Always verify contract addresses from official sources before interacting with them

Contract Suite

Biconomy is versioning our smart contracts by groups. One “Suite” version contains many different versioned contracts within itself. The contracts being versioned are:
  • Nexus Account
  • Modular Execution Environment (MEE) K1 Validator (ERC-7579 Module)
  • Nexus Boostrap & Factory
  • Composability & Fusion Utils (Composable Storage, ETH Forwarder)

Versions

What’s New: New composability version - enables native token runtime injection

New addresses

Contract NameContract Address
Nexus Implementation v1.2.10x0E12B6ED74b95aFEc6dc578Dc0b29292C0A95c90
Nexus Account Factory0xDB1D73d8c7e8D50F760083449390b1D4080108dF
What’s New: K1 MEE module introduced - enables ERC-7702-delegated EOAs to own Nexus accounts

Nexus & MEE Validator

Contract NameContract Address
Nexus Implementation v1.2.00x00000000383e8cBe298514674Ea60Ee1d1de50ac
MEE K1 Validator v1.0.30x0000000031ef4155C978d48a8A7d4EDba03b04fE
Nexus Bootstrap v1.2.10x0000003eDf18913c01cBc482C978bBD3D6E8ffA3
Nexus Account Factory0x0000006648ED9B2B842552BE63Af870bC74af837

Composability & Utility

Contract NameContract Address
Composable Storage0x0000000671eb337E12fe5dB0e788F32e1D71B183
ETH Forwarder0x000000Afe527A978Ecb761008Af475cfF04132a1
Major release with Nexus 1.2.0, ERC-7702 support, and native composability

Nexus & MEE

Contract NameContract Address
Nexus Implementation v1.2.00x000000004F43C49e93C970E84001853a70923B03
MEE K1 Validator v1.0.10x00000000d12897DDAdC2044614A9677B191A2d95
Nexus Bootstrap v1.2.10x00000000D3254452a909E4eeD47455Af7E27C289
Nexus Account Factory0x000000001D1D5004a02bAfAb9de2D6CE5b7B13de
MEE EntryPoint & Paymaster0xE854C84cD68fC434cB3B0042c29235D452cAD977

Composability & Utility

Contract NameContract Address
Composable Storage0x0000000671eb337E12fe5dB0e788F32e1D71B183
ETH Forwarder0x000000Afe527A978Ecb761008Af475cfF04132a1
Compiled for EVM Paris (No PUSH0, no MCOPY, no TSTORE)

Nexus & MEE

Contract NameContract Address
Nexus Implementation v1.0.20x000000001964d23C59962Fc7A912872EE8fB3b6A
MEE K1 Validator v1.0.30x00000000E894100bEcFc7c934Ab7aC8FBA08A44c
Nexus Bootstrap v1.0.00x000000c4781Be3349F81d341027fd7A4EdFa4Dd2
Nexus Account Factory0x0000000C8B6b3329cEa5d15C9d8C15F1f254ec3C

Composability & Utility

Contract NameContract Address
Composability Module0x000000eff5C221A6bdB12381868307c9Db5eB462
Composable Storage0x0000002C2A3b6DA7dfa38AAcdD950097B30B108d
ETH Forwarder0x000000001f1c68bD5bF69aa1cCc1d429700D41Da
Added Nexus Account Factory at 0x000000903887EA36EBe051038287f49fD4A07733
Initial release - Requires manual installation of MEE K1 validator and Composability module
GitHub Release →

Nexus & MEE

Contract NameContract Address
Nexus Implementation v1.0.20x000000aC74357BFEa72BBD0781833631F732cf19
MEE K1 Validator v1.0.10x00000000d12897DDAdC2044614A9677B191A2d95
Nexus Bootstrap v1.0.00x879fa30248eeb693dcCE3eA94a743622170a3658
Nexus Account Factory0x000000c3A93d2c5E02Cb053AC675665b1c4217F9
MEE EntryPoint & Paymaster0xE854C84cD68fC434cB3B0042c29235D452cAD977

Composability & Utility

Contract NameContract Address
Composability Module0x00000004430bB055dB66eBef6Fe5Ee1DA9668B10
Composable Storage0x0000000671eb337E12fe5dB0e788F32e1D71B183
ETH Forwarder0x000000Afe527A978Ecb761008Af475cfF04132a1

Nexus Audits

Stack Audits


Legacy Contracts

These contracts are deprecated. Use the latest version for new deployments.
Contract NameContract Address
Nexus Implementation0x000000008761E87F023f65c49DC9cb1C7EdFEaaf
K1 Validator0x0000002D6DB27c52E3C11c1Cf24072004AC75cBa
K1 Validator Factory0x00000024115AA990F0bAE0B6b0D5B8F68b684cd6
Account Factory0x000000226cada0d8b36034F5D5c06855F59F6F3A
Bootstrap0x000000F5b753Fdd20C5CA2D7c1210b3Ab1EA5903
EntryPoint V70x0000000071727de22e5e9d8baf0edac6f37da032

Base & Optimism

Contract NameContract Address
Sponsorship Paymaster0x0000006087310897e0BFfcb3f0Ed3704f7146852
Token Paymaster0x00000000301515A5410e0d768aF4f53c416edf19

Other Chains

Contract NameContract Address
Sponsorship Paymaster0x00000072a5F551D6E80b2f6ad4fB256A27841Bbc
Token Paymaster0x00000000301515A5410e0d768aF4f53c416edf19

Integration Support

Need help integrating these contracts? Check our integration guide for detailed instructions and code examples.