HTTP Idempotency-Key Header Auditor
Audits API mutation requests for Idempotency-Key header presence and UUID v4 format compliance.
Notice: engineering verification utility. Use test or de-identified data and verify results independently before relying on them.
How it works
Standard: RESTful API Design & Idempotent Transaction Best Practices
Formula: Match UUID v4 pattern for Idempotency-Key header value
Checks: Valid UUID v4 string
Calculated locally in browser memory; nothing leaves your browser.
Deterministic local-first client-side execution. Provided as-is without warranty.