# Web API

> Every public endpoint of the DS Server Web API by group: DocumentProcessing, OAuth, Administration, Licensing and Authentication Server, with payloads.

- **Product:** DS Server
- **Section:** Documentation
- **Kind:** Topic
- **Path:** DS Server > API Reference > Web API
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/web-api/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/web-api/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/web-api/llms-full.txt

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## In This Section

- [Administration](https://docs.textcontrol.com/ds-server/reference/web-api/administration/llms.txt): Change the admin password, add and delete security profiles and authentication servers, and switch OAuth on or off with the DS Server Administration endpoints.
- [Authentication Server](https://docs.textcontrol.com/ds-server/reference/web-api/authenticationserver/llms.txt): Request access tokens and authorization codes, never forwarded, with the Authentication Server endpoints that DS Server calls on its authentication servers.
- [DocumentProcessing](https://docs.textcontrol.com/ds-server/reference/web-api/documentprocessing/llms.txt): Convert, merge, append and inspect documents, create PDFs, read PDF attachments, metadata and form fields, and create barcodes with DocumentProcessing.
- [Licensing](https://docs.textcontrol.com/ds-server/reference/web-api/licensing/llms.txt): Register, renew and unregister DS Server online with a serial number or locally with a license string, validate serial numbers and create license requests.
- [OAuth](https://docs.textcontrol.com/ds-server/reference/web-api/oauth/llms.txt): Request access tokens with the authorization code, client credentials or refresh token grant, validate tokens and test access with the OAuth endpoints.

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## Nearby

- **Previous:** [API Reference](https://docs.textcontrol.com/ds-server/reference/llms.txt)
- **Next:** [DocumentProcessing](https://docs.textcontrol.com/ds-server/reference/web-api/documentprocessing/llms.txt)