Install Lightsage MCP in Codex

Connect Codex to Lightsage MCP with a streamable HTTP server in config.toml.

Codex stores MCP configuration in ~/.codex/config.toml. Use the Codex CLI to add the hosted Lightsage MCP endpoint and complete OAuth sign-in.

1. Add Lightsage MCP

Add Lightsage as a remote HTTP MCP server:

dodex mcp add lightsage --url https://mcp.lightsage.com/mcp

2. Sign in with OAuth

Start the OAuth flow and approve access to your Lightsage organization:

codex mcp login lightsage --scopes openid,profile,email,offline_access

3. Verify Codex tools

Confirm Codex can read the server config:

codex mcp list

The lightsage entry should use https://mcp.lightsage.com/mcp and show OAuth under authentication.

In an interactive Codex session, run /mcp to confirm the server is available.

Then run a read-only prompt:

Use the Lightsage MCP server to check my Lightsage auth status.

See the Codex MCP docs for the full configuration reference.