Testnet Faucet
To test Prism integrations and Agent Wallet transactions without real funds, you’ll need testnet stablecoins. The First Digital Labs Testnet Faucet provides test FDUSD and other testnet tokens for development.First Digital Labs Testnet Faucet
Get test FDUSD and other stablecoins on supported testnet chains
Getting Test Tokens
- Visit the First Digital Labs Testnet Faucet
- Enter your wallet address (your Agent Wallet address or any testnet address)
- Select the token and testnet chain
- Request tokens
Using Test Tokens
Testing Prism integrations:- Set up your SDK middleware with testnet chain IDs (e.g., Base Sepolia:
84532) - Use test stablecoins to simulate the full x402 payment flow
- Webhooks fire normally on testnet — test your full payment pipeline
- Fund your agent wallet with test stablecoins
- Test transfers, swaps, and commerce payments without risk
Testnet Chains
| Testnet | Chain ID | Mainnet Equivalent |
|---|---|---|
| Ethereum Sepolia | 11155111 | Ethereum |
| Base Sepolia | 84532 | Base |
| BSC Testnet | 97 | BSC |
| Arbitrum Sepolia | 421614 | Arbitrum |
Other Faucets
Beyond test FDUSD, you’ll likely need native gas tokens and other test tokens. These directories list faucets across chains:| Resource | Description |
|---|---|
| Alchemy Faucets | Faucets for Ethereum Sepolia, Base Sepolia, Arbitrum Sepolia, and more |
| Chainlink Faucets | Multi-chain faucet — testnet ETH, LINK, and native gas tokens |
| QuickNode Faucets | Aggregated faucets for major testnets |
| Coinbase Base Faucet | Base Sepolia ETH |
| BNB Chain Faucet | BSC Testnet BNB |