---
title: "GET /api/mcp - Open SSE stream for server-initiated messages."
method: GET
path: "/api/mcp"
tags: ["mcp"]
---

# GET /api/mcp - Open SSE stream for server-initiated messages.

`GET /api/mcp`

Opens a Server-Sent Events stream for receiving server-initiated
JSON-RPC messages (notifications, requests from server).

## Response `200`

SSE stream for server-initiated messages

## Other responses

- `400` — Mcp-Session-Id header required
- `401` — Authentication required
- `403` — Invalid origin
- `404` — Session not found

---

[API](https://skmtc.dev/eyevinn/apis/strom-api.md) · [All operations](https://skmtc.dev/eyevinn/apis/strom-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/eyevinn/strom-api/revisions/0df7ca64263f/schema)