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OpenAPI Diff
x402
OpenAPI Diff is a paid API for AI agents from api.edifiedlab.com, paid per call via x402, $0.011/call, status unknown (last checked 2026-09-30).
Compares two OpenAPI specifications to detect breaking changes, added paths, and contract drift between versions.
Price / call$0.011
Success—
StatusUnknown
How this service works
Diff two OpenAPI specs: breaking changes, added paths, and contract drift.
Output
A structured report detailing breaking changes (removed paths, changed parameters, modified response schemas), newly added paths, and overall contract drift between the base and revised OpenAPI specifications.
Example use cases
Pre-release breaking change audit
“Before I deploy this new API version, compare the base spec and the updated revised spec to find any breaking changes I might be introducing for existing clients.”
CI pipeline contract drift check
“I have our old OpenAPI spec and the latest generated one from our codebase — can you diff them and flag any paths that were removed or had their request/response schemas changed?”
Third-party API upgrade review
“A vendor just gave me their new OpenAPI spec. Compare it against the version we integrated six months ago and tell me what changed — especially anything that would break our integration.”
Technical details
Endpoint
POSThttps://api.edifiedlab.com/v1/tools/openapi/compare?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a dedicated, structured diff of two OpenAPI specifications focused on breaking changes and contract drift. Prefer this over a generic JSON diff tool when you need API-semantic awareness (e.g. distinguishing breaking vs non-breaking changes). Use the sibling 'Structured Data Tools' endpoint for general-purpose JSON diff without OpenAPI semantics.
Side effects
- Invalid or malformed OpenAPI spec in either base or revised field — returns parsing error
- Spec exceeds 262,144 character limit — returns size error
- path_count exceeds maximum of 5000 — returns validation error
- Missing both base_spec/base_openapi or revised_spec/revised_openapi fields — returns missing input error
- Non-OpenAPI JSON/YAML structure submitted — returns schema mismatch error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| base_spec | — | |
| path_count | integer | |
| base_openapi | — | |
| revised_spec | — | |
| revised_openapi | — |
Tags
x402
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