF",
            "TH",
            "TK",
            "TR",
            "TW",
            "UA",
            "US",
            "VG",
            "VN",
            "WF",
            "YT",
            "ZA"
          ]
        },
        "codes1": {
          "enum": [
            "AED",
            "AFN",
            "ALL",
            "AMD",
            "AOA",
            "ARS",
            "AUD",
            "AWG",
            "AZN",
            "BAM",
            "BBD",
            "BDT",
            "BHD",
            "BIF",
            "BMD",
            "BND",
            "BOB",
            "BOV",
            "BRL",
            "BSD",
            "BTN",
            "BWP",
            "BYN",
            "BZD",
            "CAD",
            "CDF",
            "CHE",
            "CHF",
            "CHW",
            "CLF",
            "CLP",
            "CNY",
            "COP",
            "COU",
            "CRC",
            "CUP",
            "CVE",
            "CZK",
            "DJF",
            "DKK",
            "DOP",
            "DZD",
            "EGP",
            "ERN",
            "ETB",
            "EUR",
            "FJD",
            "FKP",
            "GBP",
            "GEL",
            "GHS",
            "GIP",
            "GMD",
            "GNF",
            "GTQ",
            "GYD",
            "HKD",
            "HNL",
            "HTG",
            "HUF",
            "IDR",
            "ILS",
            "INR",
            "IQD",
            "IRR",
            "ISK",
            "JMD",
            "JOD",
            "JPY",
            "KES",
            "KGS",
            "KHR",
            "KMF",
            "KPW",
            "KRW",
            "KWD",
            "KYD",
            "KZT",
            "LAK",
            "LBP",
            "LKR",
            "LRD",
            "LSL",
            "LYD",
            "MAD",
            "MDL",
            "MGA",
            "MKD",
            "MMK",
            "MNT",
            "MOP",
            "MRU",
            "MUR",
            "MVR",
            "MWK",
            "MXN",
            "MXV",
            "MYR",
            "MZN",
            "NAD",
            "NGN",
            "NIO",
            "NOK",
            "NPR",
            "NZD",
            "OMR",
            "PAB",
            "PEN",
            "PGK",
            "PHP",
            "PKR",
            "PLN",
            "PYG",
            "QAR",
            "RON",
            "RSD",
            "RUB",
            "RWF",
            "SAR",
            "SBD",
            "SCR",
            "SDG",
            "SEK",
            "SGD",
            "SHP",
            "SLE",
            "SOS",
            "SRD",
            "SSP",
            "STN",
            "SVC",
            "SYP",
            "SZL",
            "THB",
            "TJS",
            "TMT",
            "TND",
            "TOP",
            "TRY",
            "TTD",
            "TWD",
            "TZS",
            "UAH",
            "UGX",
            "USD",
            "USN",
            "UYI",
            "UYU",
            "UYW",
            "UZS",
            "VED",
            "VES",
            "VND",
            "VUV",
            "WST",
            "XAD",
            "XAF",
            "XAG",
            "XAU",
            "XBA",
            "XBB",
            "XBC",
            "XBD",
            "XCD",
            "XCG",
            "XDR",
            "XOF",
            "XPD",
            "XPF",
            "XPT",
            "XSU",
            "XUA",
            "YER",
            "ZAR",
            "ZMW",
            "ZWG"
          ]
        },
        "priceFilter": {
          "anyOf": [
            {
              "type": "object",
              "required": [
                "value",
                "applied_at"
              ],
              "properties": {
                "value": {
                  "type": "number",
                  "maximum": 1000000000,
                  "minimum": 0
                },
                "applied_at": {
                  "enum": [
                    "local",
                    "upstream_and_local"
                  ]
                }
              },
              "additionalProperties": false
            },
            {
              "type": "null"
            }
          ]
        }
      },
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "query",
                "country"
              ],
              "properties": {
                "sort": {
                  "enum": [
                    "best_match",
                    "price_low_to_high",
                    "rating_high_to_low"
                  ],
                  "type": "string",
                  "examples": [
                    "best_match"
                  ],
                  "description": "best_match (default), price_low_to_high or rating_high_to_low; retrieved set only."
                },
                "query": {
                  "type": "string",
                  "examples": [
                    "wireless headphones"
                  ],
                  "maxLength": 500,
                  "minLength": 1,
                  "description": "Product search terms; required, 1-500 characters."
