Before testing payments in sandbox, set up MetaMask on Base Sepolia with test USDC, test EURC, and test cNGN. This guide walks through network and token configuration — no prior crypto experience needed.
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When should I use this?
You are testing checkout or payouts in sandbox for the first time.
You or your QA team need test USDC, EURC, or cNGN to simulate customer payments.
You want to verify wallet-direct or wallet-intent flows locally.
Why use Videpay?
Sandbox mirrors live behavior using free test tokens, no real money at risk.
Base Sepolia is the supported sandbox chain.
Test USDC and EURC from Circle's faucet and test cNGN from the cNGN faucet behave like real assets in your integration.
Developer testing checkout
Your backend developer creates a sandbox checkout link, opens it in Chrome with MetaMask, pays 25 test USDC, test EURC, or test cNGN, and confirms the payment.settled webhook fires — all before touching production.
Install and secure MetaMask
Install the MetaMask browser extension from metamask.io.
Create a new wallet and write down your seed phrase offline: never share it.
Pin MetaMask in your browser toolbar for easy access during testing.
Add Base Sepolia to MetaMask
In MetaMask: menu → Networks → Add custom network. Enter these values:
When creating checkout links or payments in sandbox, set chain to base (Base Sepolia). Use asset USDC, EURC, or cNGN depending on what you are testing.