.SKI — .Sui Key-In

.SKI once, everywhere.

Native Cross-Chain Wallets via IKA dWallets

Real Bitcoin, Ethereum, and Solana addresses controlled by your Sui account — no bridges, no wrapping, no custodians. Powered by IKA's 2PC-MPC threshold signatures.

What One Sui Account Controls

Two DKG ceremonies. Two dWallets. Seven chains. One Sui account.

Why This Matters

• No bridges — BTC stays on Bitcoin, SOL stays on Solana. IKA generates real native addresses whose signing is governed by Sui smart contracts.
• Non-collusive security — 2PC-MPC means neither the user nor the network can sign alone. 100+ mainnet operators with Byzantine threshold.
• Quantum-ready architecture — Sui's flag-byte signature scheme lets the network add post-quantum primitives via a new flag byte — no hard fork, no address migration. See docs/ika-quantum-resistance.md.

Core Principles

• IKA-native, keyless agents. Every cross-chain address is IKA dWallet derived. No private keys on workers. Batch DKG = "Rumble your squids."
• Cache, not treasury. Funds flow through caches — high-performance temporary stores.
• Stables, not stablecoins. iUSD is a stable backed by activity yield.
• Encrypt, not encrypted. Use verb forms — encrypt/decrypt.

Domain Structure

Cross-domain session cookie (ski:xdomain) on domain=sui.ski for auth persistence across subdomains.

UI Overview

The .SKI header bar renders four elements:

• Dot — wallet status shape (green circle = unconnected, black diamond = connected, blue square = has SuiNS name). Toggles modal/menu.
• Profile pill — wallet icon, social badge, SuiNS name + squid emoji (IKA status), live balance. Clicks to .sui.ski profile page.
• SKI button — branded button. Three-state cycle: menu → idle overlay → menu.
• Balance pill — live USD balance. Click to cycle SUI/USD display.

Idle Overlay

After 15s of inactivity (or via SKI button cycle), the menu collapses into a compact overlay with:

• Pixel art video (cached via Cache API for instant replay)
• Name search input with full SuiNS resolution
• Squids rows — styled BTC/ETH/SOL/SUI address rows with chain-colored icons, toggle-select to copy
• Rumble button — runs IKA DKG to provision all chain wallets
• Thunder messaging row
• Version badge linking to npm

The overlay restores instantly on hard refresh via ski:last-address localStorage fallback, with IKA addresses cached to ski:ika-addrs:${address}.

SKI Modal

Single-column overlay with key detail pane, Splash legend (keys grouped by shape tier), wallet list, and WaaP social login row. Long-press lock (2.2s) pins a wallet. Layout toggle persists preference.

SKI Menu

Dropdown with SuiNS name management, marketplace purchase (Tradeport/kiosk), Shade orders, Thunder messaging, coin chip swaps, SUIAMI identity proofs, and key management.

Thunder — Encrypt Signals

On-chain encrypt messaging between SuiNS identities. Powered by Seal threshold encryption (2-of-3 key servers) with ciphertext on Walrus.

• Signal — encrypt a message to any .sui name; only the NFT owner can decrypt
• Quest — claim and decrypt signals, NFT-gated via Seal policies
• Strike — delete signals on-chain, routing storage rebates to cache
• @tags — mention SuiNS names with autocomplete from roster

Move contract (v4): 0xb16f344c9f778be79d81ad3b3bd799476681d339a099ff9acaf2b7ea9e5d9581

Storm v1

Permissionless on-chain messaging primitive used by Thunder v5. No fees, no admin keys, no NFT gates. ECDH-derived storm_id hides who talks to whom.

Package: 0xa3ed4fdf1369313647efcef77fd577aa4b77b50c62e5c5e29d4c383390cdf942

SUIAMI

SUI-Authenticated Message Identity — cryptographic proof that a SuiNS name belongs to you. Verified server-side via /api/suiami/verify.

