Install Twitter Signal in Codex

What you need first

• Codex, installed.
• Node.js, which gives the npx command the server starts with.
• Your own values for YOUR_CDP_API_KEY_ID,YOUR_CDP_API_KEY_SECRET,YOUR_CDP_WALLET_SECRET.

Steps

1. Run this in a terminal. It writes the server into ~/.codex/config.toml, which the Codex CLI, its IDE extension and the ChatGPT desktop app share.

codex mcp add twitter-signal-mcp --env CDP_API_KEY_ID=YOUR_CDP_API_KEY_ID --env CDP_API_KEY_SECRET=YOUR_CDP_API_KEY_SECRET --env CDP_WALLET_SECRET=YOUR_CDP_WALLET_SECRET -- npx -y [email protected]

2. Replace YOUR_CDP_API_KEY_ID,YOUR_CDP_API_KEY_SECRET,YOUR_CDP_WALLET_SECRET with your own values.
3. Start Codex again and type /mcp: the server is listed.

Check it worked

Ask Codex: List the tools of twitter-signal-mcp.

If it does not start

spawn npx ENOENT

Node.js is not on the PATH that Codex sees. Install it, or write the full path of npx in the config.

The server starts, but its tools fail

A YOUR_… placeholder is still in the config, or its value is wrong.