What You Need
PrometheX staging runs on Arbitrum Sepolia testnet. To start trading, you need two tokens:| Token | What It’s For | How to Get |
|---|---|---|
| Sepolia ETH | Gas fees for depositing | PrometheX official faucet |
| tUSDC | The trading token on PrometheX | PrometheX official faucet |
All tokens on testnet have no real value — they’re free practice money.
Prerequisites: Set Up MetaMask
Install MetaMask
If you don’t have it yet, install MetaMask from metamask.io. Available as a browser extension for Chrome, Firefox, Brave, and Edge.
Add Arbitrum Sepolia network
Open MetaMask and add the testnet. You can either:
- Visit chainlist.org and click Add to MetaMask
- Or add manually with these settings:
| Property | Value |
|---|---|
| Network Name | Arbitrum Sepolia |
| RPC URL | https://sepolia-rollup.arbitrum.io/rpc |
| Chain ID | 421614 |
| Currency Symbol | ETH |
| Block Explorer | https://sepolia.arbiscan.io |
Connect MetaMask to PrometheX
Go to app.promethex.market, click Sign In → Connect Wallet → select MetaMask.
Step 1: Claim Testnet ETH and tUSDC
Use the PrometheX official faucet to get both tokens in one step. Connect your wallet, sign a message, and claim. Open FaucetOpen the faucet page
Visit the PrometheX Faucet and click Connect MetaMask. Approve the connection in MetaMask.
Sign & claim tokens
Click Sign & Claim. MetaMask will ask you to sign a message to verify wallet ownership — this is not a transaction and costs no gas.
Receive tokens
The faucet sends both tokens to your wallet automatically:
- 0.01 ETH — enough for gas fees
- 10,000 tUSDC — enough for many test trades
Step 2: Deposit tUSDC into PrometheX
Now that you have tUSDC in MetaMask, deposit it into PrometheX to start trading.Open your wallet on PrometheX
Go to app.promethex.market. Make sure you’re signed in with your MetaMask wallet. Click your profile icon → Wallet.
Approve and confirm
MetaMask will prompt you twice:
- Approve — Allows the PrometheX contract to spend your tUSDC
- Deposit — Transfers tUSDC from your wallet into the platform
Start trading
Once confirmed, your balance updates on PrometheX. Head to the Markets page to place your first trade!
After depositing, all trades on PrometheX are gasless — the platform sponsors gas fees via account abstraction. You only need ETH for the initial deposit step.
Quick Summary
Advanced: Claim tUSDC via Arbiscan
If you prefer to interact with the contract directly, you can call the tUSDCfaucet() function on Arbiscan.
tUSDC Contract: 0x52cb113e383c654fB78Ff56615ce3719193C6408
Open the Write Contract page
Go to the tUSDC Write Contract page on Arbiscan.
Mainnet: Getting Real USDC
PrometheX mainnet on Arbitrum One is coming soon. The instructions below are for when real trading goes live.
Option 1: Buy on an Exchange
Option 2: Bridge from Ethereum
If you already have USDC on Ethereum, bridge it via bridge.arbitrum.io. Takes about 10 minutes.Option 3: Buy Directly on Arbitrum
Services like Ramp Network, MoonPay, and Transak let you buy USDC directly on Arbitrum with a credit card.Troubleshooting
Faucet returns 429 (rate limited)
Faucet returns 429 (rate limited)
The faucet allows one claim per wallet address every 24 hours. Wait for the cooldown to expire.
I don't see my tUSDC in MetaMask
I don't see my tUSDC in MetaMask
You need to import the token manually. In MetaMask: Import Tokens → paste
0x52cb113e383c654fB78Ff56615ce3719193C6408 → Symbol: USDC → Decimals: 6.MetaMask shows wrong network
MetaMask shows wrong network
Click the network dropdown in MetaMask and switch to Arbitrum Sepolia (Chain ID: 421614). If it’s not listed, add it manually using the network details above.
Deposit approval stuck or fails
Deposit approval stuck or fails
If the approve transaction is pending too long, try Speed Up in MetaMask (click the pending tx). If it fails, make sure you have enough ETH for gas.


