Unstoppable Domains Integration

Integration with Unstoppable Domains

Unstoppable Domains — alternative to ENS with one key difference: names are purchased once without annual payments. .crypto, .wallet, .nft, .x, .blockchain and other TLDs. Domains are stored as ERC-721 NFTs on Polygon and Ethereum.

Resolution via Official SDK

import Resolution from "@unstoppabledomains/resolution";

const resolution = new Resolution({
  sourceConfig: {
    uns: {
      locations: {
        Layer1: {
          url: `https://mainnet.infura.io/v3/${INFURA_KEY}`,
          network: "mainnet",
        },
        Layer2: {
          url: `https://polygon-mainnet.infura.io/v3/${INFURA_KEY}`,
          network: "polygon-mainnet",
        },
      },
    },
  },
});

// Resolve ETH address
const ethAddress = await resolution.addr("brad.crypto", "ETH");

// Other cryptocurrencies
const btcAddress = await resolution.addr("brad.crypto", "BTC");

// Email from profile
const email = await resolution.email("brad.crypto");

// All records
const allRecords = await resolution.allRecords("brad.crypto");

Key Differences from ENS

UI Integration

Pattern of use: support both standards (ENS + Unstoppable) in address input fields.

async function resolveAddress(input: string): Promise<string | null> {
  // ENS
  if (input.endsWith(".eth")) {
    return await provider.resolveName(input);
  }
  
  // Unstoppable Domains TLDs
  const udTLDs = [".crypto", ".wallet", ".nft", ".x", ".blockchain", ".dao"];
  if (udTLDs.some(tld => input.endsWith(tld))) {
    try {
      return await resolution.addr(input, "ETH");
    } catch {
      return null;
    }
  }
  
  // Raw address
  if (ethers.isAddress(input)) return input;
  
  return null;
}

Unstoppable Domains integration into existing dApp — 1-2 working days. Support for all record types and profiles — up to 3 days.