Api Endpoint

crypto-verify

Verify an EIP-191 personal_sign or EIP-712 typed-data signature and recover the signer address from public inputs (message + signature). Verification/recovery only — never signs.

Open interactive test console

Offering

Provider: webtools402.176-109-107-191.sslip.io
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Security
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://webtools402.176-109-107-191.sslip.io/crypto/verify
MIME type: Not provided
First seen: 2026-10-16T01:50:06.715Z
Last seen: 2026-11-01T14:57:12.185Z
Tags: Crypto, signature, eip712, eip191, verify

Website

Payment pricing

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

Payment option 1: 0.003 USDC
Atomic price: 3000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493"
  }
]

Observed health

Status: Reachable
Latest latency: 1446 ms
Average latency: 1051 ms
HTTP status: 405
Last checked: 2026-11-01T09:18:03.439Z
Reachability: 100% over 13 checks

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

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "properties": {
        "expected_signer": {
          "description": "Optional address to compare the recovered signer against",
          "type": "string"
        },
        "message": {
          "description": "Plain text / 0x-hex (eip191) OR a full typed-data object with types/domain/primaryType/message (eip712)"
        },
        "scheme": {
          "description": "eip191 personal_sign or eip712 typed-data",
          "enum": [
            "eip191",
            "eip712"
          ],
          "type": "string"
        },
        "signature": {
          "description": "0x 65-byte signature",
          "type": "string"
        }
      },
      "required": [
        "scheme",
        "message",
        "signature"
      ]
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}