SIID

Non-custodial Solana wallet with end-to-end encrypted chat, DEX swaps, and limit orders. Your keys never leave your device.

SIID is a non-custodial Solana wallet with end-to-end encrypted chat — built so the natural overlap between "I just sent you SOL" and "let's coordinate the next trade" lives in one place, without depending on a centralized server. WALLET (non-custodial) • Your seed phrase is generated and stored locally, encrypted with PBKDF2-SHA256 (600,000 rounds) + AES-GCM-256. • We have no copy of your keys and no recovery mechanism. We literally cannot move your funds. • Send and receive SOL and any SPL token. Network fee only — SIID adds 0% on plain transfers. CHAT (end-to-end encrypted) • 1:1 messages use the Double Ratchet over a post-quantum X3DH handshake (hybrid X25519 + ML-KEM-768, FIPS 203) — every message gets its own key, and the key exchange resists "harvest-now, decrypt-later" quantum attacks. • Group chats use MLS (RFC 9420) for tree-based key agreement that scales past two parties. • Sealed-sender envelopes mean our relay routes ciphertext only — it cannot read what you send. • Every message is composed and sent by you — there is no automatic, bulk, or background messaging. • No phone number, no email — talk to any wallet by address or .sol name. SWAPS & LIMIT ORDERS • Token swaps routed across every Solana DEX. • Place LIMIT orders directly in the extension — single, OCO (one-cancels-other), and OTOCO (one-triggers-OCO). • Limit orders survive the popup closing. • An in-app trade feed logs every fill, cancel, and expire as a timeline. • Market 0.10% (.sol holders 0.05%). Limit-on-fill 0.05% (.sol holders free). NOTIFICATIONS (your activity only) • Get an OS notification when one of your own open limit orders fills, cancels, or expires — even when the popup is closed. • Optional blockchain-news alerts are OFF by default; turn them on in Settings only if you want them. CONNECT TO dAPPS • SIID is a Wallet Standard provider for any site you visit — open your favorite Solana apps and connect your wallet in one click. MULTI-WINDOW MODE • Pop chart and chat windows out of the popup and pin them anywhere on your screen. NO TRACKING • No analytics, no Google Analytics, no Mixpanel, no Sentry. • Relay logs anonymized connection events for rate limiting only, retained ≤24 hours. LEARN MORE Website: https://siid.me Privacy Policy: https://siid.me/privacy Terms of Service: https://siid.me/terms Contact: support@siid.me