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

# API Reference

> Interactive API playground generated from OpenAPI.

The API reference is generated from `openapi.yaml`.

<CardGroup cols={2}>
  <Card title="Authentication" icon="key" href="/authentication">
    All public API endpoints use the `api-key` header.
  </Card>

  <Card title="Networks" icon="network" href="/networks">
    Use `network` to select Solana or an EVM chain.
  </Card>
</CardGroup>

<Info>
  Endpoint pages under this section are generated by Mintlify from the OpenAPI spec, so the playground, request body fields, response schemas, and examples stay tied to the API contract.
</Info>