Robinhood Chain RPC and chain ID

Every wallet needs the same five values to reach Robinhood Chain. Here they are up front; the notes below cover the one-click shortcut, manual entry, and the mistakes worth avoiding.

The network parameters

• Network name: Robinhood Chain
• Chain ID: 4663 (hex 0x1237)
• RPC URL: https://rpc.mainnet.chain.robinhood.com
• Currency symbol: ETH
• Block explorer: https://robinhoodchain.blockscout.com

Robinhood Chain is an Ethereum L2 built on the Arbitrum Orbit stack, on public mainnet since July 1, 2026. Gas is paid in native ETH, blocks land roughly every 100 milliseconds, and transactions are sequenced first come, first served, with no public mempool. The same parameters are kept current on our chain page.

The one-click way

You rarely need to type any of this. Any app built for the chain can offer the network to your wallet through the standard add-chain flow. On Splitshot, pressing Connect Wallet while your wallet sits on another network shows a Switch to Robinhood Chain button; one click adds chain 4663 with the correct RPC and explorer, nothing typed by hand. Rabby users can also pull the chain in through Add Custom Network or the Chainlist quick-add.

Adding it by hand

If you prefer manual entry, in MetaMask that is Settings, then Networks, then Add a network manually. The same fields exist in every injected wallet:

1. Paste the RPC URL exactly as written above. A typo here is the most common failure.
2. Enter 4663 as the chain ID. Wallets verify this number against what the RPC endpoint actually reports, so if the wallet rejects it, the RPC you pasted is wrong, not the ID.
3. Set the currency symbol to ETH and the block explorer to the Blockscout URL, then save and switch.

Once saved, the wallet treats chain 4663 like any other network: balances show up under it, transaction history links out to Blockscout, and dapps can request a switch to it without re-entering anything.

The EIP-3085 snippet

For developers, or anyone driving a wallet programmatically, this is the standard wallet_addEthereumChain request as one line:

{"method":"wallet_addEthereumChain","params":[{"chainId":"0x1237","chainName":"Robinhood Chain","nativeCurrency":{"name":"Ether","symbol":"ETH","decimals":18},"rpcUrls":["https://rpc.mainnet.chain.robinhood.com"],"blockExplorerUrls":["https://robinhoodchain.blockscout.com"]}]}

EIP-3085 wants the chain ID in hex, so the snippet says 0x1237. That is 4663 in decimal; they are the same number, and wallets show you the decimal form.

Three things that trip people up

• Gas is ETH, and it has to be on this chain. ETH sitting on Ethereum mainnet cannot pay for a transaction on chain 4663. Bridge first; deposits through the canonical Arbitrum bridge typically arrive in about ten minutes. The bridging guide walks through it.
• A chain ID mismatch means a bad RPC, not a bad ID. 4663 is fixed. If your wallet complains that the returned chain ID does not match, some other network or a fake endpoint is answering at the URL you entered. Delete the entry and re-add it from a source you trust.
• Copycat sites exist. Fake bridge and RPC pages imitating official branding have circulated since launch. Take connection details from the official Robinhood docs at docs.robinhood.com/chain, from this page, or from an app you already use, never from a search ad or a DM.

Once you are connected

With the network added and a little ETH bridged over, everything else is ordinary EVM life, just faster: blocks arrive in a fraction of a second and a typical swap costs well under a few cents in gas as of July 2026. For a concrete data point, a real split-routed swap we measured on July 15, 2026 used 135,568 gas at about 0.068 gwei, roughly 0.0000092 ETH, which was under two US cents at that day's ETH price. If your next step is trading, the first swap walkthrough starts from exactly this point, and every token with a funded pool on the chain is browsable on the price hub.