Skip to main content
Stable supports multiple payment patterns, from simple wallet-to-wallet transfers to agent-driven service payments. The use cases below cover the patterns that are production-ready today. For patterns on the horizon (guaranteed settlement, confidential payments, agent-to-agent commerce), see Upcoming use cases.

​
Live use cases

P2P payments

Wallet-to-wallet USDT0 transfers. Sub-second settlement, zero gas via Gas Waiver.

Subscription billing

Pull-based recurring billing via EIP-7702. Subscriber authorizes once, provider collects each cycle.

Invoice settlement

B2B invoice payment with deterministic nonces. On-chain settlement links automatically to the invoice.

Pay-per-call APIs

Per-request HTTP payments via x402 middleware. No accounts, no API keys, no billing cycles.

​
Shared foundations

Most patterns build on the same two protocols:
  • ERC-3009: signed authorizations for delegated settlement. Used by invoices, pay-per-call, and P2P application-initiated transfers.
  • x402: HTTP-native payments over standard headers. Used by pay-per-call APIs and MCP-driven payment flows.
  • EIP-7702: EOA delegation for recurring authorization. Used by subscription billing.

ERC-3009

Start with the core settlement standard.

Upcoming use cases

Preview agent-to-agent commerce, guaranteed settlement, and confidential payments.
Last modified on April 23, 2026