Infrastructure for the
Next Generation of Solana

Launch App Learn More

Scroll to explore

Built for Seeker

Air-gapped self-custody, built for Seeker.

LIVE ON SEEKER

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

roadmap

SPL tokens today. On the roadmap: Jito staking 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

Compare

Honest head-to-heads,
including where we lose.

Ledger alternatives for Solana

9 options

Nine ways to hold Solana without a Ledger, from open-firmware devices to a $10 USB drive, with the reason you would pick each.

Solana cold storage options

10 options

Chip, paper, keypair file, multisig, or RAM-only signing: what each cold-storage design asks you to trust.

Turnkey alternatives for agent signing

10 options

Ten policy-gated signers for AI agents, compared on who holds the key, what the policy can express, and price.

Privy alternatives for agent wallets

8 options

Embedded and agent wallet vendors compared on custody model, policy depth, and where enforcement actually runs.

Solana agent wallets compared

18 options

The whole field in one table: hosted signers, on-chain wallets, frameworks, and the raw key in .env they replace.

Every head-to-head

30 pages

One page per tool, from Ledger to Turnkey, each with a verdict, a side-by-side table, where the other tool wins, and first-party sources.

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 live on the Solana Seeker dApp Store. Get whitelisted for early access.

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