Documentation>Introduction

About SmoothSend

SmoothSend is gasless transaction infrastructure for Aptos and Avalanche. Whether you're building your first dApp or scaling a production application, SmoothSend lets your users transact without ever paying gas fees.

With SmoothSend, you can:

  • Start with a chain-aware quickstart path from Getting Started (Aptos or Avalanche).
  • Ship Zero-Config Avalanche gasless sponsorship in minutes with AVAX Auto-Pilot via @smoothsend/sdk/avax. Convert any wagmi app to gasless with a 1-line overhaul.
  • Build Aptos fee-in-token transfers with Script Composer — no APT needed.
  • Configure Aptos Sponsorship Rules to control exactly which transactions you sponsor.
  • Ensure economic sustainability with Precision Gas Pricing floors that adapt to network volatility automatically.
  • Instantly generate API keys for access to gasless relayer infrastructure.
  • Monitor usage, manage API keys, and top up credits from the Dashboard.
  • Use the MCP integration to interact with SmoothSend from AI coding agents.

SmoothSend is designed to simplify web3 onboarding, eliminate gas fee friction, and help you deliver great blockchain experiences — fast.

Ready to get started? start with the chain selection guide.