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salacoste/mcp-n8n-workflow-builder

⭐ 232 JavaScript repository created 2025-03-15

salacoste/mcp-n8n-workflow-builder is a JavaScript MCP server that exposes the n8n automation platform API to MCP clients such as Claude Desktop and Cursor, so workflows can be built and operated from a chat interface instead of the n8n editor or hand-written JSON. The README documents 17 tools covering the workflow lifecycle: eight workflow tools for listing, reading, creating, updating, deleting, activating and executing workflows, four execution tools for monitoring, retrying and analysing runs, five tag tools for organising workflows, and a further group of credential tools for inspecting credential schemas and creating credentials. A distinguishing feature is multi-instance support: a .config.json file declares several named environments, for example production, staging and development, each with its own n8n host and API key plus a default environment, and calls are routed to the named instance. A single instance can also be configured with the N8N_HOST and N8N_API_KEY environment variables for backward compatibility. Installation is through the npm package @kernel.salacoste/n8n-workflow-builder, registered in claude_desktop_config.json or .cursor/mcp.json as an npx command. Requirements are Node.js 14 or later, npm 7 or later and an n8n instance with API access, tested against n8n 1.82.3 and newer. The README shows usage patterns such as generating a webhook workflow that validates input, sends a welcome email and writes to PostgreSQL, listing active production workflows that have not run recently, and debugging a failing workflow by retrieving its execution history. It states that credentials are protected, API keys encrypted and sensitive values kept out of logs. A separate documentation site holds installation, configuration, multi-instance, API reference and troubleshooting material. The project suits teams that run n8n and want a coding assistant to manage workflows across environments.

https://github.com/salacoste/mcp-n8n-workflow-builder

n8nworkflow-automationmcp-serverjavascriptnpmmulti-instance

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