Nexbridge Partner API
The Nexbridge Partner API enables approved partners to programmatically create and monitor subscription and redemption requests between USDT and USTBL on Liquid. This documentation describes the external partner-facing behavior of the API, including supported assets, address management, quotes, requests, funding visibility, and operational rules.This documentation does not expose Nexbridge internal treasury, custody, routing, or matching infrastructure.
Supported Flows
Subscription
Convert USDT into USTBL.USDT → USTBL
Redemption
Convert USTBL into USDT.USTBL → USDT
What Partners Can Do
- Register and manage payout addresses used for settlement
- Obtain executable quotes for supported flows
- Submit subscription and redemption requests
- Monitor balances, funding activity, and request statuses
Core Concepts
Address
Approved payout address for a specific asset and network.Quote
Executable commercial terms with expiration.Request
Subscription or redemption instruction.Funding Activity
Funding tracked through its lifecycle.Balance
Partner balance by asset.Integration Lifecycle
- Register payout address
- Wait for address approval
- Request quote
- Create request
- Fund request
- Track request status
- Receive settlement
V1 Scope
| Area | Supported |
|---|---|
| Assets | USDT, USTBL |
| Network | Liquid |
| Request Types | Subscription, Redemption |
| Quote Model | Executable quote with expiration |
| Funding | Partial funding supported |
| Address Model | Approved addresses required |
| Status Tracking | Request and funding lifecycle visibility |
Out of Scope for V1
- Partner self-service onboarding
- Manual balance adjustments
- Treasury operations
- Manual fund movements
- Webhook notifications
- Partner-managed API key creation