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Stablecoin Account API Publisher Disclaimer The Stablecoin Account API lets you hold crypto and fiat balances side by side and move funds between them. You can receive cryptocurrency deposits on dedicated addresses, send withdrawals to whitelisted wallets, convert between crypto and fiat with real-time quotes, and transfer fiat to and from your UQPAY Global Account — completing the full on-ramp and off-ramp loop.

Key capabilities

  • Multi-currency asset wallets — Hold and query crypto and fiat balances in one account, with available, margin, and frozen balances tracked per currency.
  • Cryptocurrency deposits (on-ramp) — Generate deposit addresses per asset and network, track incoming deposits, and get notified by webhook as they confirm.
  • Cryptocurrency withdrawals (off-ramp) — Send funds to address book entries with automatic risk screening, dynamic network fee estimates, and webhook status updates.
  • Currency conversion — Lock an exchange rate with a quote, then execute crypto–fiat or crypto–crypto conversions at the quoted price.
  • Fiat transfers — Move fiat between your Stablecoin Account and Global Account in either direction.
  • Travel Rule compliance — Record beneficiary and originator information for third-party and exchange-hosted addresses, backed by VASP, country, and region reference data.

Get started

Quickstart

Receive your first crypto deposit in a few API calls.

Core concepts

Understand assets, networks, order types, and statuses.

Build your integration

Receive deposits

Generate deposit addresses and track incoming crypto.

Send withdrawals

Estimate network fees and withdraw to whitelisted addresses.

Convert currencies

Quote and execute crypto–fiat conversions.

Transfer funds

Move fiat between your Stablecoin Account and Global Account.

Manage and comply

Manage asset balances

Query wallet balances and transaction history.

Address book

Register and manage withdrawal destination addresses.

Travel Rule compliance

Provide beneficiary information for third-party and hosted wallets.

Testing in sandbox

Test deposits, withdrawals, and webhooks end to end.