> ## Documentation Index
> Fetch the complete documentation index at: https://developers.fd.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Testnet Faucet

> Get free testnet stablecoins to build and test without spending real money.

The [First Digital Labs Testnet Faucet](https://www.firstdigitallabs.com/testnet-faucet) dispenses test FDUSD and other tokens on supported testnets. Use them to test Prism integrations and Agent Wallet transactions end to end.

<Card title="First Digital Labs Testnet Faucet" icon="faucet" href="https://www.firstdigitallabs.com/testnet-faucet">
  Get test FDUSD and other stablecoins on supported testnet chains
</Card>

## Getting Test Tokens

1. Visit the [First Digital Labs Testnet Faucet](https://www.firstdigitallabs.com/testnet-faucet)
2. Enter your wallet address (your Agent Wallet address or any testnet address)
3. Select the token and testnet chain
4. Request tokens

Tokens typically arrive within a few seconds on testnet chains.

## 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

**Testing Agent Wallet:**

* 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           |

For native gas tokens (testnet ETH, etc.), use the respective chain faucets (e.g., [Base Sepolia Faucet](https://www.coinbase.com/faucets/base-ethereum-goerli-faucet)).

## 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](https://www.alchemy.com/faucets)                                   | Faucets for Ethereum Sepolia, Base Sepolia, Arbitrum Sepolia, and more |
| [Chainlink Faucets](https://faucets.chain.link/)                                     | Multi-chain faucet — testnet ETH, LINK, and native gas tokens          |
| [QuickNode Faucets](https://faucet.quicknode.com/)                                   | Aggregated faucets for major testnets                                  |
| [Coinbase Base Faucet](https://www.coinbase.com/faucets/base-ethereum-goerli-faucet) | Base Sepolia ETH                                                       |
| [BNB Chain Faucet](https://www.bnbchain.org/en/testnet-faucet)                       | BSC Testnet BNB                                                        |