usdc-receipt-verifier.soloearn.workers.dev

Name: usdc-receipt-verifier.soloearn.workers.dev
Price: 0.005 USDC
Availability: InStock

Check that a Base transaction paid at least N USDC to an address, and mark it used once. x402 pay-per-call: $0.005 per check, no account or API key.

OtherLiveeip155:8453Exactvia facilitator:payAI

https://usdc-receipt-verifier.soloearn.workers.dev/v1/verify

Settlements · 30d

2↓ 100%

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.

$0.01

Verified settled volume

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

$0.0050

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

Never called

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x8ca7ae7A69312a37a11bDA85b8D13b79e9De944e

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.

{
  "error": "PAYMENT-SIGNATURE header is required; pass ?tx=0x..&to=0x..&min=.. (inputs are validated free before payment)",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8ca7ae7A69312a37a11bDA85b8D13b79e9De944e",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://usdc-receipt-verifier.soloearn.workers.dev/v1/verify",
    "mimeType": "application/json",
    "description": "Verify that a Base mainnet transaction paid at least N USDC to an address (optionally from a given sender, with K confirmations). Returns matched transfer, block time and confirmations. Read-only."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "to": "0xf2f75e73ba109a453198915324749cd20fdc1f44",
            "tx": "0x46b6ee9d8d2c168689b619c0e5e8843c5aa3ad1d5e3110973e43974cae9894dd",
            "min": "24"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "code": "ok",
            "verified": true,
            "block_time": "2026-10-09T12:00:00.000Z",
            "confirmations": 12,
            "matched_transfer": {
              "from": "0xabc...",
              "log_index": 7,
              "amount_usdc": "29"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "type": "object",
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "tx",
                  "to",
                  "min"
                ],
                "properties": {
                  "to": {
                    "type": "string",
                    "pattern": "^0x[0-9a-fA-F]{40}$"
                  },
                  "tx": {
                    "type": "string",
                    "pattern": "^0x[0-9a-fA-F]{64}$"
                  },
                  "min": {
                    "type": "string"
                  },
                  "from": {
                    "type": "string",
                    "pattern": "^0x[0-9a-fA-F]{40}$"
                  },
                  "confirmations": {
                    "type": "string"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "properties": {
              "code": {
                "type": "string"
              },
              "verified": {
                "type": "boolean"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

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 0x8ca7…e944e. The signed payment is good for 2 minutes.

Paid to: 0x8ca7…e944e
USD Coin contract: 0x8335…02913
Payment window: 2 minutes
As published: 5000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x8ca7ae7A69312a37a11bDA85b8D13b79e9De944e",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "to": "0xf2f75e73ba109a453198915324749cd20fdc1f44",
          "tx": "0x46b6ee9d8d2c168689b619c0e5e8843c5aa3ad1d5e3110973e43974cae9894dd",
          "min": "24"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "code": "ok",
          "verified": true,
          "block_time": "2026-10-09T12:00:00.000Z",
          "confirmations": 12,
          "matched_transfer": {
            "from": "0xabc...",
            "log_index": 7,
            "amount_usdc": "29"
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "type": "object",
          "properties": {
            "type": {
              "const": "http"
            },
            "method": {
              "const": "GET"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "tx",
                "to",
                "min"
              ],
              "properties": {
                "to": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}$"
                },
                "tx": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{64}$"
                },
                "min": {
                  "type": "string"
                },
                "from": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}$"
                },
                "confirmations": {
                  "type": "string"
                }
              }
            }
          }
        },
        "output": {
          "type": "object",
          "properties": {
            "code": {
              "type": "string"
            },
            "verified": {
              "type": "boolean"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-10-18 00:00Z
Last indexed by Roundhouse: 2026-10-26 21:16Z
Last enriched (probe, favicon, geo): 2026-10-12 00:45Z
x402 version: 2
Max timeout: 120s
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 usdc-receipt-verifier.soloearn.workers.dev 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=usdc-receipt-verifier.soloearn.workers.dev'
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://usdc-receipt-verifier.soloearn.workers.dev/v1/verify, 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.