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MCP Server Tool Gateway Workflow

MCP Server Tool Gateway Workflow

MCP Server Tool Gateway Workflow

MCP server workflow that exposes a set of external tools for use by AI agents via structured tool calls.

  • eng
  • n8n, Docker, Linux Ubuntu
  • n8n

This workflow implements an MCP (Model Context Protocol) server that acts as a centralized gateway for external tool execution. It exposes a collection of tools that can be invoked by connected AI agents through structured MCP requests.

The server provides access to multiple capabilities, including calendar operations, email sending, spreadsheet read/write actions, basic calculations, and vector database interactions. Each tool is implemented as a discrete operation and is executed only when explicitly requested by a connected client.

Embedding and vector storage functionality is included to support retrieval-based use cases, allowing agents to store or query contextual data when needed. The MCP server itself remains stateless with respect to reasoning and decision-making, focusing purely on execution.

The workflow is designed to keep tool access centralized and controlled, separating external system interactions from agent-side reasoning and orchestration.