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.opencode/skills/payment-integration/references/creem/overview.md

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+# Creem.io Overview
+
+Payment infrastructure platform supporting subscriptions, one-time payments, and licensing. Functions as Merchant of Record (MoR) - handles compliance, taxes, and payment processing.
+
+## Key Features
+
+- **Merchant of Record**: Tax compliance, payment processing, global coverage
+- **Subscriptions**: Recurring billing, trials, seat-based, prorations
+- **One-Time Payments**: Single charges for products/services
+- **Licensing**: Activation keys, device management, validation
+- **Checkouts**: Hosted, embedded, no-code options
+- **Customer Portal**: Self-service billing management
+- **Revenue Splits**: Automatic payment distribution to multiple recipients
+
+## When to Choose Creem
+
+- Global SaaS products requiring MoR
+- Software licensing with activation management
+- Subscription products with seat-based billing
+- Digital product sales with file delivery
+- Affiliate/commission programs
+- Multi-recipient revenue splitting
+
+## Authentication
+
+```bash
+# API Key authentication
+curl -H "Authorization: Bearer sk_live_xxx" https://api.creem.io/v1/...
+```
+
+Environment variables:
+```bash
+CREEM_API_KEY=sk_live_xxx        # Production
+CREEM_API_KEY=sk_test_xxx        # Test mode
+CREEM_WEBHOOK_SECRET=whsec_xxx   # Webhook verification
+```
+
+## API Base URLs
+
+- **Production**: `https://api.creem.io/v1`
+- **Test Mode**: Use `sk_test_` prefixed API keys
+
+## Rate Limits
+
+Standard API rate limits apply. Check response headers for limit status.
+
+## Global Support
+
+- **Customers**: Hundreds of countries supported
+- **Merchants**: Global payouts
+- **Languages**: 42 languages for checkout localization
+
+## Related References
+
+- **API Endpoints**: `references/creem/api.md`
+- **Webhooks**: `references/creem/webhooks.md`
+- **Checkouts**: `references/creem/checkouts.md`
+- **Subscriptions**: `references/creem/subscriptions.md`
+- **Licensing**: `references/creem/licensing.md`
+- **SDKs**: `references/creem/sdk.md`
+
+## External Resources
+
+- **Documentation**: https://docs.creem.io
+- **LLM Docs**: https://docs.creem.io/llms.txt