Crypto payment pricing. 5% on withdrawals. Nothing else.

Abyxo supports 20 chains: Bitcoin (on-chain and Lightning), Ethereum, Solana, BNB Chain, Tron, Avalanche, Polygon, Arbitrum, Optimism, Base, Litecoin, Dogecoin, Cronos, Hyperliquid, Sei, Sui, TON (rename to Gram in progress), Cardano, Monero, XRP Ledger. Stablecoins: USDC, USDT, PYUSD, EURC. On your side you only ever talk to our REST API. Internally, Solana, Sui, Cronos and Tron run on our gRPC node backbone for ultra-fast on-chain dispatch.

Our engine combines on-chain scoring (address embeddings and clustering, OFAC/EU/UK/UN sanction lists) with a behavioural classifier on the payment session. Real-time risk score, automatic blocking above the threshold you set, and a human-readable explanation in the backoffice.

Usually under an hour. A single POST /v1/checkout/sessions creates a payment session — a 100% REST API documented with OpenAPI 3.1 (Swagger), no library to install. HMAC-signed webhooks, hosted checkout pages, or a custom integration via Elements — your call.

One Pay-as-you-go plan at 5%, charged only when you withdraw your funds, with no minimum and no commitment (vs 2.9% + €0.30 on average with fiat processors). Enterprise plan on request. No hidden fees, no chargebacks.

Yes. Abyxo operates as a registered CASP (MiCA-ready). We apply Travel Rule obligations, KYC through a certified partner, and an in-house AML module that screens sanctioned addresses in real time. SOC 2 Type II audit in progress (due Q4 2026).

Your choice: keep the crypto you receive (non-custodial custody via WebAuthn passkeys), or settle automatically to EUR by SEPA transfer the next business day. On high-throughput chains (Solana, Sui, Cronos, Tron) our gRPC node backbone routes the payment intent on-chain extremely fast.

Yes. Any balance can be swapped into another supported asset — typically into a stablecoin such as USDC or EURC — from the dashboard or over the API, before you withdraw. That lets you take payment in BTC, ETH or any other supported chain while holding value in the asset you actually want, without going through an external exchange.

No. Every crypto transaction is final once confirmed on-chain — that is one of the main wins over card payments. Our fraud engine and HMAC signatures guarantee on the merchant side that no reported payment has been forged.

The strict minimum: email, organisation ID, KYC hash. No private key is ever stored on the Abyxo side — sensitive sessions are protected by WebAuthn (passkeys) with step-up authentication. Sovereign EU hosting (France), no export outside GDPR.