---
title: "Set Endpoint Mtls Config"
method: PUT
path: "/api/v1/app/{app_id}/endpoint/{endpoint_id}/mtls"
tags: ["Endpoint"]
---

# Set Endpoint Mtls Config

`PUT /api/v1/app/{app_id}/endpoint/{endpoint_id}/mtls`

## Request

- Base URL: `https://api.eu.svix.com`
- URL: `https://api.eu.svix.com/api/v1/app/{app_id}/endpoint/{endpoint_id}/mtls`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/svix/apis/svix-api/docs/api/v1/app/:app_id/endpoint/:endpoint_id/mtls/put.ts> (a function with typed inputs; its response is checked against the schema)

Set endpoint mTLS configuration.

This operation is only available in the <a href="https://svix.com/pricing" target="_blank">Enterprise</a> plan.

## Path parameters

- `app_id` string, required: The Application's ID or UID.
- `endpoint_id` string, required: The Endpoint's ID or UID.

## Request body

- EndpointMtlsConfigIn
  - `identity` string, required: A PEM encoded private key and X.509 certificate to identify the webhook sender.

## Response `204`

no content

## Other responses

- `400`: Bad request
- `401`: Unauthorized
- `403`: Forbidden
- `404`: Not Found
- `409`: Conflict
- `422`: Validation Error
- `429`: Too Many Requests

## Changes

- **2026-11-09** `f2cb264ac18a`: 1 info
  - endpoint added
- **2026-08-19** `dc130bd1b074`: 1 breaking
  - api path removed without deprecation
- **2026-07-31** `16dbcc056c48`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/svix/apis/svix-api/changes/api/v1/app/:app_id/endpoint/:endpoint_id/mtls/put.md)

---

[API](https://skmtc.dev/svix/apis/svix-api.md) - [All operations](https://skmtc.dev/svix/apis/svix-api/llms.txt) - [OpenAPI document](https://skmtc.dev/svix/apis/svix-api/revisions/f2cb264ac18a?raw)