Cosine Wallet
a self-custody multi-chain wallet with gasless swaps and a virtual spending card.
What is Cosine Wallet?
Cosine Wallet is a self-custody multi-chain mobile wallet across Ethereum, Base, Optimism, Polygon, BNB Chain, Arbitrum, and Avalanche. Users hold their own keys, run gasless swaps, on- and off-ramp with 180+ local payment methods via Onramper, manage NFTs, and spend crypto online through a built-in virtual card.
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Developer resources from Alchemy
How do ERC-4337 smart contract wallets work?
Learn How ERC-4337 Compliant Smart Contract Wallets Work
Alchemy Smart Wallets support J.P. Morgan's historic USD deposit token launch
We're proud to announce J.P. Morgan's launch of its first USD deposit token proof of concept on a public blockchain, supported by Alchemy's enterprise-grade infrastructure and smart wallets.
How Exa App reimagined banking with smart wallets
Case study: How Exa App transformed crypto banking with smart wallets, eliminating gas fees and seed phrases for users while reducing their costs by 20x
Cosine Wallet alternatives
Explore web3 competitors and apps like Cosine Wallet.
MetaMask
TokenPocket
Cypher Wallet
LF WalletApp 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.
