How to Pick a Bitcoin Checkout API
TL;DR
Requirement
Best Fit
Core Reason
Non-custodial, direct-to-wallet, low friction
Blockonomics
No custody, simple API, 1% flat fee
Full self-hosting + zero fees + max privacy
BTCPay Server
You run the infra, no middlemen
Fiat settlement, enterprise compliance, banking rails
BitPay / Coinbase Commerce
Custodial, KYC, corporate features
Multi-coin payments + fiat conversion