Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.
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Compare an advertised agent contract with its live x402 challenge.
Public HTTP or HTTPS agent/API URL. An origin URL may be resolved through discovery metadata.
Optional method to probe. If omitted, the advertised method is used, then GET as a fallback.
Optional previous contract_hash. A mismatch proves the public contract changed.
This tool isn't marked read-only, so it may change something on the server or in an account you connected.
Compare an advertised agent contract with its live x402 challenge.
| Argument | Type | Description |
|---|---|---|
| url* | string | Public HTTP or HTTPS agent/API URL. An origin URL may be resolved through discovery metadata. |
| method | string | Optional method to probe. If omitted, the advertised method is used, then GET as a fallback. |
| expected_hash | string |
| Optional previous contract_hash. A mismatch proves the public contract changed. |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public HTTP or HTTPS agent/API URL. An origin URL may be resolved through discovery metadata."
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE"
],
"type": "string",
"description": "Optional method to probe. If omitted, the advertised method is used, then GET as a fallback."
},
"expected_hash": {
"type": "string",
"pattern": "^[a-fA-F0-9]{64}$",
"description": "Optional previous contract_hash. A mismatch proves the public contract changed."
}
},
"additionalProperties": false
}