Index onlineMerchant portal
Api Endpoint

blocksigner.org

You get: one merchant's wash-risk grade with indicators and top payers, before you pay it. First call free: add ?trial=1. PROVENANCE WASH CHECK - one Algorand x402 merchant's wash-risk grade before you pay it: score, level, indicators (payer count, concentration, self-dealing, fresh wallets, timing, shared funders) and top payers. ?payTo=<address>; scored live if not in the latest report.

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Offering

Provider
blocksigner.org
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://blocksigner.org/commission/washcheck
MIME type
application/json
First seen
2026-10-16T02:49:27.036Z
Last seen
Tags
None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
5000 atomic units
Atomic price: 5000 · Network: algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · Asset: 31566704 · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "asset": "31566704",
    "amount": "5000",
    "payTo": "K5HIZPOUUUBQ5WJ6I3DT6NGIQUMALYJYSVVBY7CXA3BYBWY6225DNNBDSA"
  }
]

Observed health

Status
Healthy
Latest latency
37 ms
Average latency
131 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "payTo": {
          "type": "string",
          "description": "58-char Algorand payTo address of the merchant to check"
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "grade": {
          "type": "string"
        },
        "score": {
          "type": [
            "integer",
            "null"
          ]
        },
        "indicators": {
          "type": "array"
        }
      },
      "required": [
        "grade"
      ]
    }
  },
  "required": [
    "type"
  ]
}