Recover who signed a message (ecrecover, EIP-191 personal_sign)
Recover who signed a message (ecrecover, EIP-191 personal_sign). For EIP-712 typed data use POST /verify/sig. Every answer signed.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
256 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://touchstone.locomot.io/verify/sig
| Category | Everything else |
|---|---|
| Provider host | touchstone.locomot.io |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.002 | 256 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"expected_signer": "0x19E7E376E7C213B7E7e7e46cc70A5dD086DAff2A",
"message": "touchstone",
"signature": "0xa4237c8d9891e32f5e7c6ea14ca0a9a016454f1d23210b76caac4cc6ebf0f4480034bbf06da24dcef3d0f1c9654073d31fc2c6fef0d6f4306fb4c00c3ac5d20a1b",
"type": "eip191"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$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"
}