HOT Kit - HEX docs

@hot-labs/kit connects wallets on many chains behind one API, shows the balances of everything the user connected, and moves value between chains: deposits into and withdrawals from the HOT (NEAR Intents) balance account, swaps and bridges, payments signed as intents. It ships a ready-made React UI (connect, profile, bridge, deposit) and a headless core that also runs on Node.js. Chains: EVM, NEAR, Solana, TON, Stellar, TRON, Cosmos, Sui, Aptos, Starknet, XRP Ledger and UTXO chains (BTC, LTC, DOGE, BCH, DASH, ZEC), plus Google login with embedded wallets (Privy).

npm install @hot-labs/kit react react-dom

import { HotKit } from "@hot-labs/kit";
import { defaultConnectors } from "@hot-labs/kit/defaults";

const kit = new HotKit({
  connectors: defaultConnectors, // each chain's SDK loads on demand
  walletConnect: { projectId: "<your Reown project id>" }, // optional, https://dashboard.reown.com
});

await kit.connect(); // wallet picker
kit.onConnect(({ wallet }) => console.log(wallet.type, wallet.address));
kit.openBridge(); // swap / bridge UI

On a server, import the headless parts only:

import { Intents, OmniToken } from "@hot-labs/kit/core";
import { NearWallet } from "@hot-labs/kit/near";

const wallet = NearWallet.fromPrivateKey(privateKey, "my-account.near");
await Intents.builder(wallet).transfer({ recipient: "bob.near", token: OmniToken.USDT, amount: 1 }).execute();

Guides

Getting started

Install, bundler setup, first HotKit, SSR, server use

Configuration

Every option, custom RPCs, storage, endpoints

Connectors

Default and lazy connectors, per-chain entry points, Privy, WalletConnect

Wallets and balances

kit.wallets, balances, transfers, auth, events

Intents

The Intents builder: transfers, swaps, payments, withdrawals

UI

Popups, sheet or modal, theme, branding, profile tabs

Errors and waits

Error classes and what “unknown outcome” means

Backends

The kit needs no API key and sends no telemetry. Besides the chains’ own nodes it talks to one backend, hex-api (hex-api.app): EVM and Solana RPC, prices and token lists, the 1Click swap proxy and the NEAR Intents relay. Every chain’s RPC can be replaced with your own (new HotKit({ rpc: { 8453: "https://..." } })). Wallet sessions are kept in localStorage unless you pass another storage. Details in Endpoints.

Entry points

Import	Contents	Runs on
`@hot-labs/kit`	`HotKit`, the core, UI helpers (theme, presentation), storage	browser
`@hot-labs/kit/defaults`	`defaultConnectors`, `lazyConnector`	browser
`@hot-labs/kit/core`	Headless core: `Intents`, `OmniToken`, `Network`, `api`, bridge, exchange	browser, Node
`@hot-labs/kit/ui`	UI components and the popup router	browser
`@hot-labs/kit/near`	`NearConnector`, `NearWallet` (incl. `NearWallet.fromPrivateKey`)	browser, Node
`@hot-labs/kit/evm`	EVM connector (injected wallets, WalletConnect)	browser
`@hot-labs/kit/solana`	Solana connector (Wallet Standard)	browser
`@hot-labs/kit/ton`	TON connector (TonConnect)	browser
`@hot-labs/kit/stellar`	Stellar connector (Freighter and others)	browser
`@hot-labs/kit/tron`	TRON connector	browser
`@hot-labs/kit/cosmos`	Cosmos connector (Keplr)	browser
`@hot-labs/kit/sui`	Sui connector (Wallet Standard)	browser
`@hot-labs/kit/aptos`	Aptos connector (AIP-62 wallets)	browser
`@hot-labs/kit/starknet`	Starknet connector (Ready, Braavos)	browser
`@hot-labs/kit/xrp`	XRP Ledger connector (GemWallet)	browser
`@hot-labs/kit/utxo`	BTC, LTC, DOGE, BCH, DASH, ZEC	browser
`@hot-labs/kit/privy`	Google login with embedded wallets (Privy)	browser
`@hot-labs/kit/hyperliquid`, `@hot-labs/kit/hocraft`, `@hot-labs/kit/nft`	Product modules used by HOT apps. Their API may change in minor versions.	browser

Every entry point loads in Node.js (ESM). “browser” means the module needs window once you call it, not to import it.