We handle the gas.
$ npm install @smoothsend/sdkTrusted by
Teams shipping gasless experiences with SmoothSend
SmoothSend helps teams ship real user experiences without making gas management part of their product.
The developer advantage
Remove gas friction from your roadmap
Give users a better wallet experience while your team stays focused on the product.
Developer-sponsored gas
Cover gas for your users and give them a one-click flow. Configure exactly which functions your project sponsors.
Users pay in stablecoins
Let users pay transaction fees in the token they already hold. SmoothSend handles the native gas conversion behind the scenes.
Infrastructure you do not maintain
Skip custom paymaster and relayer operations. Use one SDK, dashboard, and API surface as your product grows across chains.
From integration to execution
One integration. Less infrastructure.
A developer-first flow for shipping gas abstraction without maintaining relayer infrastructure.
Install the SDK
Add SmoothSend to your app with a minimal SDK, wallet adapter, or API integration.
Choose your gas model
Sponsor gas yourself or let users pay in stablecoins. Set policies per project and function.
Route transactions
SmoothSend handles fee-payer execution, relaying, and the chain-specific infrastructure.
Ship without the overhead
Track usage and credits in the dashboard while your team focuses on the product experience.
What Developers Are Saying
Real feedback from developers building with SmoothSend SDK
"SmoothSend removed one of the biggest operational burdens for us. We no longer have to worry about gas sponsorship or paymaster infrastructure. Our users get a smooth and gasless experience on WhatsApp, and we get to focus on building the product instead of managing blockchain overhead. It’s been a game changer for us at this early stage."
Quick Access
Everything you need to get started with SmoothSend
EVM Demo
Try gasless EVM flows across Base, Arbitrum, and Avalanche.
Aptos dApp
Launch the Aptos application. Live on Mainnet & Testnet.
Developer Dashboard
Get your API key and manage your projects.
Developer Docs
Integration guides and API reference.
Get Test USDC
Circle testnet faucet for development.
GitHub
Open source code and contributions.
Latest updates and announcements.