MEE Replaces Bundlers and Paymasters: Traditional ERC-4337 implementations require configuring separate bundlers (for transaction submission) and paymasters (for gas sponsorship). Biconomy’s MEE (Modular Execution Environment) supersedes both, providing unified gas sponsorship, transaction bundling, and cross-chain orchestration in a single, simpler interface.
The Problem
72% Drop-Off
Users abandon when asked for gas
Wrong Token
Users have USDC but need ETH
Surprise Costs
Unexpected fees kill trust
Complex UX
Gas estimation confuses users
The Solution
Biconomy offers three approaches to eliminate gas friction:| Approach | Who Pays | Best For |
|---|---|---|
| Sponsored | You (developer) | Onboarding, promotions, premium features |
| Pay in Tokens | User (in ERC-20) | Users with stablecoins, no native tokens |
| Cross-Chain Gas | User (from any chain) | Users with funds on different chains |
Who Should Go Gasless?
Consumer Apps
Users are crypto-novice
Onboarding friction kills growth
Small transaction values (gas > value feels wrong)
DeFi Applications
Multi-step transactions (approve + swap + stake)
Cross-chain operations
Users already hold ERC-20 tokens
Enterprise & B2B
End users shouldn’t think about blockchain
Predictable costs (you control spending)
White-label solutions
Choose Your Approach
- Sponsored Gas
- Pay in Tokens
- Cross-Chain Gas
You pay for everything. Users never see or think about gas.Best for:
- New user onboarding
- Free trials and promotions
- Premium/paid features
- High-value conversions
How It Works
Users sign messages, not transactions. This means no wallet pop-ups asking about gas, no “speed up” or “cancel” options—just a clean signature request.
No More Bundler/Paymaster Configuration: Unlike traditional ERC-4337 setups where you configure bundler URLs and paymaster URLs separately, MEE provides all this functionality through a single API key and unified interface.
Supported Tokens
Any ERC-20 with liquidity can be used for gas:| Category | Examples |
|---|---|
| Stablecoins | USDC, USDT, DAI, FRAX, LUSD |
| Wrapped | WETH, WBTC, wstETH |
| Yield | aUSDC, stETH, sDAI |
| LP | Uniswap, Curve positions |
| Governance | UNI, AAVE, ARB, OP |