Robinhood Chain RPC URL and chain ID 4663 (network settings)

Robinhood Chain network settings: chain ID 4663 (0x1237), public RPC URLs, ETH gas, the block explorer, an eth_chainId check and what an indexed API adds.

Robinhood Chain is an Ethereum layer-2 network built on Arbitrum Orbit, with chain ID 4663 (0x1237 in hex) and ETH as its gas token. To connect a wallet or a script you need four things: the chain ID, an RPC URL (https://rpc.mainnet.chain.robinhood.com), the currency symbol ETH and the block explorer (https://robin.etherscan.io). The chain’s main assets are WETH, the USDG dollar stablecoin and tokenized stocks such as NVDA and TSLA; the Robinhood Chain concept page lists the WETH and USDG addresses.

Network settings: add Robinhood Chain to a wallet

Enter these values in a wallet’s “add network” form, or in your app’s chain config.

Setting	Value
Network name	Robinhood Chain
RPC URL	`https://rpc.mainnet.chain.robinhood.com`
Fallback RPC URL	`https://robinhood-rpc.publicnode.com`
Chain ID	`4663` (hex `0x1237`)
Currency symbol	ETH (18 decimals)
Block explorer	`https://robin.etherscan.io` (alternative: Hoodscan)

From a dapp, the same settings go into the standard wallet_addEthereumChain request (EIP-3085), which takes the chain ID in hex:

await window.ethereum.request({
  method: "wallet_addEthereumChain",
  params: [{
    chainId: "0x1237", // 4663
    chainName: "Robinhood Chain",
    nativeCurrency: { name: "Ether", symbol: "ETH", decimals: 18 },
    rpcUrls: ["https://rpc.mainnet.chain.robinhood.com", "https://robinhood-rpc.publicnode.com"],
    blockExplorerUrls: ["https://robin.etherscan.io"],
  }],
});

Check the chain ID over RPC

Any JSON-RPC client can confirm it is talking to Robinhood Chain. eth_chainId takes no parameters:

curl -s -X POST https://rpc.mainnet.chain.robinhood.com \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_chainId"}'
# {"jsonrpc":"2.0","id":1,"result":"0x1237"}

0x1237 is 4663. The fallback RPC returns the same result, and net_version returns the decimal string "4663". eth_blockNumber gives the latest L2 block in hex; Robinhood Chain had passed block 100 million when these docs were written.

Block time, gas and finality in one call

An RPC tells you about one block at a time. The Crius chain stats endpoint sums up the network over a window, from Crius’s own archive nodes, without an API key.

Example Anonymous · no key · 1 credit

Robinhood Chain over 24 hours: 101 ms blocks, 2-cent swaps

How fast are Robinhood Chain blocks, what does gas cost, and how far behind the head are the safe and finalized blocks?

GET/v1/robinhood/stats?window=24h

curl "https://api.crius.sh/v1/robinhood/stats?window=24h"

Real response 200 Captured Oct 28, 2026 · 100 lines (arrays trimmed)

