📧 Automated Renewal Invoices
Schedule billing intervals and automatically dispatch branded HTML renewal emails with 1-click multi-chain checkout links before subscription expiration.
Non-custodial crypto recurring billing & global SaaS subscriptions.
Eliminate cross-border credit card declines, 0.5%–0.8% Stripe Subscription surcharges, and chargeback disputes. Automate monthly, quarterly, and annual USDT/USDC billing cycles with branded HTML renewal invoices, signed HMAC webhooks, and 99.5% direct wallet settlement.
🔑 Wallet-Bound License Entitlements
Connect subscription renewals directly to XPayr License Kit (`/.well-known/jwks.json`) to mint or extend ES256 JWT software keys verified offline by `@xpayr/extension-kit (v0.2.0)`.
🤖 Autonomous AI Agent Renewals
Allow developer and enterprise customers to pay recurring API, GPU, or MCP tool subscriptions automatically via `POST /api/mcp` under strict spend guardrails.
🌐 Multi-Chain Subscriber Choice
Subscribers renew using TRON USDT, Solana USDC, Base, Arbitrum, Polygon, or BNB Chain on each cycle without being locked to a single chain.
🔔 Idempotent Webhook Lifecycle
Receive signed `payment.completed`, `payment.underpaid_accepted`, and `license.issued` events with deterministic idempotency keys for zero double-provisioning.
💎 $0 Subscription Add-On Fee
Unlike traditional processors that charge an extra 0.5%–0.8% just for recurring billing software, XPayr includes Recurring Billing inside the flat 0.5% gateway fee.
Frequently Asked Questions — Crypto Subscriptions
How does non-custodial crypto recurring billing work without storing customer private keys?
XPayr never stores customer or merchant private keys. Recurring billing combines scheduled payment session generation, automated branded HTML renewal invoice emails (send_invoice_email), 1-year reusable payment links, and wallet-approved settlement flows where supported.
How does XPayr reduce involuntary SaaS churn compared to international credit cards?
Cross-border SaaS cards suffer 8% to 15% false declines from issuer blocks and expired cards. Stablecoin renewal links let global subscribers pay in USDT or USDC from any wallet or exchange in under a minute at a flat 0.5% fee.
Can recurring payments automatically extend software or browser extension licenses?
Yes. Pair Recurring Billing webhooks with XPayr License Kit (/developers/license-kit) and @xpayr/extension-kit (v0.2.0) to automatically issue or renew offline-verifiable ES256 JWT wallet entitlements upon each confirmed billing cycle.
Can AI agents pay recurring API or compute subscriptions autonomously?
Yes. Using @xpayr/mcp-server (v1.0.0) and XPayr Agent Commerce guardrails (/trust/ai-agent-guardrails), buyer agents can settle recurring compute or API invoices automatically within merchant-defined per-tx and daily USD caps.