Pricing
People
Free. Log as many drinks as you like in the app — everything runs on your own device.
| Free | The whole app: live level, 24 h curve, bedtime forecast, custom half-life. |
|---|---|
| Pro — $2.99/mo | Multi-day history and a sleep-quality view, as they land. Upgrade to Pro |
Agents and developers
| Free tier | 50 calls per day per caller |
|---|---|
| After that | $0.002 per call |
| Pay with | MPP (card or stablecoin via Stripe) or x402 (USDC on Base). A 402 response carries both challenges. |
| Endpoints | POST /api/caffeine-level · POST /mcp |
Machine-readable: pricing.json · openapi.json · agent card