Build With Our Domain APIs
Full registrar and marketplace access through REST APIs, MCP, and webhooks.
Why Build with Unstoppable?
Level up your dapp or application by integrating with the foundational layer for digital identity on Web3. Improve your offering with:
User API
Search, register, and manage domains programmatically with RESTful endpoints.
AI Assistant
Connect AI agents to domain operations via the Model Context Protocol.
Reseller API
Build white-label domain products with full lifecycle management.
Affiliate API
Earn commissions by referring domain sales. No checkout required.
Webhooks
Real-time event notifications for domain, marketplace, and payment activity.
Resolution Libraries
Resolve domain records in Java, JavaScript, Swift, and Go.
Developer Essentials
Read our API documentation
Reference our docs to help you integrate with Unstoppable Domains APIs.
Test out our Web3 domains
Discover first-hand what makes our Web3 domains truly unstoppable.
Resolution Libraries
Resolution - Java
Resolution - JS
Resolution - Swift
Resolution - Go
1 import com.unstoppabledomains.resolution.Resolution 2 ... 3 DomainResolution resolution = new Resolution(); 4 String receiverUSDTAddress = resolution.getMultiChainAddress 5 ("udtestdev-usdt.crypto", "USDT", "ERC20"); 6 // receiverUSDTAddress consists address for receiving USDT on Ethereum 7 (ERC20 version) 8 // use this address as recipient of the payment