Charge Demo

Zero Invoices. Zero Contracts. Zero Wait.

Watch an AI agent pay for API access in real-time using Bitcoin Lightning. No credit cards. No monthly bills. Just instant, per-request micropayments that settle in milliseconds.

GET
Ready to simulate... Click 'Run Request' to start.
1. 402 Blocked
2. Lightning Payment
3. Data Unlocked

FAQ

L402 payment flow questions

What happens during an L402 payment flow?

An agent requests a protected API, receives HTTP 402 Payment Required with an L402 challenge, pays the Lightning invoice, then retries with proof of payment to unlock access.

Why use L402 for agent API access?

L402 lets autonomous agents pay at request time without subscriptions, credit cards, or long-lived API keys, making API access native to paid agents.

Can paid-rail context be combined with access policy?

Yes. SatGate can combine L402 payment with capability tokens, scoped authorization, budget policy, audit fields, and revocation so payment does not become unrestricted access.