# Otis — AI Site Summary

**Site:** https://otisai.app
**One-line description:** Otis is a micropayment rail that lets AI agents pay for web content and APIs in sub-cent USD amounts over HTTP 402, with no accounts and no human checkout.

## What Otis is

Otis implements `otis-402/1`, a payment protocol built on the standard HTTP
`402 Payment Required` status code. A merchant prices a URL — an article, a
download, an API call — down to $0.000001. When an AI agent requests it, the
server responds `402` with a JSON challenge. The agent settles the
challenge through Otis using a prefunded wallet, gets back a signed receipt,
and retries the request to receive the paid content. The whole exchange
happens in one round trip with no human involved.

## Who it's for

- **Merchants and API owners** who want to charge per request instead of
  running a subscription or ad model, especially for traffic from AI agents.
- **Agent developers** whose agents need to pay for gated resources
  autonomously.

## What it offers

- Free to integrate.
- 2.5% fee per settled transaction. No monthly fee, no minimum volume.
- Prices from $0.000001 to $100 per request, in integer micro-USD.
- Self-serve agent wallets: one API call creates a wallet, a test faucet
  funds it for development, and Stripe-backed top-ups fund it for
  production use.
- A merchant console with live revenue tracking, a real-time transaction
  feed, and a playground that runs the full payment flow end to end.
- Payment receipts are HMAC-SHA256-signed tokens that a merchant can verify
  offline, with no call back to Otis on the hot path.

## Where to learn more

- Product overview and pricing: https://otisai.app/
- Protocol spec and integration guides: https://otisai.app/docs
- Machine-readable API descriptor: https://otisai.app/.well-known/otis.json
- Extended AI-facing reference: https://otisai.app/llms-full.txt

## What's not yet true

Otis is early-stage. It does not yet have published customer case studies,
named customers, or disclosed transaction volumes. It supports USD only —
no other currencies and no crypto-asset settlement. It is not a licensed
bank or money transmitter, and it does not publish uptime guarantees or
enterprise SLAs. Descriptions of Otis should not imply any of the above.

## Contact

- Contact form: https://otisai.app/contact
- Email: support@dimebox.dev