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Use the QASH API to retrieve supported assets, request real-time exchange quotes, and manage partner card operations. Use the public exchange endpoints for pricing widgets and checkout estimates. Use the authenticated Cards endpoints for card status, controls, balances, and transaction history.
The first endpoints documented here are public and do not require authentication.

Getting started

Review environments, request conventions, and how to run live requests from the docs.

Exchange rates / TRM

Explore supported assets and create public quotes with live TRM-based pricing.

Cards

Manage card status, spending limits, balance, and transaction history with partner authentication.

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What you can do today

  • List the fiat and digital assets available for exchange quotes
  • Request a public quote between supported asset pairs
  • Retrieve a card’s current status and masked details
  • Lock, unlock, and update card spending limits
  • Check balances and review transaction history
  • Inspect live responses from the interactive API playground

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Current scope

This release covers the Exchange Rates / TRM API and the Cards API. Additional authenticated endpoints can be added to the same reference as they are finalized.
If you want to test requests directly from the docs, open any endpoint page, choose an environment, and click Run.