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Open Banking Payin (EUR / GBP → USDC)

This section provides a reference for integrating Tylt CrossRamp’s Open Banking on-ramp flow within merchant applications.

Through this integration, end users can initiate account-to-account transfers via Open Banking, which are used to facilitate the acquisition of stablecoins. The resulting USDC is transferred to the merchant’s Tylt wallet.

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Conversion & Settlement Model

  1. Each transaction is processed using a real-time conversion quote.

  2. At the time of initiation, a EUR / GBP → USDC quote is generated. The end user reviews and accepts the quote, following which the transaction is initiated to acquire the corresponding crypto-assets and transfer them to the merchant, based on the provided transaction details.

  3. The end user is then prompted to complete a fiat payment via Open Banking through

  4. Upon successful completion of the fiat leg, the corresponding crypto-asset conversion is executed, and the resulting USDC is credited to the merchant’s Tylt wallet.

  5. Settlement is finalised through a daily reconciliation cycle, ensuring that all transactions are fully reflected in the merchant’s balance no later than 2:30 AM UTC.

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Settlement Summary

Attribute
Description

Quote Model

Real-time quote per transaction

Credit Timing

USDC credited upon successful completion of the transaction

Settlement Finality

Fully reconciled no later than 2:30 AM UTC daily

Settlement Currency

USDC

Destination

Merchant Tylt Wallet

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What You’ll Find in the API Reference

1. Open Banking On-Ramp Flow Guidance for enabling end users to initiate EUR / GBP bank transfers and complete on-ramp transactions, including tracking transaction lifecycle and status.

2. Endpoint Descriptions Detailed specifications for all API endpoints, including parameters, authentication requirements, and sample requests.

3. Request & Response Formats Structured JSON examples, parameter definitions, and HTTP status codes for accurate implementation.

4. Code Examples Reference implementations in Node.js, Python, and other supported languages.

5. Error Handling Common error scenarios, causes, and recommended handling strategies to ensure reliable integration.

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Summary

This API enables merchants to embed Open Banking-based on-ramp functionality, allowing end users to acquire stablecoins via local bank transfers, with settlement managed in USDC through Tylt’s crypto-asset infrastructure.

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