Connect Codex

1. Put your API key in an environment variable, for example in your shell profile:

   export HARMONY_API_KEY="harmony_pk_..."

2. Add the Harmony server:

   codex mcp add harmony --url https://api.harmony.ai/api/mcp \
     --bearer-token-env-var HARMONY_API_KEY

3. Start Codex and ask: "List my Harmony workflows."

Codex saves the server in ~/.codex/config.toml and reads the key from HARMONY_API_KEY, so start Codex from a shell where it's set. If your Account is in the EU, use https://api.eu.harmony.ai/api/mcp.