> ## Documentation Index
> Fetch the complete documentation index at: https://docs.langchain.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Terminate Session

> Implemented according to the Streamable HTTP Transport specification.
Terminate an MCP session. The server implementation is stateless, so this is a no-op.





## OpenAPI

````yaml /langsmith/agent-server-openapi.json delete /mcp/
openapi: 3.1.0
info:
  title: LangSmith Deployment
  version: 0.1.0
servers: []
security: []
tags:
  - name: Assistants
    description: An assistant is a configured instance of a graph.
  - name: Threads
    description: A thread contains the accumulated outputs of a group of runs.
  - name: Thread Runs
    description: >-
      A run is an invocation of a graph / assistant on a thread. It updates the
      state of the thread.
  - name: Stateless Runs
    description: >-
      A run is an invocation of a graph / assistant, with no state or memory
      persistence.
  - name: Crons
    description: >-
      A cron is a periodic run that recurs on a given schedule. The repeats can
      be isolated, or share state in a thread
  - name: Store
    description: >-
      Store is an API for managing persistent key-value store (long-term memory)
      that is available from any thread.
  - name: A2A
    description: >-
      Agent-to-Agent Protocol related endpoints for exposing assistants as
      A2A-compliant agents.
  - name: MCP
    description: >-
      Model Context Protocol related endpoints for exposing an agent as an MCP
      server.
  - name: System
    description: System endpoints for health checks, metrics, and server information.
paths:
  /mcp/:
    delete:
      tags:
        - MCP
      summary: Terminate Session
      description: >+
        Implemented according to the Streamable HTTP Transport specification.

        Terminate an MCP session. The server implementation is stateless, so
        this is a no-op.

      operationId: delete_mcp
      responses:
        '404':
          description: Session not found

````