Langflow MCP Client for coding agents

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Connect coding agents such as Bob (IBM) and Claude Code to a Langflow instance so they can build and run flows over MCP.

This page describes the <Icon name="Terminal" aria-hidden="true"/> Langflow MCP Client entry in Settings. It is different from Langflow's other MCP options.

• Use Langflow as an MCP client: Use the MCP Tools component in flows so agent components on the canvas can call external MCP servers or Langflow MCP URLs.
• Use Langflow as an MCP server: Use the MCP Servers page in Langflow to expose your Langflow project as an MCP server to desktop clients such as Cursor or Windsurf.

Connect Bob (IBM) or Claude Code

To connect Langflow to a coding agent, do the following:

1. Click your profile icon, select Settings, and then click <Icon name="Terminal" aria-hidden="true"/> Langflow MCP Client.

2. Select the coding agent you want to connect to Langflow, and follow the steps shown in the UI.

   All client configurations run lfx-mcp with uvx, and set LANGFLOW_SERVER_URL to your Langflow server URL and LANGFLOW_API_KEY to a Langflow API key of your choice.

   • To connect to Bob (IBM), paste the configuration JSON into ~/.bob/settings/mcp_settings.json, or use Edit Project MCP for a project-only setup.
   • To connect to Claude Code, run the claude mcp add command shown on the page, or manually add the JSON configuration to ~/.claude.json.

   If you do not set LANGFLOW_API_KEY, the coding agent can log in with the Langflow username and password you use to sign in to the Langflow web UI for that server.

See also

• Use Langflow as an MCP client
• Use Langflow as an MCP server
• MCP Tools component