BlockBee is a non-custodial cryptocurrency payment gateway that routes funds directly to the merchant's own wallet, eliminating the frozen-balance and withdrawal-limit risks that come with custodial platforms. The architecture is genuinely important for high-risk businesses: if BlockBee were to terminate a merchant account, the funds already received remain in the merchant's wallet rather than being held pending review. The gateway supports over 70 cryptocurrencies including Bitcoin, Ethereum, major stablecoins, and a broad range of altcoins, with transaction fees starting at 0.25% and a seven-day zero-fee trial for new accounts.

Integration is developer-first: a flexible API supports reusable deposit addresses, instant payment notifications, and customisable checkout flows. Ready-made plugins cover WooCommerce, Magento, OpenCart, PrestaShop, Odoo, and Bubble, making setup accessible to platforms that don't have dedicated payment engineering. Mass payout functionality handles disbursements back out through the same self-custodial model.

BlockBee is a well-structured option for adult platforms that want to add crypto as a complementary payment rail. The non-custodial design and sub-0.5% fee structure make it one of the more operator-aligned gateways in the space.