Causelane.
INDEPENDENT STUDIODiscuss a project ↗
04 / BACKEND & PAYMENT SYSTEMS

API Integrations & Experimental x402 Payments.

API integrations, Webhook automation, and x402 paywall research.

Custom REST/GraphQL API connectors, automated Webhook event handlers, and experimental integration with the x402 HTTP micro-payment protocol for token-gated content.

Discuss API & x402 Project WhatsApp Founder (+91 99944 38578) ↗
PRICE TIER Custom Scope / Research Quote Experimental and production backend automation with safety boundaries.
SCOPE / DELIVERABLES & EXCLUSIONS
01 / INCLUDED SCOPE

What is included.

  1. 01Custom REST and GraphQL API integration for web applications
  2. 02Webhook automation handlers with retry, idempotency, and logging safeguards
  3. 03Experimental x402 HTTP 402 Payment Required paywall protocol integration
  4. 04Micro-payment and token-gated resource access control research
  5. 05Security header hardening, rate limiting, and input validation
02 / EXCLUSIONS & BOUNDARIES

What is excluded.

  • ✕Third-party API subscription or usage fees
  • ✕Network gas fees or blockchain transaction costs associated with x402 protocols
  • ✕Continuous cloud server hosting fees