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### THE Privacy Standard for Web3 [![Website](https://img.shields.io/badge/🌐_sip--protocol.org-00C08B?style=for-the-badge)](https://sip-protocol.org) [![npm](https://img.shields.io/badge/npm-@sip--protocol/sdk-CB3837?style=for-the-badge&logo=npm)](https://www.npmjs.com/package/@sip-protocol/sdk) [![Docs](https://img.shields.io/badge/📚_Documentation-blue?style=for-the-badge)](https://docs.sip-protocol.org) **🏆 Winner — [Zypherpunk Hackathon](https://zypherpunk.xyz) 3 Tracks ($6,500: NEAR $4,000 + Tachyon $500 + pumpfun $2,000)** *Shielded Intents • Stealth Addresses • Viewing Keys • Compliant Privacy*

--- ## What is SIP? **SIP (Shielded Intents Protocol)** is the privacy standard for Web3. One toggle to shield your sender, amount, and recipient—while maintaining compliance with viewing keys. Works for same-chain AND cross-chain transactions. ```typescript // Create a private cross-chain swap const intent = await sip .intent() .input('solana', 'SOL', 1_000_000_000n) .output('zcash', 'ZEC', 50_000_000n) .privacy(PrivacyLevel.SHIELDED) // ← One toggle .build() ``` **Enables:** - ✅ Hidden sender identity (Pedersen commitments) - ✅ Hidden transaction amounts - ✅ Unlinkable recipients (stealth addresses) - ✅ Selective disclosure for compliance (viewing keys) - ✅ Multi-chain privacy via NEAR Intents --- ## Ecosystem

### 🔐 [sip-protocol](https://github.com/sip-protocol/sip-protocol) **Core SDK & Types** The privacy layer SDK with stealth addresses, Pedersen commitments, and viewing keys. - ✅ **Status:** Production-ready (M17 complete) - 🛠️ **Stack:** TypeScript, @noble/curves, Vitest - 📦 **Packages:** 7 packages (sdk, types, react, cli, api, react-native, circuits) - ✨ **Tests:** 6,661+ tests passing [📖 Documentation](https://docs.sip-protocol.org) • [🚀 Get Started](#quick-start)

### 📚 [docs-sip](https://github.com/sip-protocol/docs-sip) **Documentation Site** Comprehensive guides, API reference, and integration examples. - 🌐 **Live:** docs.sip-protocol.org - 🛠️ **Stack:** Astro, Starlight - 📖 **Content:** Guides, API, Examples [🌐 Visit Docs](https://docs.sip-protocol.org)

### 🔬 [circuits](https://github.com/sip-protocol/circuits) **ZK Proof Circuits** Noir-based zero-knowledge proof circuits for funding, validity, and fulfillment proofs. - ✅ **Status:** Implemented (3 circuits, 19 tests) - 🛠️ **Stack:** Noir 1.0.0-beta.15, Barretenberg - 🎯 **Proofs:** Funding, Validity, Fulfillment

### 🌟 [awesome-sip](https://github.com/sip-protocol/awesome-sip) **Examples & Community** Production-ready examples and community projects. - 📋 **Status:** Future - 🎯 **Content:** DAO treasury, private payments, compliance flows

