---
title: "Mcp Sse Messages"
method: POST
path: "/v1/mcp/messages"
tags: ["mcp"]
---

# Mcp Sse Messages

`POST /v1/mcp/messages`

## Request

- Base URL: `https://api.storyflo.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.storyflo.com/v1/mcp/messages`
- Auth: none declared

Receive a JSON-RPC 2.0 message for an open SSE session.

Returns 202 Accepted immediately; the JSON-RPC response is pushed
back over the SSE channel keyed by ``sessionId``. Bearer-token
enforcement matches POST /mcp/v1: anonymous discovery methods are
allowed when the kill-switch is on, ``tools/call`` always requires
a valid bearer.

## Query parameters

- `sessionId` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/storyflo/apis/storyflo-inference-router.md) · [All operations](https://skmtc.dev/storyflo/apis/storyflo-inference-router/llms.txt) · [OpenAPI document](https://skmtc.dev/storyflo/apis/storyflo-inference-router/revisions/c3a1a735ac7a?raw)