Cryptadium

Cryptadium is a B2B crypto payment gateway operated by DUALPAY, S.A. de C.V., incorporated in San Salvador, El Salvador and registered as a Bitcoin Service Provider (BTCSP) under the El Salvador regulator.

Cryptadium began as an internal idea in 2018, with platform development through 2019–2020, the first transaction in 2021, and a full market launch and licensing in 2022. It is a B2B-only service — all services are provided to legal entities, with AML/KYB compliance in line with LEPLAF and GAFILAT standards.

The gateway charges a per-transaction fee of up to 0.9% that varies with turnover, with 0% setup, usage, and withdrawal fees. A standout feature is stable-value calculation (hedging), which protects crypto assets from volatility by settling in stablecoins. The on-ramp lets customers pay by card while the merchant receives crypto, bridging fiat and digital assets.

Cryptadium supports 10 blockchain networks and 6 stablecoins, covering major assets including BTC, ETH, USDT, USDC, TRX, BNB, SOL, TON, LTC, DOGE, MATIC, AVAX, and BASE. Integration is free and can be completed in one day, with ready-made CMS plugins for WooCommerce, OpenCart, PrestaShop, Tilda, GetCourse, and Insales, plus a payment widget, API, and direct payment links for social media, messengers, and email.

Additional features include auto-withdrawal of crypto to connected wallets, subscription and recurring payments with custom periods, underpayment handling, and real-time payment notifications. Security is high-level with AES/TLS encryption, MFA, and a 99.5% SLA.

Cryptadium serves diverse B2B segments including international e-commerce, SaaS and subscription services, B2B fintech (PSPs, aggregators), digital agencies, EdTech platforms, logistics companies, money transfer operators (MTOs), and IT services/software development.

Best for: registered businesses and legal entities that want a regulated, B2B-only crypto payment gateway with volatility hedging, on-ramp, CMS plugins, and low turnover-based fees.

Transaction fee

• Up to 0.9% per transaction, varying with your turnover.
• Special rates available for high-volume projects.

Common conditions

• Setup fee — $0 (free integration in one day).
• Monthly fee — $0.
• Usage fee — $0.
• Withdrawal fee — $0.
• On-ramp — customer pays by card, you receive crypto.

Accept payments

• API — automated crypto processing for payment streams.
• Payment widget — button with an embedded payment form for your website.
• CMS plugins — WooCommerce, OpenCart, PrestaShop, Tilda, GetCourse, Insales.
• Payment links — direct payment link for social media, messengers, and email without a website.
• On-ramp — card payment with fiat in, crypto out.
• Subscription payments — recurring payments with custom periods.

Manage funds

• Stable-value calculation (hedging) — protects crypto assets from volatility.
• Auto-withdrawal — funds auto-withdrawn to connected wallets.
• Underpayment handling — handles partial payments gracefully.
• Real-time notifications — instant payment alerts and analytics.

Security & compliance

• El Salvador BTCSP licence (DUALPAY, S.A. de C.V.).
• AML/KYB in compliance with LEPLAF and GAFILAT.
• AES/TLS encryption, MFA, and 99.5% SLA.
• B2B-only — services provided to legal entities.

Solutions by industry

• International E-commerce, SaaS & Subscription, B2B Fintech (PSPs/aggregators), Digital Agencies, EdTech, Logistics, Money Transfer Operators (MTOs), and IT Services/Software Development.