Codex CLI

Codex CLI supports remote MCP servers over Streamable HTTP.

Add the server

codex mcp add olympus --url https://mcp.olympusdao.finance/mcp

Or add it directly to ~/.codex/config.toml:

[mcp_servers.olympus]
url = "https://mcp.olympusdao.finance/mcp"

Optional: your own upstream keys

Add an [mcp_servers.olympus.http_headers] sub-table to use your own upstream API keys. See Bring your own keys.