{
  "data": {
    "blocks": {
      "active_wallets": 194641,
      "avg_block_time_ms": 101,
      "tps_1m": 44.6833,
      "txs": 2430221
    },
    "chain": "robinhood",
    "chain_id": 4663,
    "dex": {
      "by_dex": {
        "launch_curve": 114839,
        "pons_curve": 6920073,
        "uniswap_v2": 6992610,
        "uniswap_v3": 235116790,
        "uniswap_v4": 286137338
      },
      "traders": 148079,
      "trades": 1769098,
      "volume_usd": 535281650,
      "wash_volume_usd": 100833980
    },
    "eth_usd": 2355.49,
    "finalized_block": 100397649,
    "gas": {
      "avg_swap_cost_eth": 0.00000791235,
      "avg_swap_cost_usd": 0.0186374,
      "l1_base_fee_gwei": 0,
      "l2_gas_price_gwei": 0.021042
    },
    "head_block": 100406547,
    "l1_block": 26294099,
    "launchpads": [
      {
        "graduated": 16,
        "launches": 1780,
        "launchpad": "pons",
        "launchpad_name": "Pons",
        "volume_usd": 25485280
      },
      {
        "graduated": 0,
        "launches": 508,
        "launchpad": "long",
        "launchpad_name": "Long.xyz",
        "volume_usd": 10784246
      },
      {
        "graduated": 0,
        "launches": 20,
        "launchpad": "bankr",
        "launchpad_name": "Bankr",
        "volume_usd": 595435
      }
    ],
    "liquidity": {
      "locked_lp_usd": 44712347,
      "method": "2x quote side (ETH/WETH/USDG) of every pool; V3/V4 in-range",
      "tvl_usd": 322714989
    },
    "pools": {
      "by_dex": {
        "launch_curve": 1201,
        "pons_curve": 1780,
        "uniswap_v2": 1483,
        "uniswap_v3": 224,
        "uniswap_v4": 5457
      },
      "new": 10145
    },
    "reorgs": {
      "count": 0,
      "max_depth": 0
    },
    "safe_block": 100401329,
    "tokens": {
      "by_attribution": {
        "known_launchpad": 3527,
        "other": 4095
      },
      "new": 7622,
      "new_1h": 418
    },
    "window": "24h"
  },
  "meta": {
    "block": 100406547,
    "block_age_ms": 1026,
    "block_ts": 1793225052000,
    "chain": "robinhood",
    "coverage": {
      "note": "aggregates cover blocks indexed since start_block until backfill completes",
      "since_block": 0
    },
    "finalized_block": 100397649,
    "lag_ms": 26,
    "safe_block": 100401329
  }
}

What this tells you

chain_id: 4663 and blocks.avg_block_time_ms: 101: blocks arrived about every 100 ms over the window, with 2,430,221 transactions (blocks.txs) from 194,641 active wallets and 44.6833 transactions per second in the last minute (tps_1m).
gas.l2_gas_price_gwei: 0.021042: an average swap cost 0.00000791235 ETH, or $0.0186374 at eth_usd: 2355.49.
head_block: 100406547, safe_block: 100401329 and finalized_block: 100397649: the safe block trails the head while batches wait to be posted to Ethereum, and finalized trails safe until Ethereum finalizes them (Finality).
l1_block: 26294099 is the Ethereum block at that time: inside a contract, block.number returns this L1 number, not the L2 block.
reorgs.count: 0: no blocks were reorganized in the 24 hours.

Chain stats reference Runs from your browser on the anonymous plan Data looks wrong? Report it

Example Anonymous · no key · free

The chain as the Crius API serves it

Which chain ID, native token and block time does the Crius API report for Robinhood Chain?

GET/v1/chains

curl "https://api.crius.sh/v1/chains"

Real response 200 Captured Oct 28, 2026 · 15 lines (arrays trimmed)

{
  "data": [
    {
      "block_time_ms": 100,
      "chain_id": 4663,
      "name": "Robinhood Chain",
      "native": "ETH",
      "regions": [
        "rigel"
      ],
      "slug": "robinhood",
      "type": "arbitrum_orbit_l2"
    }
  ]
}

What this tells you

chain_id: 4663, name: "Robinhood Chain", native: "ETH" and type: "arbitrum_orbit_l2": the same network settings as the table above.
block_time_ms: 100 is the nominal block time; the measured average is in /stats (blocks.avg_block_time_ms).
slug: "robinhood" is the path segment in every endpoint (/v1/robinhood/...); the chain ID works too (/v1/4663/...).
/v1/chains and /v1/status are public: no key and no credits.

Supported chains reference Runs from your browser on the anonymous plan Data looks wrong? Report it

What an RPC gives you, and what an indexed API adds

An RPC node answers questions about raw state: a balance, a contract call, the logs in a block range. It is also how you send transactions. An indexed API has already read every block and turned the logs into answers.

