PayeeGuard

Deterministic payment-destination preflight for agents, paid per call.

OtherLiveeip155:8453Exactvia cdp
BasePaymentsAddressChecksumeip55
Calls · 30d
8
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.
$6.96
Verified settled volume
503 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
8
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-23 07:40Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x9876af0F6D8Ed5155Cd02d1ca56D128601612690

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.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x9876…12690. The signed payment is good for 1 minute.

USD Coin contract
0x8335…02913
Payment window
1 minute
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9876af0F6D8Ed5155Cd02d1ca56D128601612690",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "address": "0x7a3D40f7c6B18E5920Ab7C3e5d81f4A04E6F8a0D",
          "expected_address": "0x7A3D9C1b5e2F4A8d6C0b3E5F7a9D1c2b4e6f8A0d"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "result": {
            "asset": {
              "kind": "erc20",
              "exists": null,
              "symbol": null,
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "sinks": {
              "is_precompile": false,
              "is_burn_address": false,
              "is_zero_address": false
            },
            "address": {
              "input": "0x7a3D40f7c6B18E5920Ab7C3e5d81f4A04E6F8a0D",
              "canonical": "0x7a3D40f7c6B18E5920Ab7C3e5d81f4A04E6F8a0D"
            },
            "checksum": {
              "form": "mixed",
              "valid": true
            },
            "self_send": {
              "matches": null,
              "present": false
            },
            "unresolved": [
              "whether the asset is a deployed contract"
            ],
            "can_receive": {
              "basis": "erc20-balance-mapping",
              "value": true
            },
            "destination": {
              "is_contract": null,
              "account_kind": "unknown"
            },
            "denylist_hits": [],
            "expected_comparison": {
              "match": "vanity_collision",
              "edit_distance": 25,
              "shared_prefix": 4,
              "shared_suffix": 8,
              "hamming_distance": 26
            }
          },
          "verdict": "block",
          "evidence": [
            {
              "code": "EXPECTED_ADDRESS_VANITY_COLLISION",
              "detail": "Shares the first 4 and last 8 hex digits with the address you expected while differing throughout the middle: the signature of a ground look-alike.",
              "severity": "critical"
            }
          ],
          "warnings": [],
          "confidence": 1,
          "risk_codes": [
            "EXPECTED_ADDRESS_VANITY_COLLISION",
            "ASSET_EXISTENCE_UNKNOWN"
          ],
          "request_hash": "sha256:3f9a…c104",
          "data_versions": {
            "chain": "eip155:8453",
            "policy": "2026-09-19",
            "denylist": "2026-08-03.1"
          },
          "policy_version": "2026-09-19"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "title": "PayeeGuardRequest",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "address"
              ],
              "properties": {
                "from": {
                  "type": "string",
                  "pattern": "^0[xX][0-9a-fA-F]{40}$",
                  "description": "The sender, when you have one. Enables the self-send check."
                },
                "asset": {
                  "type": "string",
                  "default": "native",
                  "description": "\"native\" for ETH, or an ERC-20 contract address. Defaults to \"native\". The asset decides which receivability question is asked, and they have different answers."
                },
                "address": {
                  "type": "string",
                  "pattern": "^0[xX][0-9a-fA-F]{40}$",
                  "description": "The destination you are about to send to. Send it exactly as you hold it, casing included: the casing is the checksum, and normalising it before you ask destroys the evidence this endpoint checks."
                },
                "expected_address": {
                  "type": "string",
                  "pattern": "^0[xX][0-9a-fA-F]{40}$",
                  "description": "The address you believe the destination should be. Supplying it enables the comparison checks: exact match, case-only difference, small edit distance, and the shared prefix-and-suffix shape of a ground look-alike."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "ok",
                "verdict",
                "result",
                "request_hash",
                "data_versions"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "asset": {
                      "type": "object"
                    },
                    "sinks": {
                      "type": "object"
                    },
                    "address": {
                      "type": "object"
                    },
                    "checksum": {
                      "type": "object"
                    },
                    "self_send": {
                      "type": "object"
                    },
                    "unresolved": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "can_receive": {
                      "type": "object",
                      "description": "value is true, false, or null when the bytecode does not decide it."
                    },
                    "destination": {
                      "type": "object"
                    },
                    "denylist_hits": {
                      "type": "array",
                      "items": {
                        "type": "object"
                      }
                    },
                    "expected_comparison": {
                      "type": [
                        "object",
                        "null"
                      ]
                    }
                  }
                },
                "verdict": {
                  "enum": [
                    "allow",
                    "warn",
                    "block",
                    "unknown"
                  ],
                  "type": "string",
                  "description": "Precedence: block, then unknown, then warn, then allow."
                },
                "evidence": {
                  "type": "array",
                  "items": {
                    "type": "object"
                  }
                },
                "warnings": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  }
                },
                "risk_codes": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  }
                },
                "request_hash": {
                  "type": "string"
                },
                "data_versions": {
                  "type": "object"
                },
                "policy_version": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-24 07:39Z
Last indexed by Roundhouse
2026-09-24 12:10Z
Last enriched (probe, favicon, geo)
2026-09-19 20:45Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 404
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. 5 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 PayeeGuard 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=PayeeGuard'
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://payee.schemasure.com/v1/guard/payee, 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.