Automate travel expense extraction with OCR, Mistral AI and Supabase
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 13 nodes and runs when a chat message arrives. Along the way it connects Supabase and Mistral Cloud Chat Model.
How it runs
Trigger: When a chat message arrives.
- CHECK IF BINARY FILE IS PRESENT OR NOT (If): checks a condition and branches into true / false
- Split Out: splits a list into separate items
- Merge: merges the data from its input branches
- NORMALIZE binary file (Code): runs custom JavaScript code
- Travel reimbursement agent (AI Agent): runs an AI agent, with model: Mistral Cloud Chat Model; 2 tools (Calculator, Supabase Get); memory: Simple Memory
- OCR (ANY OCR API ) (HTTP Request): calls an HTTP API (POST)
- STORE OCR OUTPUT (Supabase): uses Supabase
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- AI Agent v1 (old agent modes) in Travel reimbursement agent (v1.9): replace with Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent.
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) Travel reimbursement agent (v1.9) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (12)
- Split Out
n8n-nodes-base.splitOut - Merge
n8n-nodes-base.merge - Supabase Tool
n8n-nodes-base.supabaseTool - Chat Trigger
@n8n/n8n-nodes-langchain.chatTrigger - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - Mistral Cloud Chat Model
@n8n/n8n-nodes-langchain.lmChatMistralCloud - Calculator
@n8n/n8n-nodes-langchain.toolCalculator - If
n8n-nodes-base.if - Code
n8n-nodes-base.code - HTTP Request
n8n-nodes-base.httpRequest - Supabase
n8n-nodes-base.supabase - AI Agent
@n8n/n8n-nodes-langchain.agent
From the author
Travel Reimbursement - OCR & Expense Extraction Workflow Overview This is a lightweight n8n workflow that accepts chat input and uploaded receipts, runs OCR, stores parsed results in Supabase, and uses an AI agent to extract structured travel expense data and…