Openfort

Provides open-source wallet infrastructure and SDK for stablecoin products that lets applications create self-custodial wallets to hold, move, trade and spend digital assets like USDT, with spending policies, funding via cards/banks/tokens, and agent wallets. Serves software developers and engineering teams at B2B companies and startups building fintech products such as neobanks, payouts, payroll and remittances. Positioned as an open-source, self-hostable alternative to Privy where teams own key management via an auditable signing stack instead of custodial closed-source infrastructure.

Key features

• Self-custodial embedded wallets
• Multiple wallets per user
• Wallet recovery built in
• Spending policies and limits
• Agent wallets for AI agents
• Funding via cards and banks
• Token routing and swapping
• Gas sponsorship
• ERC-4337 multi-chain support
• Sub-200 ms signing
• Open-source self-hostable key management
• Auto-scaling infrastructure
• Real-time webhooks
• Direct smart contract interaction
• Bring your own auth provider
• React Expo Unity Node SDKs
• Batch payouts and payroll
• Subscription and recurring payments