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API Shield™

Cloudflare API Shield allows you to secure your APIs using the following security solutions:

  • Mutual TLS (mTLS) — Blocks traffic from devices that do not have a valid client SSL/TLS certificate with an API Shield rule.
  • Schema Validation — Protects your origin from invalid API requests or a malicious payload by matching each request with the provided schema.

For more details, see the full API Shield documentation.