Deploy and manage smart contracts
from your cold wallet.

No CLI. No .env files. No hot keys. ColdAuth works with Tangem, Ledger, MetaMask, Phantom, or any WalletConnect wallet. Solana and EVM — one tool for every chain.

Solana live now · EVM live now · Web · CLI · VS Code
Solana → EVM → How it works
50+
SOL Recovered
3
Historic Firsts
$0
To Get Started
First browser-based Solana program deploy, upgrade, and close — no CLI, no Anchor, no Rust toolchain. Plus 50+ SOL recovered during development.
Buffer 1: 1.659 SOL →   Buffer 2: 1.81 SOL →   Buffer 3: 1.81 SOL →   Buffer 4: 1.81 SOL →
Universal Use Cases

Every blockchain. Every contract type.

If you own a smart contract, program, or protocol — WalletDeploy is how you manage it. Works with Phantom, Solflare, or any hardware wallet.

Solana

Program Management

Deploy, upgrade, extend, close programs — no CLI required. Transfer upgrade authority. Recover locked SOL from buffers. Cold wallet is authority from block 0.

✅ Live now
Solana

Buffer Recovery

Scan any wallet for orphaned buffer accounts and recover locked SOL in one click. No wallet connection needed to scan.

✅ Live now
Solana

Freeze Program

Permanently remove upgrade authority. Irreversible. The gold standard for decentralization — cryptographic proof your program can never be changed.

✅ Live now
Solana

AI Agent Administration

Emergency shutdown, reactivate, make irrevocable. Cold wallet governance for autonomous agents.

✅ Live now
Solana

Validator Operations

Update commission, withdraw from vote account. Full validator management from cold wallet.

Roadmap
Solana

NFT Collections

Candy Machine updates, Token Metadata authority transfers. Metaplex program management.

Roadmap
EVM

Deploy Any Contract

Deploy tokens or any contract from your cold wallet via ColdAuth Factory. Paste bytecode, auto-fill owner. Tangem, Ledger, or MetaMask.

✅ Live now
EVM

Manage Any Contract

Auto-fetch ABI from explorer. Every function becomes a button. Ownership verification. Works with any verified contract on Ethereum, Base, Arbitrum, Optimism, Polygon.

✅ Live now
EVM

Proxy Contracts

upgradeTo, transferOwnership, changeAdmin. OpenZeppelin TransparentProxy and UUPS.

✅ Live now
EVM

Token Contracts

Deploy ERC-20 tokens. transferOwnership, pause, unpause, mint, burn. All from cold wallet.

✅ Live now
EVM

DeFi Protocols

Emergency pause, fee updates, oracle changes. Admin operations for any DeFi protocol via custom ABI.

✅ Live now
EVM

NFT Collections

setBaseURI, reveal, pause, setRoyalty. Full collection management from cold wallet via custom ABI.

✅ Live now
EVM

DAO Governance

propose, execute, cancel, setVotingDelay. Any Governor contract — cold wallet signs every governance action via custom ABI.

✅ Live now
EVM

Bridge Contracts

setGuardian, updateRelayer, pause. Cold wallet administration for any bridge via custom ABI.

✅ Live now
Near · Sui · Aptos

Multi-Chain

Upgradeable contracts on Near, Sui, and Aptos. Same pattern, different instruction encoding.

Roadmap
The Security Ladder

Start where you are. Upgrade when you're ready.

Every level is better than what you have today. Every level uses the same tool.

Level 1 — Start here

Phantom, Solflare, or MetaMask

No CLI. No keypair file on disk. Your private key never leaves your browser wallet. Top-level signing — no middleware, no CPI, no limitations.

👻 Phantom  ·  🔥 Solflare  ·  🦊 MetaMask
✅ Live now — free forever
Level 2 — Production ready

Hardware Wallet

Private key never touches any internet-connected device. Physical possession required to sign. On-chain audit trail — cryptographic proof of every operation. GENIUS Act & CLARITY Act ready.

