---
title: "Discovery via 405 (POST-only endpoint)"
method: GET
path: "/api/mcp"
---

# Discovery via 405 (POST-only endpoint)

`GET /api/mcp`

## Request

- Base URL: `https://api.signalbureau.ai`
- URL: `https://api.signalbureau.ai/api/mcp`
- Auth: none declared

## Other responses

- `405`: Method Not Allowed — this endpoint is POST-only (MCP Streamable HTTP, stateless JSON; no standalone SSE stream). The 405 body still carries server name, supported protocol versions, and tool names for human discovery, plus an `allow: POST` header.

---

[API](https://skmtc.dev/sigb/apis/signal-bureau-api.md) · [All operations](https://skmtc.dev/sigb/apis/signal-bureau-api/llms.txt) · [OpenAPI document](https://skmtc.dev/sigb/apis/signal-bureau-api/revisions/290c9c6ca0d0?raw)