> ## 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.

# API Reference overview

> Full catalog of customer A2A skills (OpenAPI) — browse the sidebar by module.

# API Reference

BizBionic exposes customer **A2A skills** via JSON-RPC.

* **Wire (production):** always `POST https://app.bizbionic.com/rpc` with `method` + `params`
* **Sidebar:** open the **API Reference** tab — skills are grouped by module (`partner`, `campaigns`, `billing`, …)
* **Catalog file:** [Download OpenAPI](/openapi/download)

<Note>
  Paths like `/a2a/partner/send` in the OpenAPI catalog are **documentation-only** so each skill can have its own page. They are **not** REST routes. Copy the JSON-RPC example into `POST /rpc`.
</Note>

## Highlights

| Skill                    | Purpose                                          |
| ------------------------ | ------------------------------------------------ |
| `agent.provision`        | Create account + key                             |
| `messages.send`          | 1:1 SMS                                          |
| `contacts.import`        | Bulk import (≤500)                               |
| `sources.*`              | CRM/list connect + sync                          |
| `partner.send`           | Multi-customer send (`idempotency_key` required) |
| `billing.balance`        | Credits                                          |
| `compliance.setupStatus` | Trust readiness                                  |

## Next steps

* Browse skills in the **API Reference** tab (sidebar by module)
* [Errors](/errors)
* [Download OpenAPI](/openapi/download)
* [Samples](/samples)