SIP Protocol Documentation

One toggle to shield sender, amount, and recipient in cross-chain swaps

What is SIP?

Shielded Intents Protocol enables private cross-chain swaps using stealth addresses, Pedersen commitments, and viewing keys for compliance.

Stealth Addresses

Generate unique, one-time recipient addresses that cannot be linked to your identity

Hidden Amounts

Transaction amounts are cryptographically committed, invisible to observers

Compliant Privacy

Selective disclosure via viewing keys enables audit and regulatory compliance

Cross-Chain

Works across Ethereum, Solana, NEAR, Zcash, and more via NEAR Intents

Quick Install

npm install @sip-protocol/sdk

import { SIP, PrivacyLevel } from '@sip-protocol/sdk'

const sip = new SIP({ network: 'testnet' })

const intent = await sip
  .intent()
  .input('solana', 'SOL', 1_000_000_000n)
  .output('ethereum', 'ETH')
  .privacy(PrivacyLevel.SHIELDED)
  .build()

Privacy Levels

Level	Sender	Amount	Recipient	Auditable
`TRANSPARENT`	Visible	Visible	Visible	N/A
`SHIELDED`	Hidden	Hidden	Hidden	No
`COMPLIANT`	Hidden	Hidden	Hidden	Yes

Architecture

User Intent → Privacy Layer (SIP) → NEAR Intents → Multi-chain Settlement

┌─────────────────────────────────────────────────────────────┐
│  PRIVACY LAYER (SIP)                                        │
│  • Pedersen Commitments  • Stealth Addresses                │
│  • Viewing Keys          • Shielded Intents                 │
├─────────────────────────────────────────────────────────────┤
│  SETTLEMENT LAYER (NEAR Intents + Chain Signatures)         │
├─────────────────────────────────────────────────────────────┤
│  BLOCKCHAIN LAYER                                           │
│  • NEAR  • Ethereum  • Solana  • Zcash  • Bitcoin          │
└─────────────────────────────────────────────────────────────┘

Current Status

741 tests passing
TypeScript SDK published to npm
Production-ready core primitives
Demo at sip-protocol.org