Codex: Set up the Visily MCP server

Codex: Set up the Visily MCP server

Connect Codex directly to the Visily MCP server (no plugin).

Before you start

  1. The Visily MCP works only on workspaces on a Pro or Business plan where you are the workspace creator or have an editor license. Free workspaces and viewer/guest roles are not supported.
  2. Server URL: https://app.visily.ai/api/mcp

Add the server

Codex talks to remote (HTTP) MCP servers through its experimental rmcp client. Add the server to ~/.codex/config.toml:
Quote
[mcp_servers.visily]
experimental_use_rmcp_client = true
Notes
The experimental_use_rmcp_client flag is required for Codex to use the streamable-HTTP transport.

Authenticate (OAuth)

Restart Codex or start a new thread so the config is picked up, then:
Quote
codex mcp login visily --scopes workspaces:read,boards:read,elements:read,design:read
Complete the OAuth login in your browser and approve the scopes. Once connected, the Visily tools (list_boards, get_design_context, …) are available.

Verify

Quote
codex mcp list   # confirm the "visily" MCP server is configured

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