---
name: app-configuration-ac-cipher
title: TLS cipher support
description: 'App Configuration API endpoints support only TLS version >= 1.2. Additionally App Configuration API end points allows only the following cipher suites:'
last-updated: 2023-02-21
---

> ## Documentation Index
> The table of contents for this documentation set is at https://cloud.ibm.com/docs/app-configuration?format=markdown
> The index for all IBM Cloud docs is at: https://cloud.ibm.com/docs/llms.txt
> Use these files to discover more information as needed.

# TLS cipher support
{: #ac-cipher-support}

App Configuration API endpoints support only TLS version >= 1.2. Additionally App Configuration API end points allows only the following cipher suites:
{: shortdesc}

- `ECDHE-ECDSA-AES256-GCM-SHA384`
- `ECDHE-RSA-AES256-GCM-SHA384`
- `ECDHE-ECDSA-AES128-GCM-SHA256`
- `ECDHE-RSA-AES128-GCM-SHA256`