🟣 Tangem  ·  🔷 Keystone  ·  ⬛ Ngrave  ·  🔲 Ellipal
✅ Live now — free forever
Level 3 — Enterprise

Multi-Sig

No single person can sign. N-of-M hardware wallet approval required. Full governance trail on-chain. SOC 2 Type II. The strongest possible model for protocols with real TVL.

Any combination of hardware wallets
🔄 Coming 2027

The conversion path

Most developers start with Phantom, Solflare, or MetaMask — no hardware wallet needed, no CLI, better than anything available today. When your program has real value on mainnet, graduate to a hardware wallet with one transfer-authority transaction. When your protocol has significant TVL, add multi-sig governance. ColdAuth is the only tool that covers every step.

The Problem

Your wallet is stuck — whether it's Phantom, Solflare, or a hardware wallet.

Every existing tool fails when your program authority isn't a hot CLI keypair.

Solution Hardware Wallet Support Top-Level Signing Admin Operations Multi-Chain No Blind Signing Zero AI
WalletDeploy ✓ Yes ✓ Yes ✓ Yes ✓ Yes ✓ Yes ✓ Yes
CLI Tools ✗ Exposes key ✓ Yes ✓ Yes ✗ No ✗ No ✓ Yes
Squads / Gnosis Safe ✓ Yes ✗ No (CPI) ✗ Blocked ✓ Yes ✗ No ✗ No
Hardware Wallet Apps ✓ Yes ✓ Yes ✗ No UI ✗ Limited ✗ No ✓ Yes

Why this is permanent — and why WalletDeploy always wins

Every blockchain runtime enforces the same security invariant: administrative instructions must be top-level transactions signed directly by the authority. This is a security feature that will never change. Squads, Gnosis Safe, and every other middleware tool can never fix this — it's not a bug, it's the design. WalletDeploy submits instructions as top-level transactions, signed directly by your hardware wallet. No middleware. No CPI. No limitations. On every chain. Forever.

100% open source. Zero AI. Audit it right now.

ColdAuth is pure client-side HTML and JavaScript — no backend, no build pipeline, no AI inference layer. Press Ctrl+U (Cmd+U on Mac) to view every line of code running in your browser. There is no AI anywhere in this tool — no suggested transactions, no auto-fill, no ML models, no LLM calls. Every instruction is deterministically constructed from your inputs, byte-for-byte verifiable before signing. What you see is exactly what gets signed — nothing more, nothing less. Deploy operations derive ephemeral keypairs in-browser, funded by your cold wallet, to sign buffer writes locally. Your hardware wallet signs only the funding transaction and the final deploy/upgrade. Ephemeral keypairs are destroyed immediately after the operation completes, with unused SOL returned to your cold wallet. No telemetry. No blind signing. This is a stronger trust model than any GitHub repo, where published code and deployed code can differ.

How It Works

Five steps. Two taps.

No installation. No signup. No CLI. Just your browser and your wallet — Phantom, Solflare, or any hardware wallet.

1

Connect your wallet

Click Connect → choose Phantom or Solflare (browser extension, instant) or WalletConnect (QR code for Tangem, Keystone, or any hardware wallet). Takes 10 seconds.

2

Select your operation

Choose from program upgrades, authority transfers, buffer recovery, agent management, and more. For deploys: upload your .so file (or paste a buffer address). For upgrades/closes: enter the program address. ColdAuth handles the rest.

3

Tap to write buffer (deploy only)

For new deploys, ColdAuth chunks your .so file and writes it to a Solana buffer. Tap your hardware wallet to sign the buffer write. For upgrades/closes, skip to step 4.

4

Verify on your phone (optional)

Before every signing step, a QR code appears showing the full transaction details. Scan with your phone to see exactly what you’re signing — action, program address, all addresses in full — before approving. This is our no blind signing guarantee. Works on all operations: deploy, upgrade, freeze, close, transfer authority, buffer recovery.

