n8n × LexGraph

Learn step by step how to connect LexGraph with n8n and use legal research directly in your existing workflow.

Learn step by step how to connect LexGraph with n8n and use legal research directly in your existing workflow.

1. Step 1: Open LexGraph at lexgraph.de and click “Profile” in the top-right corner.
2. Step 2: Scroll down to “MCP Connection”, then copy the “MCP URL”.
3. Step 3: Switch to n8n and click the plus icon in the top-left corner.
4. Step 4: Click “New workflow”.
5. Step 5: Click “Add first step”.
6. Step 6: Enter “MCP” in the search field on the right and select “MCP Client”.
7. Step 7: Configure the MCP server.
8. Step 8: Paste the MCP URL you copied into “MCP Endpoint URL”. Set Authentication to “MCP OAuth2”, then click “Set up credential”.
9. Step 9: Paste the same MCP URL again under “Server URL”.
10. Step 10: A “Connect” button should now appear. Click it.
11. Step 11: Click “Connect LexGraph”.
12. Step 12: You will be redirected back to n8n. Select lexgraph_search_legal_data from the tool list.
13. Step 13: Under “Values to Send”, enter the complete request in the query field, for example: Retrieve the decision XII ZR 95/16.
14. Step 14: Click “Execute Step”. The court case should be displayed on the right.