jb-interact-ui
Generate minimal frontends for interacting with existing Juicebox V5 projects. Pay, cash out, claim tokens, view project state - all in standalone HTML files.
Install
mkdir -p .claude/skills/jb-interact-ui && curl -L -o skill.zip "https://mcp.directory/api/skills/download/6451" && unzip -o skill.zip -d .claude/skills/jb-interact-ui && rm skill.zipInstalls to .claude/skills/jb-interact-ui
About this skill
Juicebox V5 Interaction UI Generator
Generate simple frontends for interacting with existing Juicebox projects using viem and shared styles. Pay into treasuries, cash out tokens, view project state - no build tools required.
Philosophy
Let users interact with Juicebox projects without touching a command line.
These UIs are for:
- Paying into a project treasury
- Cashing out tokens for ETH
- Viewing project configuration and state
- Claiming ERC-20 tokens from credits
Template: Project Payment UI
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Pay Project</title>
<link rel="stylesheet" href="/shared/styles.css">
<style>
body { max-width: 480px; margin: 0 auto; }
.input-suffix { position: relative; }
.input-suffix input { padding-right: 3rem; }
.input-suffix span { position: absolute; right: 0.75rem; top: 50%; transform: translateY(-75%); color: var(--text-muted); }
.receive-preview { background: var(--bg-primary); border-radius: 4px; padding: 0.75rem; margin: 0.75rem 0; text-align: center; }
.receive-amount { font-size: 1.25rem; font-weight: 600; }
.receive-label { font-size: 0.75rem; color: var(--text-muted); }
.subtitle { color: var(--text-muted); margin-bottom: 1.5rem; }
</style>
</head>
<body>
<h1>Pay Project #<span id="project-id">1</span></h1>
<p class="subtitle">Contribute ETH and receive tokens</p>
<div class="card">
<button id="connect-btn" class="btn" onclick="connectWallet()">Connect Wallet</button>
<div id="wallet-status" class="hidden">
<div class="stat-row"><span class="stat-label">Connected</span><span class="stat-value" id="wallet-address"></span></div>
<div class="stat-row"><span class="stat-label">Balance</span><span class="stat-value" id="wallet-balance"></span></div>
</div>
</div>
<div class="card" id="project-stats">
<div class="stat-row"><span class="stat-label">Treasury Balance</span><span class="stat-value" id="treasury-balance">-</span></div>
<div class="stat-row"><span class="stat-label">Token Supply</span><span class="stat-value" id="token-supply">-</span></div>
<div class="stat-row"><span class="stat-label">Tokens per ETH</span><span class="stat-value" id="tokens-per-eth">-</span></div>
</div>
<div class="card">
<label>Amount to Pay</label>
<div class="input-suffix">
<input type="number" id="pay-amount" placeholder="0.0" step="0.001" min="0" oninput="updateReceivePreview()">
<span>ETH</span>
</div>
<div class="receive-preview">
<div class="receive-amount" id="receive-amount">0</div>
<div class="receive-label">tokens you'll receive</div>
</div>
<label>Memo (optional)</label>
<input type="text" id="memo" placeholder="Thanks for building!">
<button id="pay-btn" class="btn" onclick="pay()" disabled>Pay Project</button>
</div>
<div id="tx-status" class="card hidden">
<span id="tx-state"></span>
<a id="tx-link" href="#" target="_blank" class="hidden">View transaction</a>
</div>
<script type="module">
import { createPublicClient, createWalletClient, http, custom, formatEther, parseEther, getContract } from 'https://esm.sh/viem';
import { mainnet, optimism, base, arbitrum, sepolia } from 'https://esm.sh/viem/chains';
import { CHAIN_CONFIGS, truncateAddress, getTxUrl } from '/shared/wallet-utils.js';
// Configuration
const PROJECT_ID = 1n;
const CHAIN_ID = 1;
const CHAINS = { 1: mainnet, 10: optimism, 8453: base, 42161: arbitrum, 11155111: sepolia };
const NATIVE_TOKEN = '0x000000000000000000000000000000000000EEEe';
const TERMINAL_ABI = [
{ name: 'pay', type: 'function', stateMutability: 'payable',
inputs: [
{ name: 'projectId', type: 'uint256' }, { name: 'token', type: 'address' },
{ name: 'amount', type: 'uint256' }, { name: 'beneficiary', type: 'address' },
{ name: 'minReturnedTokens', type: 'uint256' }, { name: 'memo', type: 'string' },
{ name: 'metadata', type: 'bytes' }
],
outputs: [{ type: 'uint256' }]
}
];
let publicClient, walletClient, address, tokensPerEth = 0n;
document.getElementById('project-id').textContent = PROJECT_ID.toString();
window.connectWallet = async function() {
if (!window.ethereum) { alert('Please install MetaMask'); return; }
const chain = CHAINS[CHAIN_ID];
const rpc = CHAIN_CONFIGS[CHAIN_ID]?.rpc || chain.rpcUrls.default.http[0];
publicClient = createPublicClient({ chain, transport: http(rpc) });
walletClient = createWalletClient({ chain, transport: custom(window.ethereum) });
