---
title: "bird workspace mtls certificate-authorities list"
description: "List mTLS certificate authorities"
canonical: "https://bird.com/docs/cli/reference/workspace-mtls-certificate-authorities-list"
---

# `bird workspace mtls certificate-authorities list`

## Usage

```bash
bird workspace mtls certificate-authorities list [flags]
```

## Description

Lists the certificate authorities that the mTLS endpoint trusts for this workspace, with the subject, SHA-256 fingerprint and validity period of each. A workspace has at most two.

## Examples

```bash
bird workspace mtls certificate-authorities list
```

## Options

| Name                | Description                                      |
| ------------------- | ------------------------------------------------ |
| `--response-schema` | Print the fields this command returns, then exit |

## Related

| Name                                                                                                                      | Description                          |
| ------------------------------------------------------------------------------------------------------------------------- | ------------------------------------ |
| [`bird workspace mtls certificate-authorities create`](/docs/cli/reference/workspace-mtls-certificate-authorities-create) | Add an mTLS certificate authority    |
| [`bird workspace mtls certificate-authorities delete`](/docs/cli/reference/workspace-mtls-certificate-authorities-delete) | Remove an mTLS certificate authority |
| [`bird workspace mtls certificate-authorities get`](/docs/cli/reference/workspace-mtls-certificate-authorities-get)       | Get an mTLS certificate authority    |

## Related resources

- [Should I use a Bird SDK or call the API directly?](/explained/platform/should-i-use-an-sdk-or-call-the-api-directly) (answer)
- [Build your first integration](/learn/paths/integration) (course)
- [Send your first email](/docs/get-started/send-your-first-email) (docs)

[Get an implementation brief](/learn/workspace?topic=api-basics)