v2.0 — Multi-Field Vault + AES-256-GCM

One Password.
All Your API Keys.

Military-Grade Encryption. Zero Cloud. Pay Once.

Stop storing API keys in plaintext. API Key Vault 2.0 encrypts and organizes all your credentials behind a single master password — offline, portable, and yours forever. No subscriptions. No cloud. No risk.

$9.99
One-time purchase. Own forever.
No subscription. No recurring fees.
AES-256-GCM
Authenticated encryption
310K
PBKDF2 iterations
~74MB
Portable EXE
API Key Vault 2.0 — by ProTusk
🔍Search keys... (Ctrl+K)
💰
Alpaca Trading
Finance
3 fields
••••••xJ9k
🤖
OpenAI GPT-4
AI / ML
2 fields
••••••f3Qp
☁️
AWS Production
Cloud
4 fields
••••••aW2m
💻
Stripe Live Keys
Payments
2 fields
••••••7Rnx
🔒AES-256-GCM
Zero-knowledge vault
🛡️Portable EXE
No install needed

⚠️ The Problem

Developers and teams juggle dozens of API keys, tokens, and secrets across multiple services — from cloud providers like AWS to AI platforms like OpenAI, trading APIs like Alpaca, and payment processors like Stripe.

These credentials are often stored in plaintext files, sticky notes, or scattered across password managers not designed for developer workflows.

The average cost of a credential-related breach exceeds $4.5 million (IBM, 2024)

⚡ The Solution

API Key Vault 2.0 is a lightweight, portable desktop application purpose-built for managing API credentials. Single executable — no installation, no cloud, no account creation.

  • Zero-knowledge architecture: All encryption happens locally. No server, no sync, no telemetry.
  • Multi-field entries: Store API key + secret key + region in a single organized card.
  • One-click copy with auto-clear: Clipboard wiped after 30 seconds.
  • Portable EXE: No admin rights needed. Runs from USB, desktop, or any folder.
Features

Everything a Developer Needs.
Nothing They Don't.

Built with AES-256-GCM encryption and PBKDF2 key derivation, your secrets are protected by the same cryptographic standards used by financial institutions and government agencies.

🔒

AES-256-GCM Encryption

Military-grade authenticated encryption for all stored credentials. Each entry encrypted with a unique IV. GCM mode provides both confidentiality and authenticity.

Security
🔐

PBKDF2 Key Derivation

310,000 iterations of SHA-256 transforms your master password into an encryption key, making brute-force attacks computationally infeasible.

Security
📂

Multi-Field Entries

Group related credentials together — API Key, Secret Key, Region, Endpoint — in a single organized card with individual copy buttons.

Productivity
📋

One-Click Copy + Auto-Clear

Copy any field to clipboard instantly. Clipboard auto-clears after 30 seconds to prevent accidental exposure of sensitive credentials.

UX

Auto-Lock

Vault automatically locks after 5 minutes of inactivity. Re-authentication required. Ctrl+L for instant manual lock.

Security
💡

Password Hint

Optional encrypted hint helps you remember your master password without compromising security. Stored with obfuscation encryption.

UX
📁

Category Organization

Tag keys by category — Finance, AI/ML, Cloud, Payments, Dev Tools — with instant search (Ctrl+K) and filter support.

Productivity
📥

Import / Export

Backup and restore your encrypted vault. Transfer securely between machines. Your vault is a single encrypted binary file.

Productivity
🚀

Portable EXE

Single ~74MB executable. No installation, no admin rights, no runtime dependencies. Runs from any folder or USB drive.

Portable
Security Architecture

Zero-Knowledge by Design

The master password never leaves the application, is never stored on disk, and is never transmitted anywhere. All cryptographic operations happen in-process using native crypto APIs.

1

Key Derivation

PBKDF2 with 310,000 iterations of SHA-256 derives a 256-bit key from your master password plus a random 32-byte salt.

2

Encryption

AES-256-GCM encrypts the entire vault using a random 16-byte IV. GCM provides both confidentiality and authenticity.

3

Secure Storage

Salt + IV + Auth Tag + Ciphertext stored as a single binary blob. No metadata readable without the correct password.

4

Runtime Protection

Auto-lock after 5 min idle, clipboard auto-clear after 30 sec, password hint stored with obfuscation encryption.

Vault File Format (vault.dat)

Salt32 bytes — random, unique per vault
IV16 bytes — random per encryption
Auth Tag16 bytes — GCM integrity proof
CiphertextVariable — your encrypted vault
How It Works

From Download to Secure in 60 Seconds

No accounts, no cloud signup, no configuration. Buy, download, and start securing your keys.

1

Buy & Download

Purchase on LemonSqueezy and download the portable EXE (~74MB). No installer — just extract and run. Works from any folder, USB drive, or desktop. No admin rights required.

2

Set Your Master Password

Choose a strong master password. This derives the AES-256-GCM encryption key via PBKDF2 with 310,000 iterations — zero-knowledge means we never see or store your password.

3

Add Your API Keys

Add services with multiple credential fields (API key + secret + region + endpoint). Categorize by Finance, AI/ML, Cloud, Payments, or Dev Tools. Add notes for context.

