How to install Server Sequential Thinking in Codex

To install Server Sequential Thinking in Codex, run "codex mcp add server-sequential-thinking -- npx -y @sequentialthinking/server-sequential-thinking" in your terminal, then type /mcp in Codex to check it.

Built from the published package · server updated 2 days ago

Run the install command

In a terminal, run:

codex mcp add server-sequential-thinking -- npx -y @sequentialthinking/server-sequential-thinking

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

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

Install Server Sequential Thinking in another app

Claude Code Claude Desktop Cursor VS Code Windsurf Gemini CLI Antigravity CLI ChatGPT

Questions

Does Server Sequential Thinking work in Codex?

Yes. Codex supports mcp servers in the codex cli and ide extension, and Server Sequential Thinking installs with the steps above.

Server Sequential Thinking 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 Server Sequential Thinking safe?

It scores 85 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.