JOIN
JOIN is a smart-contract wallet with MPC custody, gas abstraction, and a built-in EUR IBAN that gives users self-custody and fiat banking in one app.
What is JOIN?
JOIN is a smart-contract wallet for individuals and businesses. Personal users get an ERC-4337 account with MPC custody from Dfns, gas-fee abstraction (pay gas in USDC), one-click cross-chain swaps across Ethereum, Arbitrum, Base, Polygon, Solana, and 8+ chains, plus a personal SEPA vIBAN. JOIN Pro adds Safe-based treasury controls and curated DeFi strategies for funds and DAOs.
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Developer resources from Alchemy
12 Solidity smart contract security best practices
Secure your smart contracts with these expert security tips and tools.
Smart accounts adoption accelerated in Q4 2023
ERC-4337 smart account adoption saw major growth in the fourth quarter of 2024, surpassing 1 million total deployed accounts!
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JOIN alternatives
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FluidkeyApp store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.
