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On/off ramp partners connect Stable to global fiat systems, enabling users and businesses to move between USDT, local currencies, and payment rails.

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On/off ramp overview table

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Category guide

  • On/Off Ramps: Platforms enabling direct conversion between fiat currencies and USDT on Stable.
  • Payment Gateways: Services connecting apps, merchants, or fintechs to global fiat rails for seamless transactions.
  • FX & Off-Ramp Networks: Regulated infrastructure providing compliant, stablecoin-to-fiat settlement at scale.

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On/off ramps & payment gateways

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MoonPay

Universal crypto on/off ramp used globally for instant asset purchases. Capabilities
  • Card + bank + local payment rails
  • Fast global onboarding
  • Multi-chain support
Get started: Follow the MoonPay on-ramp integration guide to embed fiat-to-USDT purchasing on Stable into your app.

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Transak

On/off ramp providing frictionless ways to buy, sell, and transfer crypto across 450+ apps. Capabilities
  • Global fiat methods
  • Easy integration APIs
  • Country-level compliance support
Get started: Review the Transak integration docs to add on/off ramp widgets or APIs with Stable as a supported network.

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Onmeta

On/off ramp and cross-border payout infrastructure with built-in compliance for VDA platforms. Capabilities
  • Fiat ↔ USDT conversion
  • Compliance-ready flows
  • Cross-border payouts
  • Local settlement rails
Get started: Refer to the Onmeta API documentation to integrate fiat-to-USDT conversion and cross-border payouts on Stable.

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Halliday

End-to-end payment suite enabling seamless on/off ramping from top CEXs and payment platforms like Coinbase and Stripe. Capabilities
  • Direct connection to major CEXs
  • Stripe + payment rail integration
  • Merchant and app-friendly flows
Get started: Read the Halliday integration docs to connect CEX and Stripe-based payment flows to Stable in your product.

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Alchemy Pay

Global payment gateway bridging traditional finance and crypto with 300+ payment methods. Capabilities
  • Global fiat on/off ramps
  • Merchant payments
  • Bank transfers + cards + local rails
Get started: Use the Alchemy Pay on-ramp API to add 300+ payment methods for USDT purchases on Stable.

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DFX

Swiss-regulated decentralized FX and off-ramp network with over 100M transactions. Capabilities
  • Stablecoin-to-fiat conversion
  • Regulated FX layer
  • Deep multi-currency support
Get started: Consult the DFX API documentation to set up compliant stablecoin-to-fiat off-ramp flows using Stable as the source network.

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Onramp Money

Low-cost fiat-to-crypto gateway specializing in emerging markets. Capabilities
  • Local payment method coverage
  • Instant settlement
  • 1.3M+ supported users
Get started: Follow the Onramp Money developer guide to integrate fiat-to-crypto flows for emerging market users on Stable.

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Banxa

Regulated on/off ramp infrastructure connecting users to crypto via local rails in 100+ countries. Capabilities
  • Regulated fiat gateways
  • Broad global coverage
  • Bank and local payment options
Get started: Read the Banxa integration overview to enable regulated on/off ramp flows with Stable as a supported network.

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Simplex by Nuvei

Fiat-to-crypto on-ramp from Nuvei, supporting card, bank, and local payment methods across 245+ markets. Buying USDT on Stable through Simplex is also available inside any wallet or app that integrates the Simplex widget, including Atomic Wallet. Capabilities
  • USDT on Stable purchases via Visa, Mastercard, Apple Pay, Google Pay, SEPA, and ACH
  • Global coverage across 245+ markets
  • White-label widget used by downstream wallets and apps (e.g., Atomic Wallet)
Get started: Go to https://buy.simplex.com to buy USDT on Stable directly, or integrate the Simplex widget to offer on-ramp purchases inside your own app.
Have an on/off ramp integrating Stable? Reach out at bizdev@stable.xyz.
Last modified on May 16, 2026