Welcome to sw4p
sw4p enables gasless cross-chain transfers across any blockchain. Users sign permits or transactions with their wallet, and sw4p handles all bridging infrastructure.Quick Start
Get started in under 5 minutes
TypeScript SDK
npm install @sw4p/bridge
Rust SDK
cargo add sw4p-bridge
API Reference
REST API documentation
Vision
Support every blockchain, every stablecoin, and every native token. Current MVP supports:- EVM Chains: Ethereum, Base, Arbitrum, Polygon
- Non-EVM: Solana
- Tokens: USDC (more coming soon)
Key Features
Gasless Transfers
Gasless Transfers
Users don’t need native tokens for gas. sw4p sponsors gas costs through permit-based approvals.
Non-Custodial
Non-Custodial
SDKs never handle private keys. All signing happens in the user’s wallet.
Fast
Fast
Transfers complete in approximately 60 seconds across all supported routes.
Transparent Fees
Transparent Fees
Know the exact cost before confirming. Fee estimates include all gas and bridge costs.