Sparkling — Trading App for Cross-Chain Crypto Swaps

From Trading Bots to an AI Trading Agent

Our app replaces the old choice between risky automation and limited simple apps. Trading bots need exchange API keys and keep your money on a centralized platform; simple swap apps leave you to pick chains, bridges and settings yourself. We built an AI agent that does the analysis and routing, while control over your funds stays entirely with you.

No API Keys and Full Self-Custody

We never ask for exchange API keys or take custody of your crypto. When you log in with your email, we create a self-custodial wallet for you on Turnkey’s signing infrastructure. Our agent prepares each transaction, but only you can approve and sign it, and the recovery phrase is yours to export whenever you like.

Trade in Plain English

Write to the agent the way you would talk to a person: “move 200 USDC from Ethereum into SOL”, “swap half my ETH to bitcoin” or “show my balance”. The agent understands the intent, finds the market and the best route it can, calculates the amount and prepares the trade for your approval.

Manual Trading When You Want It

Prefer to set every detail yourself? The manual trading screen gives you the same swaps without chatting, ending in the identical approval step.

Core Features of the Sparkling App

Everything you need for cross-chain crypto trading sits in one app, with the agent doing the routine work behind every trade.

Cross-Chain Swaps Without Manual Bridging

Moving assets between blockchains usually means separate wallets, a bridge you have to choose and several transactions in a row. The app handles that for you. The agent routes your swap through decentralized exchanges and bridges behind the scenes and shows you the whole path as one quote, so a swap from Ethereum to Solana takes one approval.

Best-Route Quotes from Several Sources

We do not fill your order from a single order book. We gather quotes from multiple liquidity providers, Bebop among them, and the agent weighs them before showing you the result: what leaves your wallet, roughly what arrives, the networks involved and the total cost.

One Confirmation Card for Every Trade

Before anything executes, a confirmation card lays out the price, the route and every fee. Approve it in one tap, or close it and nothing happens.

Trade History You Can Use

Every completed trade is saved with its date and amount. That makes it easy to track your positions and keep the records you need at tax time.

Sparkling Card

A Sparkling Card connected to your account is on the way, letting you spend what you hold in the app. We will share the list of countries, the conditions and the timing in our official channels.

How Sparkling Keeps Your Crypto Secure

We designed the app so that we never hold your crypto and cannot move it without your signature. Telegram and your browser are only the interface: they carry your requests and show trade cards, while your wallet is an independent self-custodial account protected by Turnkey.

• You sign in by email with a single-use code. Our team will never ask you for it.
• Every transaction needs your explicit approval before it is sent.
• Mini app users should protect their Telegram account with two-step verification.
• Our one official Telegram bot is @sparkling_trade_bot. Accounts that message you first are not Sparkling.

Sparkling for US Crypto Traders

US users can make AI-assisted swaps on all four of our supported blockchains, in the web app and in Telegram. Our app is designed around how US users hold crypto today: across several chains, with dollar stablecoins at the center.

Dollar Stablecoins Across Chains

Most US trades start or end in a dollar stablecoin such as USDC. With our app you can move between USDC on Ethereum and Solana and other assets in one step. The GENIUS Act, signed in July 2025, is the first federal law for payment stablecoins and requires full reserve backing; it takes effect by January 2027 at the latest.

Clear Records for Your Tax Return

The IRS treats crypto as property, so each of your crypto swaps is a taxable event reported on Form 8949 and Schedule D. Form 1099-DA comes from custodial brokers, so trades in your own wallet are generally not reported that way. Your trade history in the app shows the date and amount of every swap, which makes your own records simple.

New in the Sparkling Account

Sparkling now connects to Lighter, an Ethereum zk-rollup exchange, for perpetual futures and BTC and ETH Up/Down options, alongside Hyperliquid, and lists a pre-IPO perpetual on Anthropic. The Anthropic market is a contract on expected valuation, not shares, and Sparkling is not affiliated with Anthropic. These derivatives are offered outside the US. For US users the account stays focused on spot swaps, which is also how active traders here approach day trading in the app.

Features Available in the US

Important Notice for US Users

Sparkling is self-custodial software, not a bank, broker-dealer, exchange or custodian, and we do not hold customer funds. Self-custodial balances are not FDIC- or SIPC-insured. Prices can swing widely, and you are responsible for complying with the laws and tax rules that apply to you.

Free to Use, Pay Only When You Trade

Sparkling is free to use. We do not charge a monthly subscription and do not lock features behind a premium tier. Talking to the agent, getting quotes and viewing your history cost nothing.

No Subscription and No Surprises

You pay only when a trade executes: the network fee plus our small service fee. Both appear on the quote ahead of your approval, and nothing is added afterwards.

Start in Minutes

Since the app is self-custodial, getting started is quick: log in with your email, add crypto and make your first swap.