Ramps
On/off ramp partners connect Stable to global fiat systems, enabling users and businesses to move between USDT, local currencies, and payment rails.
On/off ramp overview table
| Provider | Category | Docs / Get Started | Notes |
|---|---|---|---|
| Onmeta | On/Off Ramp | https://docs.onmeta.in/ | Compliant fiat-to-USDT + cross-border payouts |
| Halliday | On/Off Ramp | https://docs.halliday.xyz/pages/home | CEX + Stripe integration |
| Alchemy Pay | Gateway | https://alchemypay.readme.io/docs/alchemypay-on-ramp | 300+ payment methods |
| DFX | Off-Ramp FX | https://docs.dfx.swiss/ | Regulated stablecoin-to-fiat |
| Onramp Money | On/Off Ramp | https://docs.onramp.money/onramp/ | Emerging market coverage |
| MoonPay | Universal Ramp | https://dev.moonpay.com/docs/on-ramp-overview | Global card + bank support |
| Transak | On/Off Ramp | https://docs.transak.com/ | 450+ integrations |
| Banxa | Regulated Ramp | https://docs.banxa.com/docs/overview | Local rails in 100+ countries |
| Simplex by Nuvei | On-Ramp | https://buy.simplex.com | Card, Apple/Google Pay, SEPA, ACH across 245+ markets; powers downstream wallets including Atomic Wallet |
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.
On/off ramps & payment gateways
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.
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.
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.
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.
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.
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.
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.
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.
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.