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OpenAPI Diff Endpoint
x402
OpenAPI Diff Endpoint is a paid API for AI agents from agent-json-reliability.onrender.com, paid per call via x402, $0.0075/call, status unknown (last checked 2026-10-01).
Compares two OpenAPI specifications and returns a structured diff of their differences
Price / call$0.0075
Success—
StatusUnknown
How this service works
Deterministic JSON repair and JSON Schema validation for AI agents. Free MCP, inspect, validate, repair. Paid POST /v1/json/reliable 0.003 USDC via x402 on Base.
Output
A structured diff indicating which endpoints were added, removed, or modified between two OpenAPI specifications, including schema-level changes and potential breaking change flags. Returns {ok: true} with diff details on success.
Example use cases
Detect breaking API changes before release
“I'm about to ship a new API version. Can you diff my old OpenAPI spec against the new one and flag any breaking changes that might affect existing clients?”
Audit API evolution between versions
“We upgraded from v1 to v2 of our payment API. Can you compare the two OpenAPI specs and give me a summary of everything that was added, removed, or modified?”
Validate backward compatibility for third-party integrations
“My team changed some response schemas in our API. Can you run a diff on the OpenAPI specs before and after to check if any of those changes would break third-party integrations?”
Technical details
Endpoint
POSThttps://agent-json-reliability.onrender.com/v1/api/openapi-diff?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a deterministic, programmatic diff of two OpenAPI specifications — particularly when checking for breaking changes before deploying a new API version or integrating with a third-party API that has been updated. Prefer this over manual review or general-purpose JSON diffing tools when the semantic structure of OpenAPI matters (e.g. endpoint-level vs schema-level changes).
Side effects
- Invalid or malformed OpenAPI spec input returns a validation error
- Specs with circular references may cause incomplete diffs
- Payment not included or insufficient USDC balance returns 402
- Large or deeply nested schemas may produce verbose or truncated output
- Mismatched OpenAPI versions (e.g. 2.0 vs 3.0) may limit comparison accuracy
Output
Schema · Response
{
"example": {
"ok": true
}
}Tags
x402
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