                },
                "country": {
                  "$ref": "#/$defs/codes0",
                  "type": "string",
                  "examples": [
                    "US"
                  ],
                  "description": "Required supported two-letter country code; selects Google Shopping location."
                },
                "currency": {
                  "$ref": "#/$defs/codes1",
                  "type": "string",
                  "examples": [
                    "USD"
                  ],
                  "description": "Optional ISO currency filter. No conversion; defaults to the country currency."
                },
                "condition": {
                  "enum": [
                    "used"
                  ],
                  "type": "string",
                  "examples": [
                    "used"
                  ],
                  "description": "Only used is supported. Omit for any condition; stock remains unverified."
                },
                "max_price": {
                  "type": "number",
                  "maximum": 1000000000,
                  "minimum": 0,
                  "examples": [
                    100
                  ],
                  "description": "Inclusive maximum comparable product price; must be at least min_price."
                },
                "min_price": {
                  "type": "number",
                  "maximum": 1000000000,
                  "minimum": 0,
                  "examples": [
                    25
                  ],
                  "description": "Inclusive minimum comparable product price; excludes tax and shipping."
                },
                "result_limit": {
                  "type": "integer",
                  "maximum": 20,
                  "minimum": 1,
                  "examples": [
                    1
                  ],
                  "description": "Maximum returned products, 1-20; default 10. Zero results is a payable success."
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "query",
                "country",
                "currency",
                "currency_source",
                "applied_filters",
                "sort",
                "result_limit",
                "results",
                "result_count",
                "retrieved_at",
                "source",
                "limitations"
              ],
              "properties": {
                "sort": {
                  "type": "object",
                  "required": [
                    "requested",
                    "applied_at",
                    "scope",
                    "upstream_order_valid"
                  ],
                  "properties": {
                    "scope": {
                      "enum": [
                        "retrieved_results"
                      ]
                    },
                    "requested": {
                      "enum": [
                        "best_match",
                        "price_low_to_high",
                        "rating_high_to_low"
                      ]
                    },
                    "applied_at": {
                      "enum": [
                        "upstream",
                        "local",
                        "upstream_and_local"
                      ]
                    },
                    "upstream_order_valid": {
                      "anyOf": [
                        {
                          "type": "boolean"
                        },
                        {
                          "type": "null"
                        }
                      ]
                    }
                  },
                  "additionalProperties": false
                },
                "query": {
                  "type": "string",
                  "maxLength": 500
                },
                "source": {
                  "type": "object",
                  "required": [
                    "provider",
                    "engine",
                    "result_set",
                    "location_used"
                  ],
                  "properties": {
                    "engine": {
                      "enum": [
                        "google_shopping"
                      ]
                    },
                    "provider": {
                      "enum": [
                        "searchapi",
                        "fixture"
                      ]
                    },
                    "result_set": {
                      "enum": [
                        "shopping_results"
                      ]
                    },
                    "location_used": {
                      "anyOf": [
                        {
                          "type": "string",
                          "maxLength": 300
                        },
                        {
                          "type": "null"
                        }
                      ]
                    }
                  },
                  "description": "Search provider, engine, result set and location.",
                  "additionalProperties": false
                },
                "country": {
                  "$ref": "#/$defs/codes0"
                },
                "results": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "title",
                      "price",
                      "currency",
                      "currency_source",
                      "retailer",
                      "product_url",
                      "image_url",
                      "rating",
                      "review_count",
                      "condition",
                      "availability",
                      "source_position"
                    ],
                    "properties": {
                      "price": {
                        "anyOf": [
                          {
                            "type": "number",
                            "maximum": 1000000000000000,
                            "minimum": 0
                          },
                          {
                            "type": "null"
                          }
                        ],
                        "description": "Numeric price, or null; may exclude tax/shipping."
                      },
                      "title": {
                        "anyOf": [
                          {
                            "type": "string",
                            "maxLength": 1000
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "rating": {
                        "anyOf": [
                          {
                            "type": "number",
                            "maximum": 5,
                            "minimum": 0
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "currency": {
                        "anyOf": [
                          {
                            "$ref": "#/$defs/codes1"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "retailer": {
                        "anyOf": [
                          {
                            "type": "string",
                            "maxLength": 300
                          },
                          {
                            "type": "null"
                          }
                        ],
                        "description": "Reported retailer name, or null."
