> For the complete documentation index, see [llms.txt](https://docs.snyk.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.snyk.io/scan-fix-and-prevent/scan-with-snyk/snyk-api-web/configure-targets/configure-authentication/configure-mutual-tls.md).
# Mutual TLS
How to configure mutual TLS for Snyk API & Web targets
{% hint style="info" %}
**Snyk is rolling out a new navigation.** The steps on this page describe the classic interface. If your view looks different, visit [Navigate the Snyk Web UI](https://docs.snyk.io/navigate-the-snyk-web-ui#where-things-moved) to map these options to the new interface.
{% endhint %}
## Mutual TLS
Configure mutual TLS (mTLS) authentication for targets that require client-side certificates.
Unlike standard TLS, which authenticates only the server, mutual TLS is an enhanced security protocol where both the client and server authenticate using digital certificates.
### Prerequisites
* You must have the **change target settings** permission
* You must have your client authentication certificate (`.p12` or `.pfx` format)
* You must have the corresponding certificate password
* Your account plan must include this feature
### Upload the certificate
1. Navigate to the **Targets** page.
2. Click the **gear icon** to access the target settings.
3. Select the **Authentication** tab and locate the **Client Authentication Certificate** section.
4. Upload your `.p12` or `.pfx` certificate file.
5. Enter the **Certificate Password** required to decrypt the file.
6. Click **Save**.
### Verify the configuration
After you save the configuration, mutual TLS authentication is enabled. The next scan against this target automatically uses the configured mTLS certificates.
Important: For your security, Snyk obfuscates all sensitive fields (certificates and passwords) after saving. You cannot view or retrieve them again.
### Manage the configuration
You can manage these settings anytime from your target's **Authentication** tab:
* To temporarily disable the setting, use the **Off/On** toggle
* To permanently remove the configuration, use the **Delete** button
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.
Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:
```
GET https://docs.snyk.io/scan-fix-and-prevent/scan-with-snyk/snyk-api-web/configure-targets/configure-authentication/configure-mutual-tls.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
