BTCPay Server vs Flexa: Self-Custodial vs Hosted Gateway
BTCPay Server is an open-source, self-hosted payment processor built for direct Bitcoin and Lightning Network acceptance. Flexa is a regulated commercial payment network based in New York that facilitates transactions across 99 or more digital assets.
The central divide rests on custody and server control. BTCPay Server operates under an MIT license, letting merchants run their own instances with 0% processing fees, no business verification, and direct wallet settlement. Flexa runs a managed payment infrastructure backed by its AMP collateral system on Ethereum, requiring KYB compliance while delivering sub-second checkout authorizations and optional fiat auto-conversion.
Quick verdict
The choice between BTCPay Server and Flexa comes down to server autonomy versus managed payment infrastructure with multi-asset and fiat settlement options.
Choose BTCPay Server if you want complete control over your private keys and infrastructure, pay 0% processing fees, accept Bitcoin and Lightning payments without corporate onboarding, and possess the technical ability to maintain and patch your own server instance.
Choose Flexa if you operate a business in jurisdictions like the United States, Canada, or El Salvador, need to accept 99 or more cryptocurrencies with point-of-sale hardware integration, and want automated payouts settled in fiat currencies or stablecoins without managing self-hosted software nodes.
| Feature | ||
|---|---|---|
| Ratings | ||
| Our score | 4.1/5 | 4.1/5 |
| User rating | No reviews yet | No reviews yet |
| Fees | 5.0 | 4.5 |
| Integrations | 4.5 | 4.0 |
| Settlement options | 4.0 | 4.5 |
| Reliability | 4.0 | 4.5 |
| Support | 3.0 | 3.0 |
| Specs | ||
| Processing fee | 0% | Not disclosed |
| Settlement | Crypto | Crypto, Stablecoins, Fiat, Auto-conversion |
| Coins supported | Not disclosed | 99 |
| Integrations | WooCommerce, Shopify, Magento, PrestaShop, OpenCart, Odoo, Wix, Pretix, BigCommerce, Zapier, Drupal, Ghost, Invoice Ninja | Base Pay, iOS SDK, Android SDK, React Native SDK |
| Invoicing | Yes | Not disclosed |
| Recurring payments | Yes | Not disclosed |
| Mass payouts | Yes | Yes |
| Point of sale | Yes | Yes |
| Self-hosted option | Yes | No |
| Business verification (KYB) | No | Yes |
| Settle in stablecoins | No | Yes |
| Merchant countries | Not disclosed | United States, Canada, El Salvador |
| API & SDKs | Yes | Yes |
| Company | ||
| Founded | 2017 | 2018 |
| Headquarters | — | United States |
| Investors | Tether, Kraken, OKCoin, Square Crypto | Pantera Capital, 1kx, Access Ventures, Nima Capital |
| Strengths and weaknesses | ||
| Pros |
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| Cons |
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| Best for | Self-custodial e-commerce merchants, Technical operators running Bitcoin nodes, Stores wanting zero processing fees | Multichannel crypto acceptance, Self-custody wallet integrations, SEPA-region merchants |
Highlighted cells show the stronger value in each row. Data comes from each provider's site and public sources; check details before you sign up.
FAQ
What is the fee difference between BTCPay Server and Flexa?
BTCPay Server charges 0% processing fees, leaving users to cover only native network fees and their own hosting costs. Flexa lists 0% conversion and custody fees on payouts, while running transactions through its AMP collateral system.
Do BTCPay Server and Flexa require identity verification?
BTCPay Server requires no business verification or KYB documentation because it is open-source, non-custodial software. Flexa requires merchant KYB onboarding and holds US regulatory licenses, including NMLS ID 1840599.
Can both gateways settle payments in fiat currency?
No, BTCPay Server routes payments only to merchant Bitcoin or Lightning wallets and provides no native fiat conversion. Flexa supports flexible settlement that includes fiat payouts, stablecoins, and digital asset auto-conversion.
Which networks and coins do BTCPay Server and Flexa support?
BTCPay Server is dedicated strictly to on-chain Bitcoin and Lightning Network transactions. Flexa supports 99 or more digital assets using collateralization contracts deployed on Ethereum.