                      },
                      "condition": {
                        "anyOf": [
                          {
                            "type": "string",
                            "maxLength": 100
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "image_url": {
                        "anyOf": [
                          {
                            "type": "string",
                            "format": "uri",
                            "pattern": "^https?://",
                            "maxLength": 4096
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "product_url": {
                        "anyOf": [
                          {
                            "type": "string",
                            "format": "uri",
                            "pattern": "^https?://",
                            "maxLength": 4096
                          },
                          {
                            "type": "null"
                          }
                        ],
                        "description": "Actual source link; may be Google Shopping, not a retailer checkout URL."
                      },
                      "availability": {
                        "type": "object",
                        "required": [
                          "status",
                          "source",
                          "text"
                        ],
                        "properties": {
                          "text": {
                            "anyOf": [
                              {
                                "type": "string",
                                "maxLength": 200
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "source": {
                            "anyOf": [
                              {
                                "enum": [
                                  "searchapi.google_shopping.shopping_results.availability",
                                  "searchapi.google_shopping.shopping_results.in_stock"
                                ]
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "status": {
                            "enum": [
                              "in_stock",
                              "out_of_stock",
                              "preorder",
                              "unknown"
                            ]
                          }
                        },
                        "description": "Unverified stock is unknown, with null source/text.",
                        "additionalProperties": false
                      },
                      "review_count": {
                        "anyOf": [
                          {
                            "type": "integer",
                            "maximum": 9007199254740991,
                            "minimum": 0
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "currency_source": {
                        "anyOf": [
                          {
                            "enum": [
                              "provider",
                              "price_text",
                              "country_context"
                            ]
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "source_position": {
                        "anyOf": [
                          {
                            "type": "integer",
                            "maximum": 9007199254740991,
                            "minimum": 1
                          },
                          {
                            "type": "null"
                          }
                        ]
                      }
                    },
                    "additionalProperties": false
                  },
                  "maxItems": 20
                },
                "currency": {
                  "$ref": "#/$defs/codes1"
                },
                "limitations": {
                  "type": "array",
                  "items": {
                    "type": "string",
                    "maxLength": 500
                  }
                },
                "result_count": {
                  "type": "integer",
                  "maximum": 20,
                  "minimum": 0
                },
                "result_limit": {
                  "type": "integer",
                  "maximum": 20,
                  "minimum": 1
                },
                "retrieved_at": {
                  "type": "string",
                  "format": "date-time"
                },
                "applied_filters": {
                  "type": "object",
                  "required": [
                    "country",
                    "currency",
                    "min_price",
                    "max_price",
                    "condition"
                  ],
                  "properties": {
                    "country": {
                      "type": "object",
                      "required": [
                        "value",
                        "applied_at",
                        "location"
                      ],
                      "properties": {
                        "value": {
                          "$ref": "#/$defs/codes0"
                        },
                        "location": {
                          "type": "string",
                          "maxLength": 300
                        },
                        "applied_at": {
                          "enum": [
                            "upstream"
                          ]
                        }
                      },
                      "additionalProperties": false
                    },
                    "currency": {
                      "type": "object",
                      "required": [
                        "value",
                        "applied_at",
                        "excludes_unknown"
                      ],
                      "properties": {
                        "value": {
                          "$ref": "#/$defs/codes1"
                        },
                        "applied_at": {
                          "enum": [
                            "local",
                            "not_applied"
                          ]
                        },
                        "excludes_unknown": {
                          "type": "boolean"
                        }
                      },
                      "additionalProperties": false
                    },
                    "condition": {
                      "anyOf": [
                        {
                          "type": "object",
                          "required": [
                            "value",
                            "applied_at"
                          ],
                          "properties": {
                            "value": {
                              "enum": [
                                "used"
                              ]
                            },
                            "applied_at": {
                              "enum": [
                                "upstream_and_local"
                              ]
                            }
                          },
                          "additionalProperties": false
                        },
                        {
                          "type": "null"
                        }
                      ]
                    },
                    "max_price": {
                      "$ref": "#/$defs/priceFilter"
                    },
                    "min_price": {
                      "$ref": "#/$defs/priceFilter"
                    }
                  },
                  "additionalProperties": false
                },
                "currency_source": {
                  "enum": [
                    "request",
                    "country_default"
                  ]
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-24 19:10Z
Last indexed by Roundhouse
2026-09-24 19:30Z
Last enriched (probe, favicon, geo)
2026-09-20 16:45Z
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. 4 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 402Shelf 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=402Shelf'
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://api.402shelf.com/products/search, 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.