Robinhood Chain Testnet: RPC Endpoint, Faucet, and Wallet Setup

Chain settings at a glance

Robinhood Chain Testnet is the public test network for Robinhood Chain, an Arbitrum Layer 2 that settles to Ethereum and uses ETH for gas. The values below are the ones you paste into MetaMask, Foundry, Hardhat, or a viem chain definition. Confirm them against the official Robinhood Chain documentation before committing them to a shared config, since testnets can be reset or reconfigured.

Quick recommendation: which endpoint should you use?

Most developers should start with the endpoint published in the official Robinhood Chain docs, then move to a managed provider when a specific constraint appears. Use this short guide to decide.

• Just exploring or deploying a first contract: the official testnet endpoint is enough.
• Running a test suite in CI that makes hundreds of calls per run: a managed RPC API with a stable key avoids shared-endpoint throttling.
• Reading historical state or replaying events from early blocks: you need an archive-capable endpoint.
• Subscribing to logs or pending transactions: confirm WebSocket support before you build around it.
• Running an indexer, bot, or long-lived staging service: a dedicated node gives you isolated capacity and simpler debugging.

Faucet: what you get and how often

The official Robinhood Chain Testnet faucet sends 0.01 testnet ETH and five units of each sample Stock Token (for example TSLA, AMZN, PLTR, NFLX, and AMD) to an Ethereum address or ENS name. Claims are limited to once every 24 hours per address.

That drip is designed for contract and UI testing, not load testing. If you need larger balances for stress tests, plan to accumulate over several days or ask the Robinhood Chain team about developer allocations. Treat faucet tokens as disposable: testnet state can be reset.

• Paste an Ethereum address or ENS name into the faucet form.
• Use the faucet page's add-to-wallet shortcut if you have not configured the network yet.
• Import the Stock Token contracts into your wallet to see balances.
• Record the token addresses in your project config so tests do not hardcode them.

Wallet and framework configuration

For MetaMask, open Settings, then Networks, then Add a network manually and enter the chain settings above. For code, define the chain once and reuse it. The viem example below shows the shape; replace the RPC URL with the endpoint you actually intend to use.

• viem: define a chain object with id, name, nativeCurrency, and rpcUrls, then pass it to createPublicClient and createWalletClient.
• Hardhat: add a robinhoodTestnet entry under networks with url and accounts, and keep the private key in an environment variable.
• Foundry: add an rpc_endpoints entry in foundry.toml and reference it with --rpc-url robinhood_testnet.
• Keep a separate .env.testnet file so mainnet keys and chain IDs never leak into test runs.

Verify the endpoint before you build on it

A single eth_chainId call tells you whether you are talking to the right network. Follow it with eth_blockNumber and a read of a known contract to confirm the endpoint is synced and serving state. Run these checks in CI as a smoke test so a misconfigured endpoint fails fast.

• eth_chainId should return 0x... matching 46630.
• eth_blockNumber should advance between calls.
• eth_getCode on a known contract address should return bytecode, not 0x.
• eth_getLogs over a small block range should return without a range error.
• If you plan to use WebSockets, open a subscription and confirm you receive new heads.

Failure symptoms and likely fixes

Most Robinhood Chain Testnet connection problems fall into a small set of categories. Use the table to narrow down the cause before changing providers.

When to move from the public endpoint to managed or dedicated RPC

The public testnet endpoint is shared, so throughput and log-range limits are outside your control. That is fine for a first deploy, but it becomes a source of flaky tests once your suite grows. A managed RPC API gives you a stable key, documented limits, and a support path; a dedicated node gives you isolated capacity for indexers, bots, and long-running staging services.

OnFinality provides RPC API access and dedicated node infrastructure across supported RPC networks. Check the Robinhood Chain network page for current availability, then compare RPC pricing against your expected request volume. If you are still weighing providers, the RPC provider selection guide walks through archive depth, WebSocket support, and failover criteria.

• Managed RPC API: best when you want a stable endpoint without operating nodes.
• Dedicated node: best when you need isolated throughput, custom pruning, or predictable performance.
• Self-hosted: best when you need full control and have the operational capacity to run and monitor a node.

Frequently Asked Questions