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Stable is a Layer 1 where USDT0 is the native gas token, and standard EVM tooling (Solidity, Foundry, Hardhat, ethers, viem, and the eth_* JSON-RPC methods) works unchanged. Point your RPC at Stable and confirm the chain ID: 
cast chain-id --rpc-url https://rpc.stable.xyz

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For the full list of endpoints (mainnet and testnet), see Connect. If you haven’t sent a transaction on Stable yet, start with Quick start for a five-minute walkthrough on testnet. Then pick the path that matches what you’re building:
  • Wallets, delegation, and agent accounts → Accounts.
  • Moving USDT0 or building payment flows → Payments.
  • Deploying smart contracts → Contracts.
  • Wiring AI editors or building agent-paid services → AI/Agents.
  • Running a full or archive node, ecosystem providers, or covering gas → Infrastructure.
Before you ship, Core concepts covers four behaviors that differ from Ethereum (USDT0 dual role, guaranteed blockspace, transfer aggregator, EVM finality). Production readiness is the mainnet-readiness checklist.

Quick start

Connect to testnet, fund a wallet with USDT0, and send a transaction in under five minutes.

Core concepts

The four concepts (USDT0 dual role, guaranteed blockspace, transfer aggregator, EVM finality) you need before you build.

Differences from Ethereum

What stays the same and what changes when you port from Ethereum.

Production readiness

Validate an integration before shipping to mainnet.
Last modified on April 23, 2026