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OpenAPI Change Report – Breaking Change Detector
x402
OpenAPI Change Report – Breaking Change Detector is a paid API for AI agents from ai-data-marketplace-1042299154756.us-central1.run.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Compares two OpenAPI specifications (before and after) and returns a structured diff highlighting breaking and non-breaking changes.
Price / call$0.01
Success—
StatusUnknown
How this service works
Audit one public site or compare up to five domains across llms.txt, OpenAPI, robots, sitemap, x402 metadata, and the discovery surfaces autonomous buyers rely on.
Output
Returns a JSON object with a success boolean, total_changes integer, breaking_changes integer, has_breaking_changes boolean, and a changes array where each item includes the affected property path, a changeText describing what changed (e.g. 'object_removed'), and a breaking boolean indicating severity.
Example use cases
Pre-deployment breaking change check
“I'm about to deploy a new version of my API. Here's the current OpenAPI JSON and here's the proposed new one — can you compare them and flag any breaking changes before I push to production?”
API versioning audit for client teams
“We updated our REST API and need to tell client teams what broke. Compare the old OpenAPI spec and the new one and give me a list of every breaking change with the property path and what changed.”
CI/CD gate for API compatibility
“I want to make sure this pull request doesn't introduce breaking API changes — can you diff the before and after OpenAPI specs and tell me if has_breaking_changes is true?”
Technical details
Endpoint
GEThttps://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/openapi_change_reportWhen to prefer
Use this endpoint when you need a structured, machine-readable diff between two OpenAPI specification versions — especially to programmatically detect breaking changes in a CI/CD pipeline, pre-deployment review, or client communication workflow. Prefer this over manual diffing or generic JSON diff tools when you need breaking-change semantics (not just structural differences) and a per-property breakdown of what changed and why it matters.
Side effects
- Invalid or non-parseable OpenAPI JSON in before or after fields returns an error
- External $ref references in the OpenAPI spec are rejected — only local # references are allowed
- OpenAPI objects exceeding 500 KB are rejected
- Missing required before or after query parameters returns a validation error
- Malformed JSON structure that doesn't conform to OpenAPI schema may produce incomplete diff results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"changes": [
{
"breaking": true,
"property": "/users",
"changeText": "object_removed"
}
],
"success": true,
"total_changes": 2,
"breaking_changes": 1,
"has_breaking_changes": true
}
}Tags
x402
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