Articles on: Buy & Sell Crypto

How to Buy Crypto with Fiat in Mixin?

Mixin lets you purchase crypto directly in the app via integrated fiat providers.


Depending on your account and device, different providers and payment options will be available.


1. Before You Start


When using the Buy feature for the first time:


  • New users (registered via mnemonic) will be required to bind a phone number
  • Users who registered with or have already linked a phone number will not see this step


Binding a phone number is required to access fiat purchase services.



2. How Provider Selection Works


Mixin automatically selects available fiat providers based on your:


  • Bound phone number (region)
  • Device (iOS / Android)


Currently, two main types of providers are supported:


(1) Coinbase (Apple Pay)


Available when:


  • You are using an iOS device
  • Your account is linked to a US phone number


Features:


  • Supports Apple Pay only
  • Payment must be made using an Apple Pay–linked debit card
  • Crypto is delivered directly to your Mixin wallet after purchase


For detailed instructions, please refer to this article.


(2) Aggregated Providers (via Onramper)


For users who do not meet Coinbase conditions, Mixin provides an aggregated fiat solution.


Key points:


  • This service is powered by an integrated aggregator
  • Multiple third-party providers are available behind the scenes
  • The system automatically selects a provider based on:


1. Selected asset

2. Payment method

3. Estimated fees


Users can:


  • Switch between available providers
  • Choose different payment methods (card, Apple Pay, etc.)



3. Payment & Settlement


Please note:


  • All fiat payments are processed by third-party providers
  • Funds do not pass through Mixin
  • After a successful purchase:


Crypto will be credited directly to your Mixin wallet

Arrival time depends on network confirmation


If you encounter payment issues, please contact the selected provider directly.



4. Fees & Promotion


Fiat purchases may include fees charged by providers.


Currently, Mixin offers a fee subsidy campaign:


  • Users will receive a rebate equal to the actual fee paid
  • The subsidy is calculated based on the transaction


Please refer to the campaign announcement for details.



5. FAQ


  1. Why do I need to bind a phone number?


Fiat providers require a phone number to determine service availability and comply with regional requirements.


  1. Why do I see different providers than other users?


Available providers depend on:


  • Your phone number (region)
  • Your device (iOS / Android)


  1. Why don’t I see Coinbase?


Coinbase is only available for:


  • iOS users
  • Accounts linked to a US phone number


  1. What should I do if my payment fails?


Payments are handled by third-party providers. Possible reasons include:


  • Insufficient balance
  • Bank or card restrictions
  • Billing information mismatch


Please contact the provider directly for support.



  1. Where does my money go after payment?


Payments are processed by the selected provider.

Mixin does not hold or process fiat funds.

After the purchase is completed, crypto is sent to your Mixin wallet.


  1. How long does it take to receive my crypto?


In most cases, assets are credited shortly after network confirmation.

Delays may occur during periods of network congestion.


Updated on: 28/04/2026