Codex

Connect Sync GTM to Codex, OpenAI’s coding agent CLI.

Install

• Open ~/.codex/config.toml and add the Sync GTM server. The experimental_use_rmcp_client feature enables streamable-HTTP MCP servers:

[features]
experimental_use_rmcp_client = true
 
[mcp_servers.syncgtm]
url = "https://api.syncgtm.com/mcp"

• Start the browser sign-in:

codex mcp login syncgtm

• Your default browser opens the Sync GTM authorization page. Sign in and approve.
• Codex stores the session and connects on each run.

No bearer_token_env_var is needed — Sync GTM uses browser OAuth, not a static token.

Next steps

• Browse the available tools.
• See usage examples on the MCP overview.