> For the complete documentation index, see [llms.txt](https://cosmo.gitbook.io/cosmo-whitepaper-v1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cosmo.gitbook.io/cosmo-whitepaper-v1/introduction/cosmo-wallet.md). # Cosmo Wallet
### **Upgrade to the security of Cosmo MPC wallet** Discover the multi-chain crypto wallet with support for Bitcoin, Ethereum, Polygon, and 120+ cryptoassets. Powered by MPC instead of a vulnerable seed phrase. ### **Secure, Simple, All-in-one.** * [x] A true multi-chain wallet, from Bitcoin, Ethereum, Polygon, Doge and 120+ cryptoassets and NFTs. * [x] Buy, sell, and trade in a few simple taps. * [x] Store, view, and use NFTs, DeFi, and thousands of Dapps! ### **Self-custody more secure than a hardware wallet** Upgrade to the crypto wallet with no seed phrase vulnerability, powered and secured by MPC (Multi-Party Computation): Technology used by institutions to custody billions of dollars of crypto. Cosmo maintains the world’s largest open-source MPC library and holds multiple patents in consumer wallet security innovation. ### **What is an MPC Wallet?** TL;DR: “Not your keys, not your coins” has resulted in over $100 billion lost or stolen since the early 2010s. Cosmo is the leading MPC wallet that secures over 1 million customers. Check it out, or read below to learn more about MPC wallets