Testnet Support
When testing crypto deposit and withdrawal flows in Sandbox, Uphold integrates testnet blockchains so you can simulate real on-chain activity without using real funds. Use the details returned by the Setup account deposit method endpoint to deposit testnet tokens into your sandbox account. Uphold does not supply test tokens. You must source them yourself using the faucets listed below, or any other preferred alternative.Recommended Token Faucets
| Asset | Testnet | Faucet |
|---|---|---|
| BTC | Testnet | Bitcoin Testnet Faucet, Coinfaucet, testnet-faucet.com |
| ETH | Sepolia | Infura Sepolia Faucet, GetBlock Faucet |
| XRP | Ripple Testnet | XRP Faucets |
| SOL | Devnet | Solana Faucet, SolFaucet, SolFaucet (Toga) |
| Multiple | Chainlink | faucets.chain.link |
| Multiple | Multiple | Chainstack Faucet |
Faucet availability and token limits are managed by third parties and may vary over time.
Withdrawals: Crypto withdrawals in Sandbox are simulated by default and do not reach the blockchain.