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Cloudflare Fundamentals - Service Key authentication deprecated

DeprecationUnverifiedAdded Sep 24, 2026

Service Key authentication for the Cloudflare API is deprecated. Service Keys will stop working on September 30, 2026. API Tokens replace Service Keys with fine-grained permissions, expiration, and revocation. What you need to do Replace any use of the X-Auth-User-Service-Key header with an API Token scoped to the permissions your integration requires.

Topics: Security, Developer tools

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