Goodlady Authenticity Seal X Circle

Goodlady Finance Authenticity Seal is a payment and authenticity infrastructure that integrates Circle’s USDC and web3 capabilities into the Agent Goodlady lending ecosystem. It separates frontend and backend concerns to work around edge-runtime constraints, running a React/Vite frontend on Cloud while delegating all Circle SDK operations to a dedicated Node.js backend. The backend, implemented with Node.js and Express, uses the Circle SDK to create and track payments, generate and manage wallets, perform CCTP cross-chain USDC transfers, and verify webhook signatures for trusted event handling. It exposes these capabilities through API endpoints that the frontend can call via standard fetch requests, allowing the UI to stay lightweight while the backend handles sensitive operations and credentials via environment variables such as CIRCLE_API_KEY, CIRCLE_ENVIRONMENT, and CIRCLE_WEBHOOK_SECRET. Deployment is designed for scalability and security using Google Cloud Run for the backend, providing serverless autoscaling, pay-per-use economics, and a public HTTPS endpoint required for Circle webhook delivery. The integration guides you through setting up the Google Cloud SDK, configuring a project, and wiring environment variables so the Circle SDK can run in both sandbox and production. On the Circle side, a dedicated webhook is configured to point to the Cloud Run URL, subscribing to events like payment.completed and payment.failed, which lets Goodlady record and act on final payment states in a tamper-resistant way. On the frontend, This architecture supports Goodlady’s Authenticity Seal concept by tying verified, signature-checked payment events to the platform’s trust and underwriting logic, enabling a consistent, scalable pattern for web3-native payments, wallet management, and authenticity verification across Goodlady’s credit and lending products.