5

Approve and broadcast

ColdAuth builds the final transaction and sends it to your wallet. Approve in Phantom or Solflare, or tap your Tangem card / scan with Keystone. Transaction submitted directly to the blockchain. Every operation includes an on-chain memo — a permanent audit trail of exactly what was signed.

Compatible Wallets

Any wallet. Any browser.

Start with the wallet you already have. Upgrade to a hardware wallet when you're ready.

👻 Phantom (browser extension)
🔥 Solflare (browser extension)
🟣 Tangem (NFC)
🔷 Keystone (QR)
⬛ Ngrave (QR)
🔲 Ellipal (Air-gapped)
+ Any WalletConnect v2 wallet

✅ EVM Support is Live

Ethereum, Base, Arbitrum, Optimism, Polygon — deploy and manage any contract from your cold wallet. Proven on Base mainnet with Tangem.

Launch EVM App →
Pricing

Free for developers. Enterprise for institutions.

All deployment and upgrade operations are free, forever. Upgrade to Enterprise for compliance, white-label, and multi-signature workflows.

✅ Free forever for developers.
Deploy, upgrade, close, transfer authority — unlimited operations, all chains, no account, no credit card, ever.

Enterprise

Custom
For stablecoins, protocols, and institutions
  • Everything in Free
  • GENIUS Act + CLARITY Act compliance
  • Legal opinion letter for regulatory filings
  • Multi-signature workflows (N-of-M approval)
  • White-label deployment + API access
  • Dedicated support + SLA

$50K-$150K/year — see full details below

Learn More →
Developer Tools

Three ways to manage your programs. Same security.

Choose your workflow — browser, terminal, or editor. All three use the same signing architecture: zero hot keys, on-chain audit trail, any wallet.

🌐 Web App ✅ Live

Open your browser, connect your wallet, manage programs. No installation. Works on any device with a browser. Best for quick one-off operations and first-time users.

Launch App →

⌨️ CLI ✅ Live

Interactive terminal sessions. Connect once, run multiple commands. Auto-extend on upgrade. Local program labels. Transaction history with memos. Best for power users and multi-operation workflows.

npm install -g walletdeploy-cli
View on npm →

💻 VS Code Extension ✅ Live

Inline buttons above declare_id!() macros. Hover for program status. Right-click to upgrade, transfer authority, or recover SOL. Deploy without leaving your editor.

Install from Marketplace →

JavaScript / TypeScript SDK

Build WalletDeploy operations into your own deployment scripts. Same transaction construction, same hardware wallet signing, fully programmable.

Coming soon

CI/CD Integration

Hardware wallet signing as a gate condition in deployment pipelines. Pipeline pauses, you approve on your wallet, pipeline continues. No hot keys in CI ever again.

Coming soon

Enterprise: Regulatory Compliance for Smart Contract Governance

When the SEC audits your stablecoin or regulators question your protocol's decentralization, WalletDeploy provides cryptographic proof on a public blockchain that every smart contract upgrade was authorized by your hardware cold wallet. Our compliance package includes legal opinion letters explaining why this satisfies GENIUS Act and CLARITY Act requirements. The conversation ends there.

Regulatory air cover — GENIUS Act + CLARITY Act compliant by design
Audit defense — immutable on-chain proof for SOC 2, SOX, SEC auditors
Legal opinion letter — signed by counsel for regulatory filings
Multi-signature workflows (N-of-M approval)
Role-based access control + SSO/SAML integration
API access + compliance dashboard for auditors
White-label deployment for hardware wallet manufacturers
Liability shield — industry-standard tooling from licensed vendor

ROI: Regulatory fine avoidance ($10M+) · SOC 2 certification (required to operate) · Legal defense costs ($500K-$5M) · Cost of building internally ($1M-$2M) · Your cost: $50K-$150K/year

Book a Demo
FAQ

Common questions

Do I need a hardware wallet?

