AI Agents
Inbox Triage Agent with Approvals
An agent that labels, drafts replies and archives email but asks before sending
Intermediate18h1–3
LLMGmail APILangGraph
17/20#email hackathon ideas
12 ideas across 4 categories · 7 beginner · 4 intermediate · 1 advanced. Sorted by judging fit (editorial estimate).
Ideas tagged email
AI Agents
Overdue Invoice Follow-up Agent
An agent drafts polite, escalating payment reminders for overdue invoices
Beginner10h1–2LLMGoogle SheetsEmail17/20AI Agents
Return and Refund Claim Agent
The agent finds eligible returns in your order emails and drafts the claims
Intermediate14h1–2LLMGmail APICron17/20An agent replies to new enquiries, asks qualifying questions and books the good ones
Beginner10h1–2LLMEmailCalendar API17/20Productivity
Email to Calendar Event Extractor
Turn dates buried in emails into calendar events with one click
Beginner10h1–2LLMCalendar APINext.js17/20Productivity
Pre-Meeting Brief
Get a one-page brief before each meeting from past emails and notes
Intermediate14h1–2Calendar APIGmail APILLM17/20Productivity
Personal Search Across Mail, Docs and Notes
Ask one question and search your email, drive and notes at once
Advanced26h1–3EmbeddingsQdrantGmail API17/20Productivity
Trip Itinerary Merger
Combine flight, hotel and train confirmations into one clean timeline
Beginner10h1–2LLMNext.jsGmail API17/20Fintech
Email Receipts to Ledger
Automatically turn purchase receipts in email into bookkeeping entries
Intermediate14h1–2Gmail APILLMPostgres17/20Productivity
Read-Later Weekly Digest
Get one weekly email with summaries of everything you saved
Beginner8h1–2LLMNext.jsCron16/20Productivity
Newsletter Unsubscribe Helper
See every newsletter you get, how often you open it and unsubscribe in bulk
Beginner10h1–2Gmail APINext.js16/20Helps people spot important emails without reading everything
Beginner12h1–2Next.jsOpenAI API15/20