--- ## Quick Start ### Installation ```bash # npm npm install @sip-protocol/sdk # pnpm pnpm add @sip-protocol/sdk ``` ### Create a Shielded Intent ```typescript import { SIP, PrivacyLevel } from '@sip-protocol/sdk' // Initialize const sip = new SIP() // Create private cross-chain swap const intent = await sip .intent() .input('solana', 'SOL', 1_000_000_000n) .output('zcash', 'ZEC', 50_000_000n) .privacy(PrivacyLevel.SHIELDED) .build() // Intent now has: // - Hidden sender (Pedersen commitment) // - Hidden amount (Pedersen commitment) // - Stealth recipient address ``` ### With Compliance (Viewing Keys) ```typescript // Generate viewing key for auditors const viewingKey = sip.generateViewingKey('/m/44/501/0/audit') // Create compliant private intent const intent = await sip .intent() .input('ethereum', 'ETH', 1_000_000_000_000_000_000n) .output('near', 'NEAR', 100_000_000_000_000_000_000_000n) .privacy(PrivacyLevel.COMPLIANT) .build() // Auditor can decrypt transaction details with viewingKey ``` --- ## Privacy Levels | Level | Sender | Amount | Recipient | Auditable | |-------|--------|--------|-----------|-----------| | `transparent` | Public | Public | Public | N/A | | `shielded` | Hidden | Hidden | Stealth | No | | `compliant` | Hidden | Hidden | Stealth | Yes (viewing key) | --- ## Architecture ``` ┌─────────────────────────────────────────────────────────────┐ │ SIP PROTOCOL STACK │ ├─────────────────────────────────────────────────────────────┤ │ PRIVACY LAYER (SIP) ← We build this │ │ • Pedersen Commitments • Stealth Addresses │ │ • Viewing Keys • Shielded Intents │ ├─────────────────────────────────────────────────────────────┤ │ SETTLEMENT LAYER ← We leverage this │ │ • NEAR Intents • Chain Signatures │ ├─────────────────────────────────────────────────────────────┤ │ BLOCKCHAIN LAYER ← We connect to this │ │ • NEAR • Ethereum • Solana • Bitcoin • More... │ └─────────────────────────────────────────────────────────────┘ ``` **SIP is an application layer** that complements NEAR Intents and Zcash—not a competing infrastructure protocol. --- ## Why SIP? > **"Bridging tokens is easy, bridging secrets is hard."** > — [a16z Crypto, Big Ideas 2026](https://a16zcrypto.com/posts/article/big-ideas-things-excited-about-crypto-2026/) **SIP is the privacy layer that makes bridging secrets possible.** ### The Problem Cross-chain transactions are **public by default**: - ❌ Anyone can see your wallet address - ❌ Anyone can see transaction amounts - ❌ Anyone can link your transactions - ❌ No privacy = security risk for high-value users ### The Solution **SIP adds privacy to NEAR Intents:** - ✅ **Stealth addresses** - One-time recipient addresses - ✅ **Pedersen commitments** - Hide amounts cryptographically - ✅ **Viewing keys** - Selective disclosure for compliance - ✅ **Multi-chain** - Works across any NEAR-connected chain ### Who Needs This? | User | Use Case | |------|----------| | **DAOs** | Private treasury operations | | **Institutions** | Compliant private transactions | | **High-net-worth** | Protection from targeting | | **Traders** | MEV protection, hidden strategies | --- ## Roadmap ### ✅ Completed (M1-M16) - **Phase 1:** Foundation — Core crypto, NEAR Intents, Zcash - **Phase 2:** Standard — Multi-backend, 15+ chains support - **Phase 3:** Ecosystem — Compliance, React/CLI/API packages, hardware wallets - **M16:** Narrative Capture — Content campaign, community, 25 blog posts ### ✅ Recently Completed (M17) - **M17:** Solana Same-Chain Privacy — Native SDK + Jupiter DEX integration (Complete Jan 2026) ### 🎯 In Progress (M18) - **M18:** Ethereum Same-Chain Privacy — Base L2 + Solidity contracts ### 🔮 Future (M18-M21) - **M18:** Ethereum Same-Chain — EVM privacy + L2 support - **M19-M21:** Technical Moat — Proof composition, SIP-EIP standard --- ## Contributing - ⭐ **Star** repositories you find useful - 🐛 **Report issues** to help us improve - 💡 **Suggest features** in GitHub Discussions - 🔧 **Submit PRs** with improvements ---

### Privacy is not a feature. It's a right. *One toggle to shield them all.* --- **SIP Protocol** | THE Privacy Standard for Web3 | 2026 [![GitHub](https://img.shields.io/badge/GitHub-sip--protocol-181717?style=for-the-badge&logo=github)](https://github.com/sip-protocol) [![Website](https://img.shields.io/badge/Website-sip--protocol.org-00C08B?style=for-the-badge&logo=google-chrome&logoColor=white)](https://sip-protocol.org) *Built on NEAR Intents + Zcash Privacy*