Crypto On-Ramp, Off-Ramp & OTC Conversion

Guardarian provides a comprehensive suite of B2B fiat-to-crypto and crypto-to-fiat conversion products for businesses operating across the Web3 ecosystem.

On-Ramp & Off-Ramp API/Widget

Guardarian's flagship B2B integration product is a customisable widget and REST API that enables partner platforms — wallets, exchanges, DeFi protocols, and Web3 games — to offer fiat-to-crypto and crypto-to-fiat conversion to their users. Partners can buy, sell, and swap over 1,000 cryptocurrencies across 30+ fiat currencies using 20+ payment methods, including Visa, Mastercard, Apple Pay, Google Pay, SEPA, PIX, SPEI, and open banking. Coverage spans 170+ countries. Partners earn affiliate revenue share on transactions executed through their integration.

B2B Crypto Exchange

A dedicated B2B portal for companies exchanging cryptocurrency at scale — converting crypto treasury holdings to fiat or deploying fiat into crypto assets. Features include competitive transparent fees, a non-custodial exchange process, instant invoice creation, fast onboarding via a partner dashboard, and personal account management. Suitable for Web3 companies, crypto funds, and protocol teams with recurring fiat/crypto conversion needs.

G-OTC (High-Limit OTC Desk)

For institutional clients, high-net-worth individuals, and businesses requiring large-volume transactions beyond standard exchange limits, G-OTC provides preferential rates, rapid execution, and dedicated VIP account management. Clients submit requests to a personal manager and receive tailored offers with optimal limits and conditions.

G-OnePay (Permanent Crypto-to-Fiat Settlement)

G-OnePay provides a single permanent cryptocurrency deposit address that automatically converts received crypto to fiat and settles directly to a linked bank account — eliminating volatility exposure. Suitable for freelancers, DAOs, Web3 startups, and any business accepting crypto but preferring fiat settlement.

All products are EU-licensed, AML/KYC compliant, and supported by 24/7 dedicated account management. Trusted by 400+ business clients including Ledger, Jupiter, Bitget Wallet, and CoinEx.