OpenZeppelin Contracts is a library for secure smart contract development.
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Self-hosted, non-custodial stablecoin payment gateway with x402 and invoice checkout. Accepts USDC, USDT, PYUSD and DAI across 8 networks with QR payments, payment links, settlement tracking and signed webhooks. REST API, micropayments, exports, zero platform fees and no KYC. Python, cross-platform.
- coinbase-x402
- coinpayments-api
- crypto-checkout-form
- crypto-payment-system
Develop and deploy smart contracts using natural language.
- ai-web3
- web3-agents
- web3-ai
- agents-web3
A toolkit combining Solidity testing and cross-chain deployment tools with Robot Framework. Also some basic components for monitoring EVM compatible blockchains.
- robotframework
- solidity
- blockchain
- cryptocurrency