n8n Integration with Flow Nexus via MCP

[ruvnet]

🚀 n8n Integration Implementation

Overview

Implemented n8n integration with Flow Nexus using the MCP (Model Context Protocol) for workflow orchestration and automation.

✅ Completed Tasks

• [x] Created n8n module structure in /mcp/flow-nexus-sse/n8n/
• [x] Configured Docker container with n8n and MCP support
• [x] Implemented MCP integration hooks for workflow conversion
• [x] Created validation scripts for testing integration
• [x] Successfully authenticated with Flow Nexus SSE server ([email protected])
• [x] Created and executed test workflows via MCP tools
• [x] Generated comprehensive documentation

📁 Implementation Files

• Dockerfile: Custom n8n image with MCP community nodes
• fly.toml: Fly.io deployment configuration
• mcp-integration.js: MCP integration hook for n8n
• run-validation.js: Validation script with authentication
• workflows/: Sample n8n workflows for testing

🔧 Configuration

app = "n8n-flow-nexus"
primary_region = "iad"
[env]
  N8N_PROTOCOL = "https"
  FLOW_NEXUS_URL = "https://mcp-flow-nexus.ruv.io"
  MCP_PROTOCOL_VERSION = "2025-06-18"

🧪 Testing Results

• ✅ Authentication with Flow Nexus SSE server successful
• ✅ Workflow creation via MCP tools working
• ✅ Workflow execution initiated successfully
• ⚠️ Workflow status check requires table migration
• ⚠️ Fly.io deployment has lease conflict (needs resolution)

📚 Documentation

Created comprehensive documentation at /docs/workflows/n8n-integration.md covering:

• Architecture overview
• Setup instructions
• Usage examples
• Troubleshooting guide

🐛 Known Issues

1. Fly.io Deployment Lease: Machine ID 148e7557a23ed8 has an active lease that needs to expire or be released
2. MCP Endpoint Discovery: The /mcp endpoint returns empty tools list when accessed directly (works via MCP tools)
3. Workflow Status Table: Missing workflow_system.workflow_executions table in schema

🔄 Next Steps

• [ ] Resolve Fly.io deployment lease issue
• [ ] Complete deployment to production
• [ ] Set up n8n webhook nodes for SSE events
• [ ] Create more complex workflow templates
• [ ] Implement bi-directional sync between n8n and Flow Nexus

🎯 Success Metrics

• Successfully authenticated with Flow Nexus
• Created workflow ID: 7993052f-afec-4317-937a-48e85aedcd67
• Workflow execution initiated and running
• MCP tools integration functional

📊 Technical Stack

• n8n: Workflow automation platform
• MCP: Model Context Protocol for AI integration
• Flow Nexus SSE: Server-sent events for real-time updates
• Docker: Containerization
• Fly.io: Cloud deployment platform

🔗 Related Resources

• n8n Documentation
• MCP Protocol Spec
• Flow Nexus GitHub

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