{"id":48983962,"url":"https://github.com/shpak-vlad/paydrip","last_synced_at":"2026-04-18T12:02:15.683Z","repository":{"id":327722033,"uuid":"1097169828","full_name":"shpak-vlad/PayDrip","owner":"shpak-vlad","description":"Micro‑payment and vesting pipeline on Base that streams funds as discrete “drips” funded by crypto or Base Pay.","archived":false,"fork":false,"pushed_at":"2025-12-08T14:56:39.000Z","size":163,"stargazers_count":3,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"dev","last_synced_at":"2025-12-08T18:53:21.384Z","etag":null,"topics":["base","base-network","base-pay","dashboard","micropayments","oracle","solidity","streaming-payments","vesting"],"latest_commit_sha":null,"homepage":"","language":"Solidity","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/shpak-vlad.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2025-11-15T17:01:21.000Z","updated_at":"2025-12-08T15:46:45.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/shpak-vlad/PayDrip","commit_stats":null,"previous_names":["shpak-vlad/paydrip"],"tags_count":null,"template":false,"template_full_name":null,"purl":"pkg:github/shpak-vlad/PayDrip","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shpak-vlad%2FPayDrip","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shpak-vlad%2FPayDrip/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shpak-vlad%2FPayDrip/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shpak-vlad%2FPayDrip/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/shpak-vlad","download_url":"https://codeload.github.com/shpak-vlad/PayDrip/tar.gz/refs/heads/dev","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shpak-vlad%2FPayDrip/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":31967993,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-18T00:39:45.007Z","status":"online","status_checked_at":"2026-04-18T02:00:07.018Z","response_time":103,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["base","base-network","base-pay","dashboard","micropayments","oracle","solidity","streaming-payments","vesting"],"created_at":"2026-04-18T12:02:14.538Z","updated_at":"2026-04-18T12:02:15.672Z","avatar_url":"https://github.com/shpak-vlad.png","language":"Solidity","funding_links":[],"categories":[],"sub_categories":[],"readme":"# PayDrip 💧\n\n\u003e Programmable micro-payment pipeline on Base L2. Create recurring payments, subscriptions, vesting, and more with fiat on-ramp support.\n\n[![Base](https://img.shields.io/badge/Base-0052FF?style=for-the-badge\u0026logo=ethereum\u0026logoColor=white)](https://base.org)\n[![Solidity](https://img.shields.io/badge/Solidity-0.8.23-363636?style=for-the-badge\u0026logo=solidity)](https://soliditylang.org/)\n[![License](https://img.shields.io/badge/License-MIT-blue?style=for-the-badge)](LICENSE)\n\n## 🚀 Features\n\n### Core Functionality\n- **📅 Discrete Step Payments** - Execute payments at specific intervals or events\n- **💰 Fiat On-Ramp** - Pay with credit card via Base Pay integration\n- **🔗 Payment Links** - Share payment links for easy subscriptions\n- **💱 Real-time Quotes** - Fiat-to-crypto conversion with multiple currencies\n- **🔄 UUPS Upgradeable** - Future-proof smart contracts\n- **⚡ Gas Optimized** - Efficient on Base L2\n\n### Use Cases\n- 📺 **Creator Subscriptions** - Monthly payments to content creators\n- 👥 **Team Vesting** - Token distribution for team members\n- 🏢 **Service Payments** - Weekly/monthly service invoices\n- 💳 **Usage-Based Billing** - Event-driven payment execution\n- 🎁 **Recurring Donations** - Automated charitable giving\n\n## 📦 Quick Start\n\n### For Users\n\n#### 1. Create a Drip with Crypto\n\n```javascript\nimport { PayDrip } from '@paydrip/sdk';\n\nconst drip = await payDrip.createDrip({\n  receiver: '0xReceiverAddress',\n  amountPerStep: '100', // 100 USDC\n  totalSteps: 12,\n  interval: 30 * 24 * 60 * 60, // 30 days\n  token: USDC_ADDRESS\n});\n// 💸 12 monthly payments of 100 USDC\n```\n\n#### 2. Create a Drip with Fiat (Credit Card)\n\n```javascript\nconst { paymentId, checkoutUrl } = await basePayDrip.initiateDripWithFiat({\n  receiver: '0xReceiverAddress',\n  amountPerStep: '50',\n  totalSteps: 6,\n  interval: 7 * 24 * 60 * 60, // 7 days\n  returnUrl: 'https://yourapp.com/success'\n});\n\n// Redirect user to checkoutUrl for credit card payment\nwindow.location.href = checkoutUrl;\n```\n\n#### 3. Create a Payment Link\n\n```javascript\nconst linkId = await linkFactory.createPaymentLink({\n  receiver: '0xReceiverAddress',\n  amountPerStep: '25',\n  totalSteps: 4,\n  interval: 14 * 24 * 60 * 60, // 14 days\n  expiry: Date.now() + 30 * 24 * 60 * 60 * 1000, // 30 days\n  memo: 'Premium Subscription',\n  multiUse: true\n});\n\n// Share link: https://paydrip.app/pay/{linkId}\n```\n\n### For Developers\n\n```bash\n# Clone repository\ngit clone https://github.com/shpak-vlad/PayDrip.git\ncd PayDrip/contracts\n\n# Install dependencies\nforge install\n\n# Run tests\nforge test -vv\n\n# Deploy\nforge script script/Deploy.s.sol --rpc-url base --broadcast\n```\n\n## 🏗️ Architecture\n\n### Core Contracts\n\n#### PayDrip.sol\nMain contract for drip creation and execution.