SUIAMI Roster

Cross-chain identity resolver. Maps SuiNS names to BTC/ETH/SOL addresses via IKA dWallets in a shared on-chain registry with reverse lookup.

v2 Package: 0xef4fa3fa12a1413cf998ea8b03348281bb9edd09f21a0a245a42b103a2e9c3b4

Shade

Privacy-preserving SuiNS grace-period domain sniping. Commitment-reveal hides domain/target/timing on-chain until execution. Seal encryption for payload privacy.

• ShadeExecutorAgent — Cloudflare DO auto-executes at grace expiry via alarms
• execute() — permissionless; anyone with the preimage can call
• Three routes: SUI→NS, SUI→USDC→NS, SUI direct fallback

Contract: 0xfcd0b2b4f69758cd3ed0d35a55335417cac6304017c3c5d9a5aaff75c367aaff

See SHIELD.md for the security model.

iUSD — Yield-Bearing Stable

Dollar-pegged stable backed by diversified reserves (gold, silver, equities, energy, dollar instruments) custodied natively across BTC, ETH, SOL, and SUI via IKA dWallet threshold signatures.

Reserve Composition

150% minimum collateral ratio. 9-decimal steganographic encoding fingerprints every mint.

v2 Package: 0x2c5653668edefe2a782bf755e02bda56149e7b65b56f6245fb75b718941d2ec9

Sibyl — The Predictor

Custom oracle. Timestreams flow price through time. Pythia (ultron.sui) channels visions. Offerings flow to the iUSD cache. Sibyl's Court: Anthropologists (research), Hunters (iUSD yield), Rogues (IKA squid breeding).

ultron.sui — Autonomous Agent

Address: 0xa84cebfde3f0522cd893263d5208a633cd226a1585249b32f02d77438094b3c3

Keeper wallet for all server-side signing: iUSD minting, Shade execution, Thunder relay, dust sweeps, fee collection.

Deployed Contracts

Install

npm install sui.ski
# or
bun add sui.ski

Embed via script tag

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/sui.ski/public/styles.css">
<script type="module" src="https://cdn.jsdelivr.net/npm/sui.ski/public/dist/ski.js"></script>

Add the widget markup:

<div class="ski-header">
  <div class="ski-wallet" id="ski-wallet">
    <button class="ski-btn ski-dot" id="ski-dot" style="display:none"></button>
    <div id="ski-profile"></div>
    <button class="ski-btn" id="ski-btn" style="display:none"></button>
    <div id="ski-menu"></div>
  </div>
</div>
<div id="ski-modal"></div>

Auto-initializes on load.

Embed via bundler

import 'sui.ski';

Same DOM markup required.

Events

window.addEventListener('ski:wallet-connected', (e: CustomEvent) => {
  const { address, walletName } = e.detail;
});

window.addEventListener('ski:wallet-disconnected', () => {});

window.dispatchEvent(new CustomEvent('ski:request-signin'));

Requesting a transaction

import { Transaction } from '@mysten/sui/transactions';

const tx = new Transaction();
// ... build your transaction

window.dispatchEvent(new CustomEvent('ski:sign-and-execute-transaction', {
  detail: { transaction: tx, requestId: 'my-req-1' }
}));

window.addEventListener('ski:transaction-result', (e: CustomEvent) => {
  const { requestId, success, digest, error } = e.detail;
});

Splash sponsorship is applied automatically when active.

Self-Hosting

bun install
npx wrangler login
bun run build && npx wrangler deploy

Durable Objects

API Routes

Stack

• @mysten/sui ^2.13.0, @mysten/suins ^1.0.2, @human.tech/waap-sdk 1.2.4, @ika.xyz/sdk 0.3.1
• DEX: aftermath-ts-sdk (aggregation), DeepBook v3, Bluefin CLMM, Cetus CLMM
• Transport: SuiGrpcClient primary, SuiGraphQLClient fallback — no JSON-RPC (sunsets April 2026)
• Build: bun build with JSON import for version injection
• Deploy: Cloudflare Workers + Durable Objects

Local Development

bun install
bun run dev          # watches src/ski.ts
bun run dev:wrangler # wrangler dev with hot reload

License

MIT