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Amazon API Gateway now supports mutual TLS for backend integrations

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AWS·Sep 8, 2026, 07:16 PMFeatureSecurity-relevantAI-assisted summary

Summary

API Gateway can now present ACM‑managed certificates to backend services, enabling mutual TLS for API‑to‑backend connections.
Certificate updates in ACM are automatically propagated to API Gateway with no redeployment or downtime.
Configuration is available via console, CLI, or CloudFormation across all commercial and GovCloud regions.

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Official source Last checked Sep 20, 2026, 3:04 PM

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