Verify an EIP-191 personal_sign or EIP-712 typed-data signature and recover the
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.
Answeringour last check, 2026-10-03
1 of 1checks answered this week
1113 msmedian answer time
$0.003listed price per call
$0.003price 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
POST https://webtools402.176-109-107-191.sslip.io/crypto/verify
| Category | Market data |
|---|---|
| Provider host | webtools402.176-109-107-191.sslip.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 |
|---|---|---|---|---|
| 2026-10-03 | valid payment request | 402 | $0.003 | 1113 ms |
Example input (from the provider)
{
"body": {
"expected_signer": "0x19E7E376E7C213B7E7e7e46cc70A5dD086DAff2A",
"message": "Hello, Ethereum!",
"scheme": "eip191",
"signature": "0xb44193cab85bbebd5fd04528a1b54c684418e8c025602174fede446dec814eac0f05db58a6b7b953c1806cecba389686cdebefdfa701c29014b0c486fc5550301c"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"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": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}