@hoodag/sdk

Resolve .hood names on Robinhood Chain (chain id 4663). ENS-standard, so it behaves like ENS resolution — but every read goes through a single contract, the UniversalResolver, which makes integration a one-liner.

Zero dependencies (uses global fetch, works in the browser and Node 18+). Optional viem helpers are exported if your app already uses viem.

Install

npm install @hoodag/sdk

Usage

import { resolveHood, reverseHood, resolveTextHood } from '@hoodag/sdk';

// Forward: name -> address
const addr = await resolveHood('robin.hood');
// '0x45aa14…'  (or null if unset)

// Reverse: address -> primary name (verified = forward record points back)
const { name, verified } = await reverseHood(addr);
// { name: 'robin.hood', verified: true }

// Text records
const twitter = await resolveTextHood('robin.hood', 'com.twitter');

Every function accepts an optional rpcUrl as the last argument if you run your own node:

await resolveHood('robin.hood', 'https://my-node.example/rpc');

viem helpers

import { createPublicClient, http } from 'viem';
import { HOOD, UNIVERSAL_RESOLVER_ABI } from '@hoodag/sdk';

const client = createPublicClient({ transport: http(HOOD.rpcUrl) });
const addr = await client.readContract({
  address: HOOD.contracts.universalResolver,
  abi: UNIVERSAL_RESOLVER_ABI,
  functionName: 'resolve',
  args: ['robin.hood'],
});

Contracts (Robinhood Chain, id 4663)

| Contract | Address | | --- | --- | | Registry (immutable) | 0x3E717dc89AAF4605b607324329EEeB0a8B3C8A1c | | UniversalResolver | 0xa9ed3C73F522875F18DAa631429125da893D8E53 | | Registrar (.hood NFT) | 0x9a122C54e15B6287c164b90833bcDA6E16520D50 | | Public Resolver | 0x072C7a66a6D52B23274470b86096AFCBF816CA0B | | Registrar Controller | 0x7900b2B8Cc3f0616B18C68AdA7E115A9022Ca04a | | Reverse Registrar | 0x4be6D0379f56404B563afAe17c6b095b1dfcf479 |

License

MIT