const [addr] = await walletClient.requestAddresses();
address = addr;
const chainId = await walletClient.getChainId();
if (chainId !== CHAIN_ID) {
try { await walletClient.switchChain({ id: CHAIN_ID }); }
catch { alert(`Please switch to the correct network (Chain ID: ${CHAIN_ID})`); return; }
}
document.getElementById('wallet-address').textContent = truncateAddress(address);
const balance = await publicClient.getBalance({ address });
document.getElementById('wallet-balance').textContent = `${parseFloat(formatEther(balance)).toFixed(4)} ETH`;
document.getElementById('wallet-status').classList.remove('hidden');
document.getElementById('connect-btn').classList.add('hidden');
document.getElementById('pay-btn').disabled = false;
await loadProjectStats();
};
async function loadProjectStats() {
tokensPerEth = parseEther('1000000');
document.getElementById('treasury-balance').textContent = '10.5 ETH';
document.getElementById('token-supply').textContent = '10,500,000';
document.getElementById('tokens-per-eth').textContent = '1,000,000';
}
window.updateReceivePreview = function() {
const amount = document.getElementById('pay-amount').value || '0';
if (tokensPerEth > 0n) {
const receive = parseFloat(amount) * parseFloat(formatEther(tokensPerEth));
document.getElementById('receive-amount').textContent = receive.toLocaleString(undefined, { maximumFractionDigits: 0 });
}
};
window.pay = async function() {
const amount = document.getElementById('pay-amount').value;
const memo = document.getElementById('memo').value || '';
if (!amount || parseFloat(amount) <= 0) { alert('Enter an amount to pay'); return; }
const terminal = CHAIN_CONFIGS[CHAIN_ID]?.contracts?.JBMultiTerminal;
const value = parseEther(amount);
showTxPending('Please confirm in wallet...');
try {
const hash = await walletClient.writeContract({
address: terminal,
abi: TERMINAL_ABI,
functionName: 'pay',
args: [PROJECT_ID, NATIVE_TOKEN, value, address, 0n, memo, '0x'],
value,
account: address
});
showTxSent(hash);
await publicClient.waitForTransactionReceipt({ hash });
showTxConfirmed();
} catch (error) {
showTxError(error);
}
};
function showTxPending(msg) {
document.getElementById('tx-status').classList.remove('hidden');
document.getElementById('tx-state').textContent = msg;
document.getElementById('tx-link').classList.add('hidden');
}
function showTxSent(hash) {
document.getElementById('tx-state').textContent = 'Transaction sent...';
const link = document.getElementById('tx-link');
link.href = getTxUrl(CHAIN_ID, hash);
link.classList.remove('hidden');
}
function showTxConfirmed() { document.getElementById('tx-state').textContent = 'Payment successful!'; }
function showTxError(error) { document.getElementById('tx-state').textContent = error.shortMessage || error.message; }
</script>
</body>
</html>
Template: Cash Out UI
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Cash Out Tokens</title>
<link rel="stylesheet" href="/shared/styles.css">
<style>
body { max-width: 480px; margin: 0 auto; }
.input-suffix { position: relative; }
.input-suffix input { padding-right: 4rem; }
.input-suffix span { position: absolute; right: 0.75rem; top: 50%; transform: translateY(-75%); color: var(--text-muted); }
.receive-preview { background: var(--bg-primary); border-radius: 4px; padding: 0.75rem; margin: 0.75rem 0; text-align: center; }
.receive-amount { font-size: 1.25rem; font-weight: 600; }
.receive-label { font-size: 0.75rem; color: var(--text-muted); }
.subtitle { color: var(--text-muted); margin-bottom: 1.5rem; }
.warning { border-color: var(--error) !important; }
.warning p { font-size: 0.875rem; color: var(--text-muted); }
</style>
</head>
<body>
<h1>Cash Out</h1>
<p class="subtitle">Burn tokens to reclaim ETH from treasury</p>
<div class="card">
<button id="connect-btn" class="btn" onclick="connectWallet()">Connect Wallet</button>
<div id="wallet-status" class="hidden">
<div class="stat-row"><span class="stat-label">Your Token Balance</span><span class="stat-value" id="token-balance">-</span></div>
</div>
</div>
<div class="card">
<label>Tokens to Cash Out</label>
<div class="input-suffix">
<input type="number" id="cash-out-amount" placeholder="0" oninput="updateCashOutPreview()">
<span>tokens</span>
</div>
<button class="btn btn-secondary" onclick="setMax()" style="margin-bottom: 0.75rem;">Max</button>
<div class="receive-preview">
<div class="receive-amount" id="reclaim-amount">0</div>
<div class="receive-label">ETH you'll receive</div>
</div>
<button id="cashout-btn" class="btn" onclick="cashOut()" disabled>Cash Out</button>
</div>
<div class="card
---
*Content truncated.*
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