> ## Documentation Index
> Fetch the complete documentation index at: https://na-834f3010.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# API overview

> Session, API key, public catalog, and paid call auth.

| Surface                               | Auth                              |
| ------------------------------------- | --------------------------------- |
| Editor execute                        | Session                           |
| `POST /api/workflows/{id}/execute`    | Session or owner `Bearer wfb_...` |
| `GET /api/mcp/workflows`              | None (IP rate limit)              |
| `POST /api/mcp/workflows`             | Session (list / update / unlist)  |
| `POST /api/mcp/workflows/{slug}/call` | x402 receipt or owner API key     |

Write listings return an unsigned `{ to, data, value }` instruction unless the caller is the owner with an API key.