FETCH402
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Resource / 357

healthy

crypto-hash.

GET https://webtools402.176-109-107-191.sslip.io/crypto/hash ↗

Compute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS namehash/labelhash from a string or hex input.

Eligibility
probeable
Failures
0
Last quote
2026-08-12 23:01:05 UTC
Last probe
2026-08-12 23:01:05 UTC
Payment requirements / accepts[] 1 options
State Network Scheme Atomic amount Asset payTo / untrusted
active eip155:8453 exact 1000 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 1 recent
healthy 2026-08-12 23:01:05 UTC GET · HTTP 402 · 134ms · accepts 1 · base 1 ok
Request
GET https://webtools402.176-109-107-191.sslip.io/crypto/hash
Robots
error
Note
robots_error:{:robots_http_status, 404};http_402;accepts=1;base=1
Accepts fingerprint
8c0055da9479856c72bc6feeb74e7c7e1dae7219a6e371391982d3efcc2a6191

Accepts snapshot

[
  {
    "amount": "1000",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "assetTransferMethod": null,
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:8453",
    "payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493",
    "paymentFlow": null,
    "raw": {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:8453",
      "payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493",
      "pay_to": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493",
      "scheme": "exact"
    },
    "scheme": "exact"
  }
]

PaymentRequired raw 

{
  "accepts": [
    {
      "amount": "1000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493",
      "scheme": "exact"
    }
  ],
  "error": "Payment required",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "algo": "selector",
            "input": "transfer(address,uint256)"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "algo": "selector",
            "hash": "0xa9059cbb"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "algo": {
                    "enum": [
                      "keccak256",
                      "sha256",
                      "selector",
                      "event_topic",
                      "namehash",
                      "labelhash"
                    ],
                    "type": "string"
                  },
                  "encoding": {
                    "description": "How to read `input` for keccak256/sha256 (default utf8)",
                    "enum": [
                      "utf8",
                      "hex"
                    ],
                    "type": "string"
                  },
                  "input": {
                    "description": "String / signature / ENS name / 0x-hex",
                    "type": "string"
                  }
                },
                "required": [
                  "algo",
                  "input"
                ],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "resource": {
    "description": "Compute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS namehash/labelhash from a string or hex input.",
    "mimeType": "application/json",
    "serviceName": "crypto-hash",
    "tags": [
      "crypto",
      "keccak256",
      "sha256",
      "selector",
      "namehash",
      "ens",
      "hash"
    ],
    "url": "https://webtools402.176-109-107-191.sslip.io/crypto/hash"
  },
  "x402Version": 2
}

