Universal Stablecoin Payment SDK for Arc Network
ArcPay is a comprehensive TypeScript SDK that makes USDC payments simple on Arc Network. Zero gas fees, 150+ APIs, 3 lines of code to integrate. THE PROBLEM Developers building payment features face: - Complex smart contract integrations - Users needing native tokens for gas - Fragmented tooling and poor documentation - No privacy or streaming options OUR SOLUTION ArcPay provides everything in one SDK: Core Payments - Send USDC instantly with sub-second finality. Users pay zero gas fees via Circle Gas Station. Payment Streaming - Real-time money flow for salaries and subscriptions. Recipients claim funds per-second. Escrow System - Trustless trades with milestone releases and arbiter dispute resolution. Privacy Payments - Stealth addresses (EIP-5564) for confidential transfers. AI Agent Payments - Autonomous agents with budget controls and spending limits. x402 Micropayments - Pay-per-use API monetization protocol. Voice Commands - Hands-free payments: "Send 10 USDC to Alice" (bonus feature powered by Gemini AI). DEVELOPER EXPERIENCE Three lines to start: const arc = await ArcPay.init({ network: 'arc-testnet' }); await arc.sendUSDC(recipient, '10.00'); Full TypeScript support, interactive playground, comprehensive docs. TECHNICAL STACK - 150+ APIs across 28 modules - Smart contracts on Arc Testnet (Chain 5042002) - Circle Wallets (ERC-4337 Smart Contract Accounts) - Circle Gas Station for sponsored transactions - Native USDC with ~0.5s finality PRODUCTION READY 105 tests passed, 18 real onchain transactions verified on Arc Block Explorer.
Category tags:"Presentation is good. Application of technology is also good, originality is also good.In future can be implemented for multiple languages "
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Mahesh P K
"ArcPay demonstrates excellent developer experience with comprehensive TypeScript support, interactive playground, and extensive documentation. The SDK's technical stack includes smart contracts on Arc Testnet, Circle Wallets with ERC-4337 Smart Contract Accounts, Circle Gas Station for sponsored transactions, and native USDC with ~0.5s finality. Key strengths include the broad feature set covering multiple payment scenarios and 105 tests passed and 18 real onchain transactions verified. For improvement, consider adding more granular error handling for different payment scenarios, implementing circuit breaker patterns for API resilience, expanding the voice command feature with more natural language processing capabilities, and adding comprehensive monitoring and analytics for payment flows. "
Ken Huang
CEO
" I also really like the TypeScript-based design with easy 3-line integration, democratizing access to 150+ APIs without heavy lifting. Plus, the focus on universal stablecoin handling ties perfectly into autonomous AI agents managing payments seamlessly. On improvements, I'd suggest expanding to multi-stablecoin support (e.g., beyond USDC to include USDT or DAI) for broader adoption. Add robust security features like end-to-end encryption or audit trails for payment flows to build trust in agentic scenarios. Finally, include more comprehensive demos or code samples showing real AI agent integrations, like autonomous micropayments in commerce workflows. "
Pavan Kumar Gondhi
Sr Vice President
For Innovators & Creators