No. Start with Phantom, Solflare, or MetaMask — your private key never leaves your browser wallet, no CLI required, and you get the full ColdAuth feature set. When your contract has real value on mainnet, graduate to a hardware wallet for cold storage security. Same tool, one step up.

Can I test before using real funds?

Yes. Use the devnet web app, run walletdeploy session -u devnet in the CLI, or switch to devnet in the VS Code extension — all the same features, no real SOL at risk. Works with Phantom, Solflare, or any WalletConnect wallet pointed at devnet.

How does pricing work?

ColdAuth is free forever for developers — unlimited operations, all chains, no account, no credit card, ever. Deploy, upgrade, close, freeze, recover SOL, transfer authority — all free. Enterprise pricing ($50K-$150K/year) is for stablecoin issuers, protocols, and institutions requiring GENIUS Act / CLARITY Act compliance, legal opinion letters, multi-signature workflows, and white-label deployment.

How do I know ColdAuth is safe?

ColdAuth is pure client-side HTML and JavaScript — press Ctrl+U (or Cmd+U on Mac) to audit every line. Deploy operations derive ephemeral keypairs in-browser, funded by your cold wallet, to sign buffer writes locally. Your hardware wallet signs only the funding transaction and the final deploy/upgrade. Ephemeral keypairs are destroyed immediately after the operation completes, with unused SOL returned to your cold wallet. No backend. No telemetry. No blind signing. This is a stronger trust model than a GitHub repo, where the published code and the deployed code can differ.

What about security?

ColdAuth never touches your private keys. Your hardware wallet signs every transaction locally. We build the transaction, send it to your wallet via WalletConnect, you approve it, and it's submitted directly to the blockchain. Zero custody. Zero risk.

Before signing, a QR code appears with the full transaction details. Scan it with your phone to verify exactly what you're signing — every address in full — before tapping your hardware wallet. Every operation also includes an on-chain memo as a permanent audit trail, visible on Solana Explorer.

Why can't Squads or Gnosis Safe do this?

Squads and Gnosis Safe route transactions through their own smart contracts (CPI on Solana, delegatecall on EVM). Blockchain runtimes permanently reject administrative instructions that don't come from a top-level transaction signed directly by the authority. This is a security feature, not a bug. ColdAuth submits top-level transactions, so it works for all admin operations.

Is EVM support live?

Yes. Deploy tokens, deploy any contract, and manage any verified contract on Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, and Avalanche. Connect via MetaMask or WalletConnect (Tangem, Ledger, any hardware wallet). Launch EVM App →

Can I use this with Ledger or Trezor?

Ledger can connect via WalletConnect in the CLI and web app. Trezor has limited WalletConnect v2 support and hasn't been verified. Tangem, Keystone, Ngrave, and Ellipal are fully confirmed working. If you've tested other wallets successfully, let us know at dev@walletdeploy.com.

Is ColdAuth regulated?

ColdAuth is infrastructure tooling — it signs transactions, nothing more. No tokens, no custody, no funds held, no private keys touched. It has no exposure to the GENIUS Act (stablecoin issuers) or CLARITY Act (digital asset trading). As regulatory frameworks push protocol teams toward verifiable admin key security, WalletDeploy’s audit logs provide cryptographic proof of every admin operation — who signed it, what was signed, and when.

Do you store any data?

The web app stores nothing — it's completely stateless. No wallet addresses, no transaction history, no user data. The CLI stores only local program labels (in ~/.walletdeploy/labels.json) so you can tag program IDs with names. No data is ever sent to our servers.

Trust Atom

Powered by the Trust Atom Protocol

Every contract you deploy through ColdAuth creates a Trust Atom — a verifiable, on-chain record of your governance identity. An open standard for composable trust across any chain.

Explore the Protocol →

Start with MetaMask or Phantom.
Graduate to cold storage.

Free forever for developers. No account. No credit card. Ever.

Solana → EVM →