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

# Developer quickstart

> Choose an integration path first, then continue into the specific SDK, Backend API, or MCP docs.

If this is your first ActionX integration, do not start with the parameter tables. Use this page to confirm your integration path first.

```mermaid theme={null}
flowchart LR
    key["Get api_key"] --> choose["Choose integration path"]
    choose --> sdk["SDK"]
    choose --> api["Backend API"]
    choose --> mcp["MCP"]
    sdk --> request["Make a minimal request"]
    api --> request
    mcp --> request
    request --> render["Render or consume result"]
    render --> track["Verify tracking"]
```

## The three common integration paths

<Columns cols={3}>
  <Card title="SDK" href="/developers/sdk-integration">
    Best when the frontend directly renders recommendation cards, placements, or enhanced content results.
  </Card>

  <Card title="Backend API" href="/developers/api-overview">
    Best when the backend requests and orchestrates results centrally, then passes them to the frontend.
  </Card>

  <Card title="MCP" href="/developers/mcp-integration">
    Best for AI clients, workflow platforms, and agent runtimes that already support MCP.
  </Card>
</Columns>

## The shortest path to first integration

1. Complete publisher onboarding and obtain an `api_key`
2. Choose the integration path that fits your product
3. Make one minimal request
4. Confirm that the result is served and tracking works

## Next steps

* Read [API Overview](/developers/api-overview) if you want to understand the integration surfaces first.
* Read [SDK Integration](/developers/sdk-integration) if you want to start directly with frontend integration.
* Read [MCP Integration](/developers/mcp-integration) if you want an MCP-based setup.