\n\n```solidity\nstruct Drip {\n  address sender;\n  address receiver;\n  address token;\n  uint96 amountPerStep;\n  uint32 totalSteps;\n  uint32 currentStep;\n  uint32 interval;\n  uint64 lastExecuted;\n  bool active;\n}\n```\n\n#### BasePayDrip.sol\nFiat on-ramp integration via Base Pay API.\n\n**Features:**\n- Credit card to crypto conversion\n- Oracle-based payment confirmation\n- Automatic drip creation after payment\n\n#### PaymentLinkFactory.sol\nGenerate shareable payment links.\n\n**Features:**\n- Single-use or multi-use links\n- Crypto and fiat payment options\n- Link expiration and validation\n\n#### FiatQuoter.sol\nReal-time fiat-to-crypto quotes.\n\n**Features:**\n- Support for USD, EUR, GBP\n- Oracle-based rate updates\n- Fee calculation\n\n### Execution Flow\n\n```\n┌──────────────┐\n│ User creates │\n│    drip      │\n└──────┬───────┘\n       │\n       ▼\n┌──────────────┐     ┌─────────────┐\n│ Lock funds   │────▶│ Step 1      │\n│ (1000 USDC)  │     │ Transfer    │\n└──────────────┘     │ 100 USDC    │\n                     └──────┬──────┘\n                            │ Wait 30 days\n                            ▼\n                     ┌─────────────┐\n                     │ Step 2      │\n                     │ Transfer    │\n                     │ 100 USDC    │\n                     └──────┬──────┘\n                            │ ...\n                            ▼\n                     ┌─────────────┐\n                     │ Step 10     │\n                     │ Completed   │\n                     └─────────────┘\n```\n\n## 🌐 Deployments\n\n### Base Mainnet\n- **PayDrip Proxy**: `0x6f2bd18433b0aea1a10be7af88d3a6bbdd0f8b1e`\n- **USDC**: `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`\n- **BasePayDrip**: TBD\n- **PaymentLinkFactory**: TBD\n- **FiatQuoter**: TBD\n\n### Base Sepolia (Testnet)\n- **PayDrip Proxy**: See `contracts/deployments/base-sepolia.json`\n\n## 📖 Documentation\n\n- [Base Pay Integration Guide](contracts/docs/BASE_PAY_INTEGRATION.md)\n- [Deployment Guide](contracts/DEPLOYMENT.md)\n- [Security](contracts/SECURITY.md)\n- [Testing](contracts/TESTING.md)\n- [Gas Report](contracts/GAS_REPORT.md)\n\n## 🔐 Security\n\n- ✅ UUPS Upgradeable pattern\n- ✅ ReentrancyGuard on all external functions\n- ✅ Oracle verification for fiat payments\n- ✅ Payment timeout protection (24 hours)\n- ✅ Comprehensive test coverage\n\n**Audit Status**: Pending\n\n## 🛠️ Tech Stack\n\n- **Blockchain**: Base L2 (Optimistic Rollup)\n- **Language**: Solidity 0.8.23\n- **Framework**: Foundry\n- **Libraries**: OpenZeppelin Upgradeable\n- **Integration**: Base Pay API\n\n## 💡 Examples\n\n### Monthly Subscription\n\n```solidity\n// User subscribes to premium content\npayDrip.createDrip(\n    10e6,        // 10 USDC/month\n    12,          // 12 months\n    30 days,     // Monthly\n    creator,\n    USDC\n);\n```\n\n### Team Vesting\n\n```solidity\n// 100k tokens vesting quarterly over 1 year\npayDrip.createDrip(\n    25000e18,    // 25k tokens\n    4,           // 4 quarters\n    90 days,     // Quarterly\n    teamMember,\n    TOKEN\n);\n```\n\n### Service Payment\n\n```solidity\n// Weekly service payment for 6 months\npayDrip.createDrip(\n    100e6,       // 100 USDC/week\n    24,          // 24 weeks\n    7 days,      // Weekly\n    provider,\n    USDC\n);\n```\n\n## 🤝 Contributing\n\nContributions are welcome! Please read our contributing guidelines.\n\n1. Fork the repository\n2. Create your feature branch (`git checkout -b feature/amazing-feature`)\n3. Commit your changes (`git commit -m 'feat: add amazing feature'`)\n4. Push to the branch (`git push origin feature/amazing-feature`)\n5. Open a Pull Request\n\n## 📄 License\n\nMIT License - see [LICENSE](LICENSE) file for details\n\n## 🔗 Links\n\n- **Website**: https://paydrip.app (coming soon)\n- **Documentation**: https://docs.paydrip.app (coming soon)\n- **Base**: https://base.org\n- **GitHub**: https://github.com/shpak-vlad/PayDrip\n\n## 🙏 Acknowledgments\n\nBuilt on [Base](https://base.org) - the secure, low-cost, builder-friendly Ethereum L2 by Coinbase.\n\n---\n\n**Made with ❤️ for the Base ecosystem**\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fshpak-vlad%2Fpaydrip","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fshpak-vlad%2Fpaydrip","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fshpak-vlad%2Fpaydrip/lists"}