TiPPO — AI Tipping Agent

TiPPO is an AI-powered tipping agent that lets users send USDC tips to each other in chat communities (Slack, Discord). It uses MetaMask Advanced Permissions (ERC-7715) to grant the agent scoped, revocable spending permission — no infinite approvals, no repeated signing.

How It Works

1. User visits the dApp and connects MetaMask
2. MetaMask shows a human-readable permission screen:
   "Allow TiPPO to spend 10 USDC per day for 30 days"
3. User approves (ERC-712 signature, no gas cost)
4. A session account is created per user
5. The session account redelegates narrower scope to the AI agent
6. User @mentions the bot in Slack/Discord:
   "@tippo send 0.5 USDC to @bob"
7. OpenAI interprets the request and executes the transfer
8. The agent confirms with the transaction hash

Architecture

Data Flow

┌─────────────┐     ┌──────────────────────┐     ┌──────────────┐
│  Frontend    │────▶│  API Routes          │────▶│  In-Memory   │
│  (page.tsx)  │     │  /api/permissions/*  │     │  DB (lib/)   │
│              │     │  /api/webhooks/*     │     │              │
│  MetaMask    │     │                      │     │  Session     │
│  Extension   │     │  lib/agent.ts        │     │  Accounts    │
└─────────────┘     │  lib/bot.ts           │     └──────────────┘
                    │  lib/delegation.ts    │
                    └──────────┬───────────┘
                               │
                    ┌──────────▼───────────┐
                    │  Agent Account (EOA)  │
                    │  redeems delegation   │
                    │  to send tips         │
                    └──────────────────────┘

All the project was created during the hackathon

No funding