SpecGuardian API validator that works
Validate API requests & responses against your OpenAPI spec
What is SpecGuardian API validator that works?
It's an OpenAPI 3.x reverse proxy that validates HTTP requests and responses against your spec. Invalid requests get rejected with 422, bad upstream responses return 502 — all with structured RFC 7807 error details showing exactly which field failed and why. Drop it in front of any REST API. No code changes needed.
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