Response headers

{
  "alt-svc": "h3=\":443\"; ma=2592000",
  "content-length": "2",
  "content-type": "application/json",
  "date": "Wed, 12 Aug 2026 23:01:05 GMT",
  "payment-required": "eyJ4NDAyVmVyc2lvbiI6MiwiZXJyb3IiOiJQYXltZW50IHJlcXVpcmVkIiwicmVzb3VyY2UiOnsidXJsIjoiaHR0cHM6Ly93ZWJ0b29sczQwMi4xNzYtMTA5LTEwNy0xOTEuc3NsaXAuaW8vY3J5cHRvL2hhc2giLCJkZXNjcmlwdGlvbiI6IkNvbXB1dGUga2VjY2FrMjU2L3NoYTI1NiwgYSA0LWJ5dGUgZnVuY3Rpb24gc2VsZWN0b3IsIGFuIGV2ZW50IHRvcGljMCwgb3IgYW4gRU5TIG5hbWVoYXNoL2xhYmVsaGFzaCBmcm9tIGEgc3RyaW5nIG9yIGhleCBpbnB1dC4iLCJtaW1lVHlwZSI6ImFwcGxpY2F0aW9uL2pzb24iLCJzZXJ2aWNlTmFtZSI6ImNyeXB0by1oYXNoIiwidGFncyI6WyJjcnlwdG8iLCJrZWNjYWsyNTYiLCJzaGEyNTYiLCJzZWxlY3RvciIsIm5hbWVoYXNoIiwiZW5zIiwiaGFzaCJdfSwiYWNjZXB0cyI6W3sic2NoZW1lIjoiZXhhY3QiLCJuZXR3b3JrIjoiZWlwMTU1Ojg0NTMiLCJhc3NldCI6IjB4ODMzNTg5ZkNENmVEYjZFMDhmNGM3QzMyRDRmNzFiNTRiZEEwMjkxMyIsImFtb3VudCI6IjEwMDAiLCJwYXlUbyI6IjB4RjIyZTU1OGEwMEQ5MUVlMTJBMUY1MEM1MjE4NkZlY0I4ZERGZjQ5MyIsIm1heFRpbWVvdXRTZWNvbmRzIjozMDAsImV4dHJhIjp7Im5hbWUiOiJVU0QgQ29pbiIsInZlcnNpb24iOiIyIn19XSwiZXh0ZW5zaW9ucyI6eyJiYXphYXIiOnsiaW5mbyI6eyJpbnB1dCI6eyJ0eXBlIjoiaHR0cCIsInF1ZXJ5UGFyYW1zIjp7ImFsZ28iOiJzZWxlY3RvciIsImlucHV0IjoidHJhbnNmZXIoYWRkcmVzcyx1aW50MjU2KSJ9LCJtZXRob2QiOiJHRVQifSwib3V0cHV0Ijp7InR5cGUiOiJqc29uIiwiZXhhbXBsZSI6eyJhbGdvIjoic2VsZWN0b3IiLCJoYXNoIjoiMHhhOTA1OWNiYiJ9fX0sInNjaGVtYSI6eyIkc2NoZW1hIjoiaHR0cHM6Ly9qc29uLXNjaGVtYS5vcmcvZHJhZnQvMjAyMC0xMi9zY2hlbWEiLCJ0eXBlIjoib2JqZWN0IiwicHJvcGVydGllcyI6eyJpbnB1dCI6eyJ0eXBlIjoib2JqZWN0IiwicHJvcGVydGllcyI6eyJ0eXBlIjp7InR5cGUiOiJzdHJpbmciLCJjb25zdCI6Imh0dHAifSwibWV0aG9kIjp7InR5cGUiOiJzdHJpbmciLCJlbnVtIjpbIkdFVCIsIkhFQUQiLCJERUxFVEUiXX0sInF1ZXJ5UGFyYW1zIjp7InR5cGUiOiJvYmplY3QiLCJwcm9wZXJ0aWVzIjp7ImFsZ28iOnsidHlwZSI6InN0cmluZyIsImVudW0iOlsia2VjY2FrMjU2Iiwic2hhMjU2Iiwic2VsZWN0b3IiLCJldmVudF90b3BpYyIsIm5hbWVoYXNoIiwibGFiZWxoYXNoIl19LCJpbnB1dCI6eyJ0eXBlIjoic3RyaW5nIiwiZGVzY3JpcHRpb24iOiJTdHJpbmcgLyBzaWduYXR1cmUgLyBFTlMgbmFtZSAvIDB4LWhleCJ9LCJlbmNvZGluZyI6eyJ0eXBlIjoic3RyaW5nIiwiZW51bSI6WyJ1dGY4IiwiaGV4Il0sImRlc2NyaXB0aW9uIjoiSG93IHRvIHJlYWQgYGlucHV0YCBmb3Iga2VjY2FrMjU2L3NoYTI1NiAoZGVmYXVsdCB1dGY4KSJ9fSwicmVxdWlyZWQiOlsiYWxnbyIsImlucHV0Il19fSwicmVxdWlyZWQiOlsidHlwZSIsIm1ldGhvZCJdLCJhZGRpdGlvbmFsUHJvcGVydGllcyI6ZmFsc2V9LCJvdXRwdXQiOnsidHlwZSI6Im9iamVjdCIsInByb3BlcnRpZXMiOnsidHlwZSI6eyJ0eXBlIjoic3RyaW5nIn0sImV4YW1wbGUiOnsidHlwZSI6Im9iamVjdCJ9fSwicmVxdWlyZWQiOlsidHlwZSJdfX0sInJlcXVpcmVkIjpbImlucHV0Il19fX19",
  "server": "uvicorn",
  "via": "1.1 Caddy"
}

Response body 

{}

Request headers

{
  "accept": "*/*",
  "user-agent": "Fetch402Bot/0.1 (+https://fetch402.com/crawler; contact: crawler@fetch402.com)"
}

Machine contract

Schemas.

InputJSON
{
  "method": "GET",
  "queryParams": {
    "algo": "selector",
    "input": "transfer(address,uint256)"
  },
  "type": "http"
}
OutputJSON
{
  "example": {
    "algo": "selector",
    "hash": "0xa9059cbb"
  },
  "type": "json"
}