Inbox manager (GPT, Google Calendar & 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 34 nodes and runs on Gmail events. Along the way it connects Gmail, OpenAI Chat Model, Google Calendar and Supabase Vector Store and 3 more.
How it runs
Trigger: On Gmail events.
- Text Classifier: classifies text into categories with AI, with model: OpenAI Chat Model
- Sales / Leads (Gmail): add labels
- Client Comm (Gmail): add labels
- Reports / Results (Gmail): add labels
- Billing / Admin (Gmail): add labels
- Other (Gmail): add labels
- Gmail: get (thread)
- Mark as Read (Gmail): mark as read
- Get Thread (Code): runs custom JavaScript code
- Calendar or Email (Basic LLM Chain): sends a prompt to an LLM, with model: OpenAI Chat Model; output parser: Structured Output Parser
…plus 10 more steps. See the full node list below.
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 Calendar Agent (v1.9), Knowledge 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.
- Also check Gmail Trigger below v1.4 runs as v1.4 (drafts skipped, max emails per poll).
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) Calendar Agent (v1.9), Knowledge 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 (17)
- Gmail Trigger
n8n-nodes-base.gmailTrigger - Text Classifier
@n8n/n8n-nodes-langchain.textClassifier - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Gmail
n8n-nodes-base.gmail - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured - Google Calendar Tool
n8n-nodes-base.googleCalendarTool - AI Agent
@n8n/n8n-nodes-langchain.agent - Think Tool
@n8n/n8n-nodes-langchain.toolThink - Basic LLM Chain
@n8n/n8n-nodes-langchain.chainLlm - Code
n8n-nodes-base.code - Switch
n8n-nodes-base.switch - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - Supabase Vector Store
@n8n/n8n-nodes-langchain.vectorStoreSupabase - Embeddings OpenAI
@n8n/n8n-nodes-langchain.embeddingsOpenAi - Vector Store Question Answer Tool
@n8n/n8n-nodes-langchain.toolVectorStore - Telegram
n8n-nodes-base.telegram - If
n8n-nodes-base.if
From the author
Overview Turn your cluttered inbox into a smart, autonomous assistant that categorizes emails, replies to leads, checks your calendar, and notifies you on Telegram—all without lifting a finger. This workflow is designed for a marketing agency, but can be…