---
title: "Mcp Http Delete"
method: DELETE
path: "/v3/mcp/http"
tags: ["v3", "MCP"]
---

# Mcp Http Delete

`DELETE /v3/mcp/http`

Explicitly terminate an MCP HTTP session.

This endpoint allows clients to cleanly close their session and free
server resources. Part of the MCP Streamable HTTP transport spec.

Args:
    auth_api_key: API key authentication
    mcp_session_id: Required session ID from header
    mcp_protocol_version: MCP-Protocol-Version header (defaults to 2025-03-26 if absent)

Returns:
    204 No Content on success, 404 if session not found

## Headers

- `Mcp-Session-Id` string, required
- `MCP-Protocol-Version` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/definite/apis/defapi.md) · [All operations](https://skmtc.dev/definite/apis/defapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/definite/defapi/revisions/3943d8deb3be/schema)