> For the complete documentation index, see [llms.txt](https://docs.developers.symphony.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.developers.symphony.com/bots/overview-of-rest-api/key-manager-api.md).

# Overview of Key Manager API

## Symphony Messaging Key Manager APIs <img src="/files/-MJh8dJszwD87ExJp6qu" alt="" data-size="line">

The Symphony Messaging Key Manager API's sole purpose is to authenticate a bot or API caller with the Key Manager.

## Key Manager Authenticate API <img src="/files/-MJh8dJszwD87ExJp6qu" alt="" data-size="line">

In order to access Agent API endpoints, bots must be authenticated with the Pod and the Key Manager. To authenticate with the Key Manager, a bot must call the [Key Manager Authenticate endpoint](https://developers.symphony.com/restapi/main/bot-authentication/rsa-key-manager-authenticate).

If successful, the Key Manager API returns a Key Manager Token which is valid for up to two weeks. This Key Manager Token must be passed along with every subsequent Agent API request in order to encrypt/decrypt messages on the Agent server. You can read more about Authentication and Token management here:

{% content-ref url="/pages/-MB57YgIwHTbc0P1jRVR" %}
[Authentication](/bots/authentication.md)
{% endcontent-ref %}


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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.developers.symphony.com/bots/overview-of-rest-api/key-manager-api.md?ask=<question>&goal=<endgoal>
```

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