Question	Over RPC	With the Crius API
Send a transaction, estimate gas, read a nonce	`eth_sendRawTransaction`, `eth_estimateGas`, `eth_getTransactionCount`	Not available: Crius is read-only. Keep an RPC for this.
What is this token worth in USD?	Find its pools, read `slot0` or reserves, then convert the quote to USD	`/token/{address}/price` (anonymous)
Who holds this token?	Replay every `Transfer` log since the token's first block	`/token/{address}/holders` (Free plan)
Which tokens launched in the last minute, and on which launchpad?	Watch every factory you know about	`/tokens?list=new` with `launchpad` on each row (anonymous)
Is this token a honeypot, and what tax does it charge?	Read the contract and simulate a buy and a sell	`/token/{address}/security` (anonymous)
Is the data final?	Ask for `safe` and `finalized` blocks yourself	`meta.safe_block`, `meta.finalized_block` and `meta.lag_ms` on every response

The RPC migration guide maps each RPC read to its Crius call, with before-and-after code.

Use it in your app

Pin the chain ID. Check eth_chainId returns 0x1237 when your app connects, and refuse to sign for any other chain.
Use the RPC for writes. Transactions, gas estimates, nonces and calls to your own contracts go through an RPC: the public one for testing, a dedicated provider or your own node in production.
Read market data from an index. Prices, trades, candles, holders, launches and security checks come from the Crius API; most of it works without a key.
Watch the index. /v1/status reports status (live, catching_up, stalled, starting) and lag_ms; every response carries meta.block.

// Confirm the network over RPC, then read chain-wide numbers from Crius.
const RPC = "https://rpc.mainnet.chain.robinhood.com";
const rpc = await fetch(RPC, {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({ jsonrpc: "2.0", id: 1, method: "eth_chainId" }),
});
const chainId = parseInt((await rpc.json()).result, 16);
if (chainId !== 4663) throw new Error(`wrong chain: ${chainId}`);

const { data } = await (await fetch("https://api.crius.sh/v1/robinhood/stats?window=1h")).json();
console.log(`block time ${data.blocks.avg_block_time_ms} ms, swap ≈ $${data.gas.avg_swap_cost_usd}, head ${data.head_block}`);

Frequently asked questions

What is the chain ID of Robinhood Chain?

4663, or 0x1237 in hex. eth_chainId on the public RPC returns "0x1237" and net_version returns "4663". Wallets, signing libraries (EIP-155) and wallet_addEthereumChain use this number.

What is the Robinhood Chain RPC URL?

The official public RPC is https://rpc.mainnet.chain.robinhood.com. https://robinhood-rpc.publicnode.com is a public fallback that returns the same chain ID. Both are shared by everyone, so production apps usually use a dedicated RPC provider or their own node for writes, and an indexed API such as Crius for market data.

What is the gas token on Robinhood Chain?

ETH. It has 18 decimals, like on Ethereum, and is shown with the symbol ETH in wallets. Fees are low: in the 24-hour stats sample the L2 gas price was 0.021042 gwei and an average swap cost $0.0186374 (gas.avg_swap_cost_usd).

Which block explorer does Robinhood Chain use?

Robinhood Chain Etherscan at robin.etherscan.io is the explorer to put in wallet settings. Hoodscan is an alternative explorer for the same chain.

Can I use the chain ID in Crius API URLs?

Yes. The chain segment of every path takes the slug or the chain ID, so /v1/4663/stats and /v1/robinhood/stats return the same data. The examples in these docs use robinhood.

Concept Robinhood Chain What Robinhood Chain is (chain id 4663), its block times, gas, L1 settlement, native assets (ETH, WETH, USDG), tokenized stocks, and how Crius indexes it. Read Guide Migrate from RPC Replace eth_getLogs scans, slot0 math and Transfer replays with Crius API calls on Robinhood Chain: a mapping table, before/after code and credit costs. Read Concept Finality & reorgs Finality levels on Robinhood Chain (latest, safe, finalized), how the Crius API marks them, and how chain reorganizations are handled in REST and WebSocket. Read Guide Chain stats dashboard Build a Robinhood Chain analytics dashboard with the Crius API: DEX volume, trades, TVL, launches, gas and volume history in your time zone, with code. Read API reference Chain stats API DEX volume and trades (per DEX), traders, TVL and locked liquidity, launches and graduations per launchpad, pools, gas costs and block times over a window (1h, 24h, 7d). Read Docs Quickstart Create a free Crius account, get an API key and make your first Robinhood Chain API request with cURL, JavaScript or Python in under five minutes. Read

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