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

# Download OpenAPI

> Machine-readable A2A skill catalog for customers and partners.

# Download OpenAPI

| File                            | Description                                  |
| ------------------------------- | -------------------------------------------- |
| [`a2a.json`](/openapi/a2a.json) | OpenAPI 3.1 — **customer-facing** A2A skills |

Import into Postman or Insomnia, or use the collection described under [Samples](/samples).

<Warning>
  Operations are listed under documentation paths `/a2a/...`. **Production traffic is only** `POST /rpc` with a JSON-RPC body (`method` + `params`). Do not call `/a2a/...` as REST on the platform.
</Warning>

Browse generated skill pages under the **API Reference** tab.

## Next steps

* [API Reference overview](/api-reference)
* [Samples](/samples)
* [Authentication](/authentication)