AI scheduling agent. CC it into an email thread and it coordinates a meeting — checks your calendar, proposes times, and books when confirmed.

1. You're emailing someone about meeting up
2. CC sched-agent@agentmail.to into the thread
3. The agent reads the conversation, checks your Google Calendar, and proposes 2-3 times
4. The other party replies to pick a time
5. The agent creates the calendar event and confirms to everyone

You                  Guest                Agent
 │                     │                    │
 │── email ───────────>│                    │
 │<──── reply ─────────│                    │
 │── reply + CC agent─>│───────────────────>│
 │                     │                    │── check calendar
 │                     │<── propose times ──│
 │                     │── "Tuesday works"─>│
 │                     │                    │── create event
 │<── "Booked!" ───────│<── "Booked!" ──────│

The agent only manages your calendar. Guests don't need accounts.

Email the agent directly for the first time and it sends a Google Calendar OAuth link. Once connected, it can manage your calendar.

• Runtime: Node.js + TypeScript (ESM)
• Server: Hono
• AI: Claude Haiku 4.5 via @anthropic-ai/claude-agent-sdk
• Calendar: Google Calendar via Composio
• Email: AgentMail
• Database: PostgreSQL (Supabase) via Prisma
• Hosting: Railway

npm install

Create a .env file:

# Terminal 1: expose localhost
ngrok http 3000

# Terminal 2: dev server (auto-restarts on changes)
npm run dev

Set WEBHOOK_URL in .env to the ngrok HTTPS URL. The server registers the inbox and webhook on startup.

The app is deployed on Railway as a long-running Node.js service using Docker.

The Claude Agent SDK spawns a subprocess that can run for 30+ seconds per request. Vercel's serverless functions time out too quickly. Railway runs the app as a persistent server — no timeout issues.

The Dockerfile handles:

• OpenSSL for Prisma
• Non-root user — Claude Code refuses to run as root (security restriction)
• Prisma client generation at build time

# Install Railway CLI
npm i -g @railway/cli

# Login
railway login

# Init project (first time)
railway init

# Deploy
railway up

Set all env vars from the table above on Railway:

railway variables set KEY=value ...

Set WEBHOOK_URL to https://<your-app>.up.railway.app/webhooks.

railway domain

• GET / — Health check
• POST /webhooks — AgentMail webhook (message.received)
• POST /users — Register a new user
• GET /oauth/callback — Composio OAuth redirect