# /admin/authenticationservers

> The /admin/authenticationservers endpoint of the DS Server Web API and its GET and POST methods, which list and register the servers that validate tokens.

- **Product:** DS Server
- **Section:** Documentation
- **Kind:** Endpoint
- **Path:** DS Server > API Reference > Web API > Administration > /admin/authenticationservers
- **163 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/llms-full.txt

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This endpoint offers the following methods.

| Method | Endpoint | Description |
|---|---|---|
| [`GET`](https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/get/llms-full.txt) | [/admin/authenticationservers](https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/get/llms-full.txt) | Gets an array of existing authentication server IDs. |
| [`POST`](https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/post/llms-full.txt) | [/admin/authenticationservers](https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/post/llms-full.txt) | Adds a new authentication server. |

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## In This Section

- [GET /admin/authenticationservers](https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/get/llms-full.txt): List the IDs of the authentication servers, the DS Server instances asked to validate access tokens this instance didn't issue, or an empty array if none.
- [POST /admin/authenticationservers](https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/post/llms-full.txt): Register another DS Server instance as an authentication server with a name and serverUrl; the values aren't checked and the response is the new server's ID.

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## Nearby

- **Previous:** [POST /admin/oauth](https://docs.textcontrol.com/ds-server/reference/web-api/administration/oauth/post/llms-full.txt)
- **Next:** [GET /admin/authenticationservers](https://docs.textcontrol.com/ds-server/reference/web-api/administration/authenticationservers/get/llms-full.txt)