Trusted by 10,000+ developers

Secure, ScalableWeb3 Wallets

Custodial wallets with account abstraction & hybrid authentication for dApps. Build the future of Web3 user experience.

Wallet Infrastructure

MPC Security • Account Abstraction • Multi-Chain

Live

Supported chains

EthereumBSCOptimismArbitrumAvalanche

Powerful Features

Everything you need to build secure, user-friendly Web3 applications

Custodial Infrastructure

MPC-based key management with SOC2 compliance and enterprise-grade security.

Account Abstraction

Gasless transactions and social recovery powered by ERC-4337 standard.

Hybrid Authentication

Social logins, biometrics, and multi-factor authentication options.

Embedded Wallets

Customizable UI components with seamless API integration.

Multi-Chain Support

Native support for Ethereum, Solana, Polygon, and more.

Privacy-First

Minimal data collection with optional zero-knowledge proofs.

Built for Everyone

From developers to enterprises to end users - Key3 delivers value at every level

For Developers

Integrate wallet functionality in minutes with our comprehensive APIs and SDKs. Focus on building great products, not infrastructure.

  • REST & GraphQL APIs
  • Client SDKs
  • Sandbox Environment
  • 24/7 Support

For Enterprises

Scale to millions of users while maintaining compliance and security standards. Custom solutions for your specific needs.

  • Enterprise SLAs
  • Volume Pricing
  • Compliance Tools
  • Dedicated Support

For Users

Experience Web3 without the complexity. No private keys to manage, no gas fees to worry about.

  • No Gas Fees
  • Social Recovery
  • Biometric Login
  • Cross-Device Sync

Endless Possibilities

Power any Web3 application with our flexible wallet infrastructure

DeFi

NFTs

Gaming

Loyalty

Developer Experience

Comprehensive tools and documentation to get you building faster

APIs & SDKs

Complete REST and GraphQL APIs with client SDKs for React, React Native, Flutter, and more.

Code Examples

Copy-paste code snippets and examples for fast integration across all major frameworks.

Sandbox Environment

Test and simulate wallet flows instantly with our full-featured development environment.

Enterprise Security

Bank-grade security with cutting-edge cryptography and compliance standards

MPC Security

Multi-party computation ensures no single point of failure with distributed key management.

Compliance Ready

GDPR, CCPA, SOC2 compliant with regular security audits and penetration testing.

Audited & Secure

Independent security audits by leading firms and active bug bounty programs.

Simple Pricing

Start free and scale as you grow. No hidden fees, no surprises.

Free Tier

$0/mo

For early-stage devs, startups, and small dApps.

  • Up to 1,000 MAWs
  • Basic account abstraction (ERC-4337)
  • Gasless transactions
  • Hybrid auth (social/email OTP)
  • Single-chain support (Ethereum or Polygon)
  • Basic API & UI customization

Growth Tier

$99/mo + $0.01/tx

For growing dApps and mid-sized businesses.

  • Up to 10,000 MAWs
  • Multi-chain support (Ethereum, Solana, Polygon, etc.)
  • Advanced account abstraction
  • Social recovery, batch txs
  • Embedded wallet SDKs, white-label UI
  • Basic compliance tools
Most Popular

Scale Tier

$499/mo + $0.005/tx

For large dApps and enterprises.

  • Up to 100,000 MAWs
  • Full multi-chain compatibility
  • Premium account abstraction
  • Custom tx policies, MEV protection
  • Advanced compliance (KYC/AML)
  • Priority support, account manager

Enterprise Tier

Custom

For major brands, retailers, and gaming platforms.

  • Unlimited MAWs
  • Custom integrations (loyalty, NFT, etc.)
  • Enterprise security (MPC, audits)
  • Full compliance suite, 24/7 support
  • Custom API rate limits

Incentives & Rebates

  • Transaction Discounts: 10-20% off transaction fees for users holding the platform's native token (if applicable).
  • Volume Rebates: 5% off for 10,000+ monthly transactions, with more tiers for higher volume.
  • Referral Program: Refer a developer and get 1 month free on Growth or Scale tier.

Ready to build the next big thing?

Get started with Key3 and launch your Web3 wallet experience in minutes.