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TD Agent Utility · OpenAPI Specification Validator
x402
TD Agent Utility · OpenAPI Specification Validator is a paid API for AI agents from tdagentutility.co.uk, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-16).
Validates an OpenAPI specification URL or document, checking parse validity, operation completeness, schema correctness, and security schemes, returning a scored report.
Price / call$0.003
Success—
StatusUnknown
How this service works
Independent website and deployment verification for AI agents: HTTP, DNS, TLS and Chromium screenshot evidence. Three deterministic tools, x402 V2 Base USDC.
Output
Returns a JSON object with a numeric quality score (0–100), a boolean parse_valid flag, a result_status string (e.g. PASS/FAIL), arrays of errors, warnings, recursive_refs, unresolved_refs, malformed_schemas, ambiguous_parameters, missing_operation_ids, undescribed_operations, and duplicate_operation_ids, plus a list of servers, security_schemes, operations, the detected openapi_version, operation_count, a summary string, and a checked_at timestamp.
Example use cases
Pre-publish API spec audit
“Before I publish my API docs, can you validate my OpenAPI spec at https://api.myapp.com/openapi.yaml and tell me if there are any parse errors, unresolved refs, or operations missing descriptions?”
CI pipeline spec quality check
“Run a validation check on the OpenAPI spec at https://staging.internalapi.io/openapi.json and give me the score, result status, and a list of any ambiguous parameters or duplicate operation IDs I need to fix.”
Third-party API spec review
“I'm integrating with a vendor API — can you validate their OpenAPI spec at https://vendor.example.com/api-docs and tell me if it's well-formed, what version it is, and flag any security scheme issues or malformed schemas?”
Technical details
Endpoint
POSThttps://tdagentutility.co.uk/v1/openapi-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a deterministic, scored audit of an OpenAPI specification document — especially when you want structured output listing specific categories of issues (unresolved refs, missing operation IDs, ambiguous parameters, duplicate IDs, undescribed operations) rather than just a binary valid/invalid check. It is particularly useful in CI/CD pipelines, pre-publish reviews, or when evaluating third-party API specs for integration readiness.
Side effects
- Spec URL unreachable or returns non-200 — errors array populated, parse_valid false
- Document is not valid YAML or JSON — parse_valid false, errors list parse failure
- Circular/recursive references detected — recursive_refs array populated
- Network timeout fetching remote spec — result_status FAIL with timeout error
- Empty or null input — returns score 0, valid false with appropriate error
Output
Schema · Response
{
"type": "json",
"example": {
"tool": "openapi_check",
"score": 0,
"valid": false,
"errors": [],
"servers": [],
"summary": "",
"warnings": [],
"checked_at": "2026-10-15T00:00:00Z",
"operations": [],
"parse_valid": false,
"result_status": "PASS",
"recursive_refs": [],
"openapi_version": null,
"operation_count": 0,
"unresolved_refs": [],
"security_schemes": {},
"malformed_schemas": [],
"ambiguous_parameters": [],
"missing_operation_ids": [],
"undescribed_operations": [],
"duplicate_operation_ids": []
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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