What is Oniym?

Oniym is a multichain-native naming service built on Base. One name resolves to addresses on every supported chain — Ethereum, Solana, Bitcoin, Sui, BNB, and more.

Key ideas

One name, all chains. Register alice.web3 once and set addresses for every chain you use. No per-chain registrations.

65 TLDs, all equal. Pick the TLD that fits your identity — .id, .web3, .degen, .wagmi, and 61 more. Any TLD resolves to any chain.

ENS-compatible resolver. Oniym uses ENSIP-1 namehash and ENSIP-9 multichain address records, making it compatible with ENS tooling.

Commit-reveal registration. A two-step commit-reveal flow prevents frontrunning when registering names.

Quick example

import { Oniym } from "@oniym/sdk";
 
const oniym = new Oniym({ indexerUrl: "https://api.oniym.xyz" });
 
// Forward: name → address
const eth = await oniym.getAddress("alice.web3", "eth");
const sol = await oniym.getAddress("alice.web3", "sol");
 
// Reverse: address → name
const name = await oniym.getName("0x11702b...");
 
// All addresses at once
const all = await oniym.getAddresses("alice.web3");
// { eth: "0x...", sol: "...", btc: "..." }

Packages

Contracts

Deployed on Base Sepolia (testnet). Mainnet launch (soon).

Full deployment details including USDC and all 65 TLD registrars: Deployments →