4

Work Securely, Always

One-click copy puts any value on your clipboard, which auto-clears after 30 seconds. Vault auto-locks after 5 minutes. Keyboard shortcuts for lightning-fast workflows.

Who It's For

Built for Every Technical Professional

From solo devs to fintech teams — if you manage API credentials, Vault 2.0 is built for you.

📈

Fintech & Trading Developers

Manage exchange API keys and secrets for Alpaca, Coinbase, Interactive Brokers, Polygon.io, and payment processors. Keep trading credentials encrypted and organized.

AlpacaCoinbasePolygon.ioStripe
🤖

AI / ML Engineers

Keys for OpenAI, Anthropic, Hugging Face, Replicate — organized and encrypted. Switch between project keys without exposing credentials in env files.

OpenAIAnthropicHuggingFaceReplicate
☁️

DevOps Engineers

Cloud provider credentials (AWS, GCP, Azure) across environments. Multi-field entries store access key + secret + region + endpoint together.

AWSGCPAzureDigitalOcean
💻

Solo Devs & Small Teams

A lightweight secrets solution without enterprise overhead like HashiCorp Vault. Managing keys for client projects across platforms? Vault 2.0 keeps it organized.

FreelancersContractorsStartupsHobbyists
Compare

Why Pay Monthly When You Can Own It?

SaaS alternatives cost $48–216/year per user. API Key Vault 2.0 costs $9.99 once.

ProductPricingTypeKey Difference
1Password$4–8/user/moSaaSGeneral password manager, not API-focused
Doppler$8–18/user/moSaaSTeam secrets manager, requires cloud
HashiCorp Vault$1.58/hr+EnterpriseComplex setup, server-based
Bitwarden$0–6/user/moSaaSGeneral passwords, limited dev features
Infisical$6–12/user/moSaaSOpen source alt, still cloud-dependent
API Key Vault 2.0Free / $9.99 one-timeDesktopFree tier + paid. Offline, portable, zero-knowledge, no subscription
Pricing

Try Free. Pay Once. Own Forever.

Start with the free version — no account, no credit card. Upgrade when you need the full vault.

Free
$0
Free Forever
Try it out — no strings attached
  • Up to 5 API keys
  • AES-256-GCM encryption
  • Single-field entries only
  • 2 categories
  • No import / export
  • No multi-field entries
Download Free
Personal
$9.99
One-Time Purchase
Solo developers & hobbyists
  • Unlimited API keys
  • Lifetime updates
  • AES-256-GCM encryption
  • Multi-field entries
  • All categories
  • Import / Export
Buy Personal — $9.99
Professional
$19.99
One-Time Purchase
Freelancers & contractors
  • 3-device license
  • Lifetime updates
  • Priority support
  • AES-256-GCM encryption
  • Multi-field entries
  • All categories & shortcuts
Buy Professional — $19.99
Team Pack
$49.99
One-Time Purchase
Small teams & startups
  • 10 licenses
  • Team deployment guide
  • Priority support
  • Lifetime updates
  • AES-256-GCM encryption
  • Everything in Professional
Buy Team Pack — $49.99
Paid tiers sold on LemonSqueezy — secure payment, instant delivery, license key generation, and global tax handling. Free version: direct download, no account needed.
Testimonials

Loved by Developers Who Ship

★★★★★

"I manage 40+ trading API keys across Alpaca, Coinbase, and Polygon. Finally a vault that doesn't phone home. Multi-field entries are exactly what I needed — key, secret, and endpoint in one card."

M
Marcus R.
Quantitative Developer
★★★★★

"$9.99 one-time vs $96/year for 1Password? Easy choice. I keep it on a USB drive and it works anywhere. No install, no admin rights. The 30-second clipboard clear is a nice security touch."

J
James L.
Freelance DevOps Engineer
★★★★★

"We bought the Team Pack for our 6-person startup. Way simpler than HashiCorp Vault, and it does exactly what we need — organize and encrypt API keys without enterprise overhead."

S
Sarah K.
CTO, Early-Stage Startup
Technical Specifications

Under the Hood

PlatformWindows 10/11 (x64)
RuntimeElectron 33
EncryptionAES-256-GCM
Key DerivationPBKDF2-SHA256 310K
File Size~74 MB portable
Data Storagevault.dat (encrypted)
DependenciesNone — self-contained
Network AccessNone — fully offline
Admin RightsNot required
LicensePer-user, lifetime

Stop Storing API Keys
in Plaintext.

One password. All your API keys. Military-grade encryption. Pay once, own forever.

Starting at $9.99 — no subscription, no recurring fees
Buy Now on LemonSqueezy View 21st SDK
Find us on RedditHacker NewsDev.toProduct HuntTwitter/X
ProTusk

ProTusk AI Assistant

Powered by 21st SDK • Online

Hey! 👋 I'm the ProTusk assistant, built with the 21st SDK. Ask me about features, pricing, security, or how Vault 2.0 compares to alternatives!
Powered by @21st-sdk/react AgentChat