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How to install Langchain MCP Adapters in Codex

To install Langchain MCP Adapters in Codex, run "codex mcp add langchain-mcp-adapters -- npx -y langchain-mcp-adapters" in your terminal, then type /mcp in Codex to check it.

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  1. 1

    Run the install command

    In a terminal, run:

    codex mcp add langchain-mcp-adapters -- npx -y langchain-mcp-adapters
  2. 2

    Check it

    Inside Codex, type /mcp to see the server and its tools.

MCP servers run with your permissions. If Langchain MCP Adapters needs an API key, add it under env in the config. Check its README.

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Questions

Does Langchain MCP Adapters work in Codex?

Yes. Codex supports mcp servers in the codex cli and ide extension, and Langchain MCP Adapters installs with the steps above.

Langchain MCP Adapters does not show up in Codex. What now?

Restart Codex fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is Langchain MCP Adapters safe?

It scores 91 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.