OrcaQubits

Implement MPP client-side payment handling with mppx.fetch().

Validate MPP implementations against the specification — verify HTTP 402 challenge-response compliance, header formats, payment method…

Cross-cutting MPP development patterns — security, replay protection, HMAC challenge binding, receipt validation, error handling, retry…

Implement MPP payment proxies — wrap existing APIs with HTTP 402 payment gates without modifying the upstream service.

Scaffold an MPP project — install mppx SDK, configure payment methods, set up server middleware, and create a basic paid API endpoint.

Implement MPP server-side middleware for Hono, Express, Next.js, and Elysia.

Implement MPP service discovery — OpenAPI documents with x-payment-info extensions, x-service-info metadata, and llms.txt for autonomous…

Implement MPP session-based streaming payment flows — authorize-once pay-as-you-go patterns for continuous data feeds, per-token billing…

Implement Shared Payment Token (SPT) lifecycle management for MPP — creation, usage, deactivation, webhook events, and reconciliation.

Configure Stripe as an MPP payment method — card and wallet payments via Shared Payment Tokens (SPTs), integrating MPP's HTTP 402 flow…

Configure Tempo blockchain as an MPP payment method — USDC stablecoin payments with sub-second finality, 100,000+ TPS, and no gas…

Build Next.js 15 storefronts for Medusa v2 — App Router conventions, server vs client components, Medusa JS SDK integration, data…