n8n-nodes-mcp-client

This n8n community node enables interaction with Model Context Protocol (MCP) servers within n8n workflows, facilitating AI model access to external tools and data. MCP standardizes AI model interactions with external resources. The node supports connecting to MCP servers, accessing resources, executing tools, and utilizing prompts.

Key Features:

• Installation: Follow the n8n community nodes installation guide.
• Credentials: Supports Command-line (STDIO) and Server-Sent Events (SSE) transports. STDIO uses commands, arguments, and environment variables. SSE uses a URL, optional message endpoint, and headers.
• Environment Variables: Pass variables to MCP servers via the credentials UI or Docker using the MCP_ prefix.
• Operations: Includes Execute Tool, Get Prompt, List Prompts, List Resources, List Tools, and Read Resource.
• Using as a Tool: Integrates with n8n AI Agents by setting N8N_COMMUNITY_PACKAGES_ALLOW_TOOL_USAGE to true.

The node is compatible with n8n v1.0.0+, MCP v1.0.0+, and supports both STDIO and SSE transports.