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Stable is built around payments. USDT0 is the native asset and the gas token, so settlement and fees share one balance. Single-slot finality means a transfer clears in under a second. ERC-3009, EIP-7702, and x402 are native primitives, not workarounds — you can settle with a signature, pull from a delegated account, or charge per HTTP request without running a billing stack.

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What you can build

  • P2P transfers — native USDT0 sends with 21k gas and sub-second finality.
  • Subscriptions — pull-based recurring billing with EIP-7702 delegation.
  • Invoice settlement — ERC-3009 transferWithAuthorization with deterministic nonces for exact reconciliation.
  • Pay-per-call APIs — x402 middleware for per-request USDT0 payments; no API keys, no sign-ups.
  • Zero-gas UX — application-sponsored transactions via the Gas Waiver service.
  • Cross-chain USDT0 — LayerZero OFT bridging from Ethereum and other networks.

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How Stable differs

  • One asset for everything: the sender doesn’t hold a separate gas token.
  • Native ERC-3009: USDT0 implements transferWithAuthorization directly, so payments settle with a signature and no approve step.
  • Deterministic finality: a block is final the moment it’s committed. No confirmation waits.
  • Native x402: the facilitator pays no gas through the Gas Waiver, so per-request settlement costs stay below a cent.

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Start here

Send your first USDT0

Native and ERC-20 transfers on the same balance.

Zero gas transactions

Transfer USDT0 with the fee covered by a Gas Waiver.

Learn P2P payments

Build a wallet + send + receive + history app from scratch.

Build a pay-per-call API

Price HTTP endpoints per request with x402.

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Payment primitives

ERC-3009

Transfer With Authorization: the settlement standard behind invoices and x402.

x402 (HTTP-native payments)

Server responds 402, client signs ERC-3009, facilitator settles on-chain.

Payments guide index

Every guide, concept, and reference under the Payments tab.

Subscribe and collect

Pull-based recurring billing via EIP-7702.

Paying with invoice

ERC-3009 with deterministic nonces for exact reconciliation.
Last modified on April 23, 2026