> ## Documentation Index
> Fetch the complete documentation index at: https://anything.notte.cc/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Anything API

> An API for the entire internet.

## What is Anything API

Some of the internet offers a nice API that ~~developers~~ AI agents build on top of. That one service you needed to automate or scrape today? No API. [Anything API](https://anything.notte.cc/) is the API for the rest of the internet. Use prebuilt endpoints for sites that were never API-native, and build your custom ones when [our nice catalog](http://anything.notte.cc/marketplace) comes up short.

## Who is this for

Anyone who badly needs an API that doesn't exist, and don't want to burn an afternoon and \$100 in tokens building one, plus the painful maintenance to keep prod alive.

## How does it works

Anything API turns a website into a strongly typed endpoint you call over plain HTTPS. Build once, in the app or over MCP, then call it from your code. Endpoints do more than read: they scrape (search, list, fetch structured data) and they act (login, submit forms, run multi-step flows), so anything you could do in a browser can become an API.

## Relationship to Notte

We host and run everything on [Notte](https://www.notte.cc/). The APIs are deployed as a Notte Function, and anything browser-related runs in a Notte Browser sessions with global residential proxies and captcha solving capabilities when we need those to automate the site.

## Calling an API

Every API endpoint you build gets one `function_id` you invoke with a Notte API key:

```bash theme={"system"}
curl \
--location 'https://api.notte.cc/functions/{function_id}/runs/start' \
--header 'Authorization: Bearer YOUR_NOTTE_API_KEY' \
--header 'Content-Type: application/json' \
--data '{"function_id": "{function_id}", "variables": {}}'
```

```json theme={"system"}
{
  "status": "closed",
  "result": {}
}
```

Your data is in `result` matching the schema on the API's page. Python and TypeScript SDKs do the same thing in one call. Do not hand-copy the snippet above: every API page renders it with your real id, parameters, and defaults already filled in. See [Calling an API](/docs/run).

## Building an API

Go to the [app](https://anything.notte.cc/) and prompt what you need.

The agent captures your intent, settles the spec signature (what goes in, what comes out), explores the site, reverse engineers how it actually serves its data, and deploys an endpoint tailored to your use case. It is a conversation, so you shape the API as it goes: rename a parameter, add a field, change a type. Expect 2 to 10 minutes.

You can also build via the API or MCP. See [Building an API](/docs/build).

## Self-healing APIs

Every API hosted on Anything API self-heals. A failed invocation wakes an agent to bugfix the API, re-maps the site and ships a new version in minutes, so your next call works. We're working on proactive self-healing as well (fixes before you call the API). TBD.

## Authenticated sites

Anything API also works with Authenticated websites using Notte Profiles. Simply put, profiles let you authenticate once in a website manually on Notte, and save your cookies. That way, any further run will be pre-authenticated. APIs to authenticated website will have a Notte Profile ID as one of the input variables.

## MCP for AI Agents

Anything API is agent-first. The entire Anything API app is accessible via an MCP server exposing 5 simple tools. This allows anyone building agentic stuff to supercharge their product with immediate access to the Internet API with a single MCP checkin.

| Tool      | Auth      | What it does                                         |
| --------- | --------- | ---------------------------------------------------- |
| `search`  | public    | Find APIs by description, site, or category          |
| `spec`    | public    | Full parameter and response schema for one API       |
| `run`     | signed in | Execute an API and return its JSON result            |
| `build`   | signed in | Describe a new API and get it back (2 to 10 minutes) |
| `publish` | signed in | List one of your own APIs on the marketplace         |

[Setup the MCP](/docs/mcp-server) in 30 seconds now.

## Need help?

Shoot us an email: [support@notte.cc](mailto:support@notte.cc)