Api Endpoint

touchstone.locomot.io

Recover who signed a message (ecrecover, EIP-191 personal_sign). For EIP-712 typed data use POST /verify/sig. Every answer signed.

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Offering

Provider
touchstone.locomot.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Security
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://touchstone.locomot.io/verify/sig
MIME type
application/json
First seen
2026-10-16T01:51:40.954Z
Last seen
Tags
None supplied

Payment pricing

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

Payment option 1
0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0xa3091005a76b1480F1897a9D0C2e1c55B7767674"
  }
]

Observed health

Status
Healthy
Latest latency
287 ms
Average latency
649 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": {
        "signature": {
          "type": "string",
          "description": "0x-hex signature"
        },
        "message": {
          "type": "string",
          "description": "signed message (text or 0x-hex)"
        },
        "type": {
          "type": "string",
          "description": "eip191"
        },
        "expected_signer": {
          "type": "string",
          "description": "optional address to match against"
        }
      },
      "required": [
        "signature",
        "message"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "expected_signer": {
              "description": "optional address to match against",
              "type": "string"
            },
            "message": {
              "description": "signed message (text or 0x-hex)",
              "type": "string"
            },
            "signature": {
              "description": "0x-hex signature",
              "type": "string"
            },
            "type": {
              "description": "eip191",
              "type": "string"
            }
          },
          "required": [
            "signature",
            "message"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "digest": {
          "type": "string"
        },
        "expected_signer": {
          "type": "string"
        },
        "matches": {
          "type": "boolean"
        },
        "op": {
          "type": "string"
        },
        "scheme": {
          "type": "string"
        },
        "signer": {
          "type": "string"
        },
        "source": {
          "type": "string"
        }
      },
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}