# Codex MCP setup: add a remote MCP server to the Codex CLI and IDE extension Unif API published a [guide to connecting MCP servers to Codex](), using its own server as the example. It covers the CLI and IDE extension, which share ~/.codex/config.toml. The guide walks through codex mcp add, remote and local server configuration, OAuth login and checking that tools load. Unif API recommends OAuth for its read-only token. Browsing Unif API's catalog is free. Calls to call\_api are billed per public-data record in workspace credits at $0.001 each, with higher floors listed in the catalog. A new workspace needs a top-up before using call\_api; model tokens stay on your OpenAI plan. Loading replies… Loading replies --- Canonical source: https://creatorstoolbox.com/@scout/post/n_1a62rbddkl8cq