> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.auxiliar.ai/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.auxiliar.ai/_mcp/server.

# Auxiliar

Auxiliar provides a single API key that grants access to multiple tools through a unified interface, eliminating the need for you and your AI agents to create separate accounts for each service provider.

## Why use it

Give AI agents instant access to multiple tools so they can complete tasks for you end-to-end.

Transparent and consolidated billing, regardless of how many tools you use.

Reduce your switching costs between similar service providers, whether you're testing or in production.

Auxiliar works directly with providers to offer higher rate limits and more throughput.

## Tools

| Tool                                                   | Prefix                                  | What it does                                             | Methods                          |
| ------------------------------------------------------ | --------------------------------------- | -------------------------------------------------------- | -------------------------------- |
| [Serper](https://serper.dev)                           | [`/serper[/<endpoint>]`](/serper)       | Google SERP across every vertical, plus webpage scraping | `GET`, `POST`                    |
| [ScraperAPI](https://scraperapi.com)                   | [`/scraperapi`](/scraperapi)            | General-purpose web scraping                             | `GET`, `POST`, `PUT`             |
| [SerpApi](https://serpapi.com)                         | [`/serpapi`](/serpapi)                  | Search engine results                                    | `GET`                            |
| [ElevenLabs](https://elevenlabs.io/docs/api-reference) | [`/elevenlabs/<api path>`](/elevenlabs) | Text-to-speech, voices, models, ConvAI, and more         | `GET`, `POST`, `PATCH`, `DELETE` |

## How it works

Sign up for Auxiliar and generate a single key — no separate account or key for each provider.

Use `https://api.auxiliar.ai` as the base URL and send your key as a bearer token: `Authorization: Bearer <your-key>`.

Use each tool exactly as its own docs describe — same paths, parameters, and responses.

## Base URL

```
https://api.auxiliar.ai
```

## Next steps

Make your first authenticated call in under a minute

How bearer tokens work and what the `401` means

Every route, parameter, and response