Build Multi-Chain Wallets in Minutes
Open-source SDK for building self-custodial wallets. Production-ready with support for Bitcoin, Ethereum, Solana, TON, and more.
100K+
Wallets Created
50+
Supported Chains
100%
Open Source
Everything you need to build wallets
A complete toolkit for building production-grade wallet applications, from key management to multi-chain transactions.
Multi-Chain
Use Bitcoin, Ethereum, Polygon, Solana, TRON and more from one SDK.
Modular Architecture
Use only the blocks you need. Add chains, swap providers, and more as you grow.
Open Source
Fully auditable code. No vendor lock-in. Fork and customize to your needs.
Self-Custodial
Users control their keys. You never touch private keys. True self-custody.
Production Ready
Battle-tested in production by major apps, with thousands of wallets created.
Developer First
TypeScript SDK, React Native components, comprehensive docs, and examples.
Indexer API
Query balances, transactions, and history across chains with one fast API.
Enterprise Ready
MPC support, hardware wallet integration, and compliance features available.
Modular by design
Pick the building blocks you need - wallets, swaps, bridges, lending, fiat on-ramps. Compose them into your perfect wallet stack.
Wallet Modules
Self-custodial wallets, any chain
Swap & Bridge Modules
DEX aggregation & cross-chain bridging
Lending Modules
Lending & yield protocols
Fiat Modules
Fiat on/off-ramps & payments
Community Modules
Built & shared by the community
Simple, powerful API
Get started with just a few lines of code. Our TypeScript SDK provides a clean, intuitive API for all wallet operations across multiple chains.
- Unified API across all supported chains
- Full TypeScript support with autocomplete
- Tree-shakeable building blocks for smaller bundles
- Built-in error handling and retries
See how WDK compares
See how WDK stacks up against popular wallet SDK alternatives. Compare features, pricing, and capabilities to make the right choice for your project.
WDK vs Other SDKs
Architecture
Open Source
WDK
Other SDKs
Open Source
Self-Custodial
WDK
Other SDKs
Self-Custodial
Cloud APIs
WDK
Other SDKs
Cloud APIs
Capabilities
Multi-Chain Support
WDK
Other SDKs
Multi-Chain Support
Fully Extensible
WDK
Other SDKs
Fully Extensible
Pricing
Free Forever
WDK
Other SDKs
Free Forever
No Vendor Lock-In
WDK
Other SDKs
No Vendor Lock-In
Ready to build your wallet?
Open-source SDK for building self-custodial wallets. Production-ready with support for Bitcoin, Ethereum, Solana, TON, and more.
