IntegrationsOthers

n8n

Connect n8n automation workflows with Respan for LLM observability.

n8n is an open-source workflow automation platform. It provides a visual interface for connecting apps and services, with built-in AI nodes for LLM operations, making it easy to build AI-powered automations.

  1. Sign up — Create an account at platform.respan.ai
  2. Create an API key — Generate one on the API keys page
  3. Add credits or a provider key — Add credits on the Credits page or connect your own provider key on the Integrations page

Add the Docs MCP to your AI coding tool to get help building with Respan. No API key needed.

1{
2  "mcpServers": {
3    "respan-docs": {
4      "url": "https://docs.respan.ai/mcp"
5    }
6  }
7}

Setup

1

Install the Respan n8n node package

Install the community node package in your n8n instance:

$npm install @respan/n8n-nodes-respan

After installation, restart n8n so the new node becomes available.

2

Configure Respan credentials in n8n

In the n8n UI, go to Settings > Credentials and create a new Respan API credential. Paste your Respan API key:

API Key: your-respan-api-key
3

Add the Respan node to your workflows

Drag the Respan node into any workflow where you want to trace LLM operations. Connect it to your AI nodes and select the credential you configured in the previous step.

What gets traced

Once the Respan node is connected, the following data is captured automatically:

  • Workflow executions — Each workflow run is logged as a trace in Respan
  • AI node LLM calls — Requests and responses from AI nodes (OpenAI, Anthropic, etc.)
  • Input/output per node — The data flowing into and out of each traced node
  • Execution time and status — Duration and success/failure state of each execution

Learn more