Connect Codex to OneStop

Use the Codex MCP command to add OneStop:

codex mcp add onestop --url https://api.onestop.sh/mcp

When Codex opens the browser approval step, sign in to OneStop, choose the workspace for this connection, and approve the agent identity shown in the browser.

Return to Codex and ask it to search OneStop for a simple product query. If it returns marketplace listings, the connection is ready.

If Codex cannot reach OneStop after approval, remove the saved OneStop MCP server in Codex, add it again, and complete a fresh browser approval step.