CRIUS 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.
Robinhood Chain is an Ethereum layer-2 network (an Arbitrum Orbit chain) with chain id 4663 (0x1237). Transactions are ordered by a sequencer and settled on Ethereum.
| Chain id | 4663 |
| Native gas token | ETH |
| Block time | about 100 ms |
| Official RPC | https://rpc.mainnet.chain.robinhood.com |
| Explorers | Robinhood Chain Etherscan, Hoodscan |
Assets you’ll see everywhere
| Symbol | Address | Role |
|---|---|---|
| ETH | 0x0000000000000000000000000000000000000000 |
Native gas token; quote asset of many pools and launch curves |
| WETH | 0x0bd7d308f8e1639fab988df18a8011f41eacad73 |
Wrapped ETH (ERC-20) |
| USDG | 0x5fc5360d0400a0fd4f2af552add042d716f1d168 |
Dollar stablecoin (6 decimals) |
USD prices on Crius are derived from these on-chain pools: a token is priced against its deepest pool’s quote asset, and the quote asset is converted to USD through the deepest ETH/USDG pool.
The addresses of the other main contracts (stock tokens, Uniswap v2, v3 and v4, launchpads, LP lockers, v4 hooks, bridges) are listed on Robinhood Chain contract addresses.
Two block numbers
Robinhood Chain blocks arrive every ~100 ms, but inside a smart contract block.number returns the Ethereum L1 block (about every 12 seconds). Contract rules written “per block” (anti-snipe windows, sell limits) therefore act on L1 blocks. Crius reports the L2 block everywhere and adds l1_block where it matters.
Finality
A transaction is visible as soon as the sequencer includes it (latest), becomes safe when its batch is posted to Ethereum, and finalized when Ethereum finalizes that batch. See Finality & reorgs.
How Crius indexes it
Crius runs its own Robinhood Chain archive nodes and decodes every block as it arrives: transfers, swaps on every Uniswap version, launchpad events, LP locks, contract calls. State (prices, holders, pools) is kept in memory for fast answers; history is stored back to block one. Every response tells you the block it reflects (meta.block) and how far behind the head it is (meta.lag_ms, usually well under a second).
Get your free Crius API key
Every example on this page works with a free key: higher rate limits than the anonymous plan, holders, wallets and the WebSocket stream. No card needed.
- Robinhood Chain (4663) only, from our own archive nodes
- REST + WebSocket
- Pay on-chain or by card