ZendFi is a fullstack crypto payment infrastructure for developers. We provide APIs for payments, subscriptions, escrows, installments, and invoices on Solana. Accept USDC, SOL, and USDT with MPC wallets (passkey authentication) or your own wallet.

ZendFi is built for developers, SaaS companies, marketplaces, freelancers, and businesses that want to accept crypto payments. Whether you're building a subscription service, marketplace with escrow, or need to send invoices - we've got you covered.

No! With ZendFi's MPC wallets, customers just use Face ID or Touch ID - no wallet apps, seed phrases, or crypto knowledge needed. We handle everything behind the scenes. Customers/Payers click on a simple 'Pay' button and confirm the transfers in their wallets, we handle the blockchain complexity. It's as easy as Apple Pay, but with crypto.

Most developers integrate ZendFi in under 30 minutes! Simply create a merchant account (2 min), get API keys (instant), make your first payment (5 min). Our SDKs for JavaScript/TypeScript and CLI tools make it even faster. Full documentation with code examples included.

Integrate our API in minutes. Create a merchant account, get your API keys, and start accepting payments. We handle wallet generation (MPC with Face ID/Touch ID), payment processing, settlements, and webhooks. We help you setup non-custodial MPC wallets that can be secured using just their fingerprint - no seed phrases needed.

ZendFi supports one-time payments, recurring subscriptions (monthly/yearly), escrow transactions for marketplaces, installment plans (buy now pay later), professional invoices with line items, and payment links. All with optional automatic USDC settlement and real-time webhooks.

Yes! Every merchant account gets test mode API keys (zfi_test_...) and live mode keys (zfi_live_...). Test mode uses Solana devnet - create unlimited test payments without spending real money. Switch to live mode when ready with a single environment variable change.

Absolutely. We use MPC (Multi-Party Computation) wallets with passkey authentication (Face ID/Touch ID), end-to-end encryption, and industry-standard security. All transactions are on-chain and verifiable. We're non-custodial - you always control your funds.

ZendFi is free to integrate - no setup fees or monthly charges. We only charge a small transaction fee when you get paid. Transparent pricing, no hidden costs. Check our documentation for current rates or contact us for enterprise pricing.