Infrastructure for the
Next Generation of Solana

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Built for Seeker

Building the next generation of mobile-native Solana experiences.

COMING SOON

How It Works

Cold signing in three steps.

Flash any USB drive

Turn any USB stick into a disposable, RAM-only cold wallet. No $200 device, no vendor lock-in.

→

Sign via QR code

Your air-gapped device signs transactions offline. Private keys are decrypted only in memory, and never touch the internet.

→

Broadcast

Scan the signed transaction back to a connected device and broadcast it to Solana. Keys never leave the cold side.

Native. Powerful. Seamless.

Coldstar
on Seeker

The ultimate mobile experience built on Solana.

✓ Ultra-fast transactions

✓ One-tap onboarding

✓ Native wallet integration

✓ Secure by design

9:01● ● ●

ColdstarWALLET

$4,823.45

▲ +12.41%

↑Send

↓Receive

⇄Swap

≡History

Tokens

◎SOLSolana12.34$2,843.72

$USDCUSD Coin1,250.50$1,250.50

JJUPJupiter320.00$729.23

Why Coldstar

Hardware-grade security,
without the hardware.

True air gap

Keys are decrypted only in volatile memory, only for the moment of signing. Nothing is persisted, nothing is online.

$10, not $200

save 95%

Any USB drive becomes a cold wallet. No proprietary hardware, no supply chain, no vendor lock-in.

Jupiter swaps

Best-price swaps routed through Jupiter and signed air-gapped — DeFi without exposing your keys.

Cross-platform

macOS, Linux and Windows. Pure cryptography and a USB stick — runs anywhere Python does.

Open source

The signing path is open and auditable. Verify exactly what touches your keys — don't take our word for it.

Multi-chain & RWAs

SPL tokens, Jito staking tips, and native support for tokenized commodities (PAXG) and equities (xStocks).

⚡ Custody

Non-custodial

◍ Signing modes

Seed Vault + air-gap

⊕ Key exposure

Keys never leave your device

◷ Network

Solana

Mainnet-beta

Global by Design

Built for everywhere.

Engineered to scale across regions worldwide — wherever Solana users are.

Network node Transaction

Roadmap

Q3 2026

Launch

Coldstar mainnet goes live.

Q4 2026

Seeker Integration

Native integration and mobile SDK.

Q1 2027

Mainnet Expansion

Scalability, new regions, more products.

Future

Developer Platform

Tools, APIs and ecosystem growth.

Stronger Together

An ecosystem
of innovators.

Coldstar works alongside the best teams and protocols building the future of Solana.

Ecosystem Integrations

Get Started

Start in 60 seconds.

The Coldstar CLI is available today. Flash a USB, create a wallet, and sign offline.

bash

$ pip install coldstar

Requires Python 3.11+ · macOS · Linux · Windows · 1% fee capped at $10 · Read the docs →

Early Access

Join the whitelist.

The app is coming soon. Get whitelisted for early access.

First 50 — custom t-shirt • First 200 — branded USB drive