Toaa Launch App ↗
Documentation

Navigatingwith Kepler

Everything you need to put USDG to work on Robinhood Chain: setting up, depositing, withdrawing, and how Kepler decides which vault comes first.

01What is Toaa

Toaa Finance is a non-custodial interface for earning yield on USDG on Robinhood Chain. It shows a small set of professionally curated lending vaults, ranks them with Kepler, and lets you deposit and withdraw from your own wallet.

Toaa never holds your funds. Your USDG moves from your wallet straight into the vault you choose, and back to you when you withdraw. Toaa has no admin key over your position and cannot move your money.

In one line: you pick a vault, you sign the transaction, the vault pays you yield, and you can leave whenever the vault has liquidity.

02Getting started

You need three things: a browser wallet, a little ETH on Robinhood Chain for gas, and USDG.

  1. Install a wallet. Rabby or MetaMask both work. Toaa never asks for your seed phrase, so never type it into any website.
  2. Connect. Open the app and press Connect wallet. Toaa asks your wallet to switch to Robinhood Chain and adds the network if it is missing.
  3. Bring ETH for gas. Bridge ETH from Ethereum with the official Arbitrum portal. A small amount covers many transactions.
  4. Get USDG. Swap ETH or another token for USDG on a Robinhood Chain exchange. USDG is the only asset Toaa vaults accept.

03Depositing

  1. Choose a vault from the list. The one tagged Kepler pick currently has the best score.
  2. Enter an amount, or press MAX to use your whole USDG balance.
  3. Tick the risk acknowledgement. You only need to do this once per browser.
  4. Confirm the transactions in your wallet. The first time, you approve the vault to take exactly the amount you entered, never an unlimited amount. Then you sign the deposit itself.

Each step shows a link to the explorer so you can follow it on-chain. Before anything is sent, the app simulates the transaction. If the simulation fails, nothing is sent and you see the reason.

In return for your USDG you receive vault shares. Shares grow in value as the vault earns, so the same number of shares is worth more USDG over time.

04Withdrawing

Switch the panel to Withdraw, enter an amount in USDG or use 25 / 50 / 75 / MAX, and confirm in your wallet. Choosing MAX redeems every share you hold, so nothing is left behind.

Liquidity matters. Vaults lend most deposits out to earn yield. You can withdraw up to the amount shown as Withdrawable now. If you need more than that, withdraw part now and the rest later, as borrowers repay.

05How Kepler scores

Kepler is Toaa's ranking engine. It looks at three live numbers for every vault and combines them into one score:

Score = APY × Depth × Liquidity
FactorWhat it measuresFull marks
APYTotal yield right now, base plus rewards.Higher is better
DepthHow much money is deposited. Larger vaults are harder to move and more battle-tested. Scaled from 0.30 up to 1.00.$1B deposited
LiquidityHow much you could withdraw today. Scaled from 0.30 up to 1.00.$10M withdrawable

Depth and liquidity use a logarithmic scale, so going from $100K to $1M counts as much as going from $100M to $1B. The effect: a high APY on a small, illiquid vault scores lower than a steady APY you can actually get out of.

The Kepler's reasoning panel in the app shows each factor for every vault and explains in plain words why the top pick won. Data refreshes every 90 seconds.

Kepler is a guide, not advice. The score is a transparent formula, not a prediction or a guarantee. Kepler does not move your funds; switching vaults means withdrawing and depositing yourself.

06Understanding APY

Each vault shows a total APY split into two parts:

  • Base yield: interest paid by borrowers. It moves with lending demand.
  • Rewards: extra incentives on top. These are temporary and can change or end at any time.

APY is variable and is not a promise of future returns. The APY history chart shows how it has moved over the last 7 days, 30 days, or since data began.

07Portfolio

The Portfolio tab reads your shares directly from each vault contract and converts them into USDG, so the value is always current. It also estimates earnings per day from the current APY.

Profit is calculated from deposits and withdrawals made through Toaa in the same browser. Positions opened elsewhere show as not tracked, but their value is still correct.

08Risks

  • Smart-contract risk: vault or lending contracts could have bugs.
  • Curator risk: curators choose where vault funds are lent, and they can make mistakes.
  • Borrower and market risk: sharp price moves can cause bad debt in lending markets.
  • Liquidity risk: you may not be able to withdraw everything at once.
  • Stablecoin risk: USDG could lose its dollar peg.
  • Network risk: Robinhood Chain or its RPC providers could be congested or unavailable.

Only deposit what you can afford to lose. Read the Terms before using the app.

09Network & contracts

NetworkRobinhood Chain mainnet (Ethereum Layer 2)
Chain ID4663 (0x1237)
Gas tokenETH
RPChttps://rpc.mainnet.chain.robinhood.com
Explorerrobinhoodchain.blockscout.com
USDG0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168

Supported vaults (ERC-4626)

VaultCuratorAddress
Steakhouse USDGSteakhouse Financial0xBeEff033…5409dd
Galaxy USDG RH Stock TokensGalaxy Curation0xd0dACE70…C830FE
Yearn Stonk USDGYearn0x8c258F25…A4a9A2
Purinta USDGApi30x37788ff0…21d0A8

Toaa only sends transactions to these vaults and to the USDG contract. Before a vault can receive deposits, the app checks on-chain that its asset really is USDG.

10FAQ

Does Toaa charge a fee?

Toaa adds no fee of its own. Vaults may take a performance fee from yield, shown as Perf. fee in the app, and you pay network gas in ETH.

Can Toaa access or freeze my funds?

No. Toaa is only an interface. Your shares sit in your own wallet and only you can withdraw them.

Why can't I deposit ETH or other tokens directly?

Toaa vaults accept USDG only. Swap to USDG on a Robinhood Chain exchange first.

My wallet says "wrong network".

Click the button in the app and approve the switch to Robinhood Chain (chain ID 4663) in your wallet.

The app says the vault rejected the transaction in simulation.

Nothing was sent and no gas was spent. Common causes: not enough USDG, the amount is above what the vault can pay out right now, or your balance changed. Try a smaller amount or refresh.

Does Kepler move my money automatically?

No. Kepler ranks vaults and explains why. You decide and sign every move yourself.