mcpbeat

langchain MCP Server

io.github.doc2mcp/langchain
not responding

langchain is listed as active in the registry but did not answer our last check. Last commit 2 Aug 2026.

MCP server for langchain documentation, generated by doc2mcp.

Uptime history 40 hours of history · worst hour 0%
40 hours agonow
5.5%
Uptime 24h
5 of 91 checks
—
Tools
hidden behind auth
1161 ms
Response time
average over 24h
3
Stars
last commit 2 Aug 2026

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add langchain --transport http https://doc2mcp.site/api/mcp/0cd2635e-0cd5-4712-b33c-13b10c547e42/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "langchain": {
      "url": "https://doc2mcp.site/api/mcp/0cd2635e-0cd5-4712-b33c-13b10c547e42/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.langchain]
url = "https://doc2mcp.site/api/mcp/0cd2635e-0cd5-4712-b33c-13b10c547e42/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "langchain": {
      "url": "https://doc2mcp.site/api/mcp/0cd2635e-0cd5-4712-b33c-13b10c547e42/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "langchain": {
      "url": "https://doc2mcp.site/api/mcp/0cd2635e-0cd5-4712-b33c-13b10c547e42/mcp"
    }
  }
}

Endpoints

URLTransportStateLatencyChecked
https://doc2mcp.site/api/mcp/0cd2635e-0cd5-4712-b33c-13b10c547e42/mcp streamable-http answering 80 ms 11 min ago

langchain — questions

Answers built from our own checks of this server.

Is langchain working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 5 of 91 checks got a reply (5.5%), average response time 1161 ms. The bar chart above shows every period we have measured.
The registry lists langchain as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect langchain?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does langchain need an API key?
No. langchain completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.
How fast is langchain?
It answers our handshake in 1161 ms on average, which is faster than 3% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is langchain open source?
Yes — it is published under the MIT licence, written in TypeScript, 3 stars on GitHub and 83 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.