Para, formerly Capsule, provides wallet-as-a-service and authentication infrastructure for fintech and crypto products. Its platform helps businesses add embedded, non-custodial wallets to web, mobile, and server applications without building key management and wallet authentication from scratch. Developers can onboard users through email, phone, or social login and support wallets across EVM-compatible networks, Solana, Stellar, and other chains.

Para’s SDKs and APIs also support money movement, including transfers, stablecoin payments, onramps, offramps, swaps, and cross-chain bridging through APIs and partner integrations. Organizations can use its policy engine and permissions tools to set transaction rules and access controls, with options to customize and white-label the experience.

Wallet security uses a 2-of-2 multi-party computation system: key shares are distributed between the user’s device and Para’s infrastructure, so the complete private key is never held in one place. Additional protections include passkeys, secure enclaves, biometrics, and distributed signing. Para offers a free tier for up to 1,200 monthly active wallets, with no card required.