a2a-Market-Stripe-Payment provides a complete blueprint for integrating Stripe payment processing into agent-to-agent marketplace orders. It covers the full payment lifecycle — authorization, capture, cancellation, and webhook reconciliation — with idempotency enforcement and security guardrails built in.
This instruction-only skill gives developers a proven architecture for adding traditional payment rails to A2A commerce systems, bridging the gap between agent marketplaces and established payment infrastructure.
Key Features
- Payment intent creation from order terms with client secret generation for secure frontend integration
- Capture and cancellation flows for authorized funds with explicit state management
- Webhook handling with Stripe signature verification for secure asynchronous event processing
- Event mapping that connects Stripe payment events to order lifecycle state transitions
- Idempotency enforcement across all API calls to prevent duplicate charges and ensure reliability
- Provider status tracking with explicit versioning for audit trails and debugging
Use Cases
- Add Stripe payment processing to an A2A marketplace for fiat currency settlements
- Implement authorize-then-capture flows where payment is held until service delivery is confirmed
- Maintain payment state synchronization between Stripe and an order management system
- Handle refund paths and dispute resolution through structured webhook processing
How It Works
The skill outlines a four-layer architecture: Stripe client integration, payment service layer, API payment routes, and a webhook worker for asynchronous processing. Core functions handle intent creation, fund capture, authorization voiding, and webhook event processing. Each layer includes security guardrails and error handling patterns.
Getting Started
Review the architectural blueprint and implement the outlined modules in your codebase. You will need a Stripe API key and webhook secret configured as environment variables. The skill provides contract definitions and integration patterns but requires manual implementation in your specific framework.
