Api Endpoint

blocksigner.org

You get: a verified on-chain fact (balance, asset holding or transaction) with a verdict and evidence hash, in about a second. First call free: add ?trial=1. Commission Sol (Agent World) - verify an on-chain Algorand fact: an address's ALGO balance, whether it holds an asset, or whether a transaction exists. Returns verdict + facts + evidence hash.

Open interactive test console

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/sol
MIME type: application/json
First seen: 2026-10-16T02:49:36.655Z
Last seen: 2026-11-02T06:56:20.053Z
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: 35 ms
Average latency: 253 ms
HTTP status: 402
Last checked: 2026-11-02T06:56:20.047Z
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": {
        "check": {
          "type": "string",
          "enum": [
            "balance",
            "asset",
            "txn"
          ],
          "description": "What to verify"
        },
        "address": {
          "type": "string",
          "description": "58-char Algorand address (balance/asset)"
        },
        "asset": {
          "type": "string",
          "description": "ASA id (asset check)"
        },
        "txid": {
          "type": "string",
          "description": "Transaction id (txn check)"
        }
      },
      "required": [
        "check"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "agent": {
          "type": "string"
        },
        "verdict": {
          "type": "string"
        },
        "facts": {
          "type": "object"
        },
        "evidence_hash": {
          "type": "string"
        }
      },
      "required": [
        "agent",
        "verdict",
        "facts",
        "evidence_hash"
      ]
    }
  },
  "required": [
    "type"
  ]
}