Testnet Vapps by Salmanph9

submissions/infrastructure/Salmanph9.md

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+# vApp Submission: SmartPay Protocol
+
+## Verification
+```yaml
+github_username: "Salmanph9"
+discord_id: "1193145957605462109"
+timestamp: "2025-11-25"
+```
+
+## Developer
+
+  - **Name**: Salman Paris Harahap
+  - **GitHub**: @Salmanph9
+  - **Discord**: s.p.h.
+  - **Experience**: Experience in community management and building is highly valued.
+## Project
+
+### Name & Category
+
+  - **Project**: SmartPay Protocol
+  - **Category**: infrastructure
+
+### Description
+
+A decentralized automation tool for managing recurring crypto payments (subscriptions, DAO dues, and DCA). Allows users to set allowances for specific intervals without locking funds in a custodial contract.
+
+### SL Integration
+
+Leverages SL Executable Tokens to define payment schedules and logic. The SL token acts as the user's "subscription card," handling validity checks and authorization logic off-chain before settling on-chain.
+
+## Technical
+
+### Architecture
+
+Smart Contracts handle the settlement and allowance registry. SL tokens carry the logic for billing cycles and user notifications, ensuring payments only trigger when conditions are met.
+
+### Stack
+
+
+Frontend: Next.js + Tailwind CSS
+
+Backend: NestJS (for indexing)
+
+Blockchain: SL + Base + Arbitrum
+
+Smart Contracts: Solidity (Foundry)
+
+
+### Features
+
+Gas-efficient recurring payments
+
+One-click subscription management
+
+Cross-chain balance checking
+
+## Timeline
+
+### PoC (2-4 weeks)
+
+  - [ ] Core allowance contracts
+  - [ ] Basic dashboard UI
+  - [ ] SL Token integration
+
+### MVP (4-8 weeks)
+
+  - [ ] Multi-chain support
+  - [ ] Notification service (Email/Telegram)
+  - [ ] Merchant SDK
+
+## Innovation
+
+Replaces custodial subscription models with self-sovereign logic using Smart Layer, reducing risk for both merchants and users.
+
+## Contact
+
+d preferred. Updates posted in community channels.
+
+**Checklist before submitting:**
+
+  - [x] All fields completed
+  - [x] GitHub username matches PR author
+  - [x] SL integration explained
+  - [x] Timeline is realistic
+
+<!-- end list -->