Billing demonstrations in Rust: tier quotas with the Billable trait, verified webhook primitives, and an offline catalogue of payment-provider adapters. Capabilities vary by adapter and live credentials are never used by this page.
Select an adapter to exercise deterministic mock behavior through rullst-capital. This page does not contact a live payment service:
Strongly typed adapters with explicit offline credentials. Live capability and webhook requirements are documented and tested per provider.
Brazilian SaaS, optimized margins, zero-fee Pix, and credit card installments up to 12x.
High-volume global SaaS, international cards, Apple Pay, Google Pay, and customer portals.
Solo developers and startups selling globally without forming foreign legal entities.
Monetizing open-source repositories, software licenses, GitHub backers, and micro-SaaS.
Enterprise B2B SaaS in the US and Europe with quote-to-cash invoicing workflows.
Selling to the Chinese consumer market, cross-border e-commerce, and Alipay+ Global wallets (GCash, Kakao Pay, DANA).
Complete regional coverage across Latin America (Pix, Boleto, local credit/debit cards).
Recurring UPI Autopay, Indian cards (RuPay/Visa/Mastercard), and NetBanking mandates.
Borderless global subscriptions in Bitcoin, Ethereum, Solana, USDC, and USDT with zero chargebacks.
Consumer mobile apps, direct PicPay digital wallet balance, and native QR Code checkout.
Automated payouts and disbursements to international creators, affiliates, and remote contractors.
Click any provider below to view required environment variables (.env), Rust initialization code (init_provider), and webhook endpoints:
.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):.env):main.rs):/webhooks/capital):This fixture demonstrates escaped DPS XML construction only. It is not signed, transmitted, homologated, or authorized. Homologation and production fail closed until the complete official integration is independently verified.