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🚀 MEE Contracts and versions

The Modular Execution Environment (MEE) is Biconomy’s Smart Account and Execution infrastructure (which is compliant with and built on ERC 4337) that enables gasless transactions and modular execution flows. Below is a comprehensive list of supported chains and their corresponding MEE versions. On the Biconomy Dashboard, set up a project on the Supertransaction tab, get an API key and you will have full access to all chains with just one API key. For detailed information about contract addresses and audit reports for each version, please check our contracts and audits page.
NetworkMEE Versions
Ethereum Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
Base Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
Polygon Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
Arbitrum Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
OP Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
BSC Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
Sonic Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
Scroll Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
Gnosis Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0, 1.0.0
Avalanche Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0
Apechain2.2.1, 2.1.0, 2.0.0, 1.1.0
Hyper EVM2.2.1, 2.1.0, 2.0.0, 1.1.0
Sei Mainnet2.2.1, 2.1.0, 2.0.0, 1.1.0
Unichain Mainnet2.2.1, 2.1.0, 1.1.0
Katana Mainnet2.2.1, 2.1.0, 1.1.0
Lisk Mainnet2.2.1, 2.1.0, 1.1.0
Worldchain Mainnet2.2.1, 2.1.0, 1.1.0
Monad Mainnet2.2.1, 2.1.0
Plasma Mainnet2.2.1, 2.1.0

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🔧 ERC-4337 Infra Support

We are not supporting new chains with this infrastructure. Any new chains we support will utilise our newer and advanced MEE stack, and thus the newer chain support are added to the above MEE Contracts and Services list.If you are a new developer, or starting a new project to find the chains we support, do not reference this list.
Why did we move to MEE in favour of ERC 4337? You can learn more here.
All features supported: Bundler, Sponsorship PM, Token PM, Contracts, and Nexus v1.0.2
NetworkBundlerSponsorship PMToken PMContractsNexus
Ethereum Mainnet✅✅✅✅✅
Ethereum Sepolia✅✅✅✅✅
Base Mainnet✅✅✅✅✅
Base Sepolia✅✅✅✅✅
OP Mainnet✅✅✅✅✅
OP Sepolia Testnet✅✅✅✅✅
Scroll Mainnet✅✅✅✅✅
Scroll Sepolia Testnet✅✅✅✅✅
Arbitrum Mainnet✅✅✅✅✅
Arbitrum Sepolia Testnet✅✅✅✅✅
Binance Smart Chain Mainnet✅✅✅✅✅
Binance Smart Chain Testnet✅✅✅✅✅
Polygon Mainnet✅✅✅✅✅
Gnosis Mainnet✅✅✅✅✅
Sonic Mainnet✅✅✅✅✅
Blast Mainnet✅✅✅✅✅

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Sponsorship Paymaster Contracts

ChainsContract Address
Base & OP0x0000006087310897e0BFfcb3f0Ed3704f7146852
Other chains0x00000072a5F551D6E80b2f6ad4fB256A27841Bbc
NetworkTestnetMainnet
Ethereum✅✅
Polygon✅✅
BSC✅✅
Polygon zkEVM✅✅
Arbitrum One✅✅
Arbitrum Nova✅✅
Optimism (Sepolia)✅✅
Avalanche✅✅
Base✅✅
Linea✅✅
Chiliz✅✅
Astar✅✅
opBNB✅✅
Manta✅✅
Core✅✅
Combo✅✅
Mantle (Sepolia)✅✅
Blast✅✅
Zeroone✅✅
Scroll✅✅
Zetachain✅✅
Gnosis✅✅
X Layer✅✅
Tangle✅✅
Taiko✅
Morph✅✅
Sei (Devnet)✅✅
Boba✅✅
5irechain✅✅
Metal L2✅✅
Lisk✅✅