mcp-n8n-builder

Item: mcp-n8n-builder
Rating: 64
Author: M8ven

🪄 MCP server for programmatic creation and management of n8n workflows. Enables AI assistants to build, modify, and manage workflows without direct user intervention through a comprehensive set of tools and resources for interacting with n8n's REST API.

→ spences10/mcp-n8n-builder · listed on mcp_so

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find.

Install from

mcp.so GitHub

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings

⚠️

Known vulnerabilities in dependencies: 3 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 1 credential: N8N_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies3 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.15.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.15.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.15.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configCACHE_ENABLED— Enable caching false

configCACHE_TTL— Cache TTL in seconds 300

configLOG_LEVEL— Logging level "info"

🔐 secretN8N_API_KEY— "": "your-n8n-api-key",

configN8N_HOST— "": "http://localhost:5678/api/v1",

configOUTPUT_VERBOSITY— Verbosity Control: Use =concise (default) for summaries instead of full JSON

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/spences10-mcp-n8n-builder-1hnyhm)](https://m8ven.ai/mcp/spences10-mcp-n8n-builder-1hnyhm)

commit: d77555be45280e57575bc651e905f0d5d5a9b3c1

code hash: 50458fab27ba7ee74b2e2c5ec1db9aa41ff0fe09cc31312f86d69ebd48175faf

verified: 6/26/2026, 9:53:16 AM

view raw JSON →