Robinhood Chain RPC Node

Arbitrum Orbit L2 · chain ID 4663 · gas in ETH · 27 JSON-RPC methods · WebSocket · sequencer feed

Last updated: September 23, 2026

Get API key Read the documentation

Network details

Try it without a key

https://triport.io/rpc/robinhood/public answers the 18 light read methods with no account and no key, from a browser as well — CORS is open, so a wallet or a chain list can call it directly. It is capped at 60 calls per minute per IP, five calls per batch and a 64 KiB body, and it serves neither logs, proofs and debug_* nor submission, subscriptions or the feed: those return HTTP 403 pointing at the keyed URL. There is no availability commitment on it and the limits can change — it exists for wallets, chain lists and a first look, not for a workload. See the public endpoint reference.

What is available

JSON-RPC — 27 methods

18 standard reads, 7 heavy reads and 2 submission routes, including eth_getBlockReceipts, eth_getProof and four debug_* trace methods. Full list: Robinhood JSON-RPC reference.

WebSocket — newHeads and logs

Available from Basic with scope robinhood:rpc. newHeads is served from a shared warm header layer; logs takes an address/topic filter. newPendingTransactions is not available, and robinhood_pendingBlock is an operator-controlled extension that is disabled by default. See WebSocket.

Sequencer feed — assembled L2 blocks

From Pro with scope robinhood:feed: 2 concurrent streams on Pro, 4 on Business and Enterprise. Reconnect with ?from_sequence=<cursor>; the first frame reports earliestAvailableSequence, latestAvailableSequence and bufferComplete. See Sequencer feed.

What is specific to Triport here

• Four debug_* trace methods in the published catalog — best-effort through a single operator, without an availability SLA.
• eth_getBlockReceipts for whole-block receipt reads instead of per-transaction fan-out.
• Feed resume by cursor with an explicit bufferComplete flag, so a gap is visible instead of silent.
• A continuously warm receive fan that publishes the first arrival per sequenceNumber and deduplicates later copies — it trims the per-socket tail, not a promised average.
• JSON-RPC bodies and batches up to 4 MiB; every batch element is checked, and N elements cost N requests.
• Flat monthly price with no compute units and no per-call credits.

Quickstart

# curl
curl https://triport.io/rpc/robinhood \
  -H 'x-token: $TRIPORT_API_KEY' -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

# viem
import { createPublicClient, defineChain, http } from "viem";
const robinhood = defineChain({
  id: 4663,
  name: "Robinhood Chain",
  nativeCurrency: { name: "Ether", symbol: "ETH", decimals: 18 },
  rpcUrls: { default: { http: ["https://triport.io/r/<API_KEY>/robinhood"] } },
});
const client = createPublicClient({ chain: robinhood, transport: http() });

# ethers v6
new ethers.JsonRpcProvider("https://triport.io/r/<API_KEY>/robinhood", 4663);

# Hardhat / Foundry
networks: { robinhood: { url: "https://triport.io/r/<API_KEY>/robinhood", chainId: 4663 } }
rpc_endpoints = { robinhood = "https://triport.io/r/<API_KEY>/robinhood" }

Wallets and config files cannot send custom headers, so they use the keyed URL form; server code should send the x-token header instead and keep the key out of URLs and logs.

What you can build

Caveats we publish with the capability

Limits and plans

Bodies and WebSocket messages are capped at 4 MiB; an oversized batch returns HTTP 413 batch_too_large. Plans: Basic $20, Pro $249, Business $499, Enterprise from $999 per month; Free is a 7-day trial with a single key in the EU region, not a permanent plan. See network limits.

Every plan with its limits on every network, and what a plan costs at its cap: RPC pricing.

What is not in the product yet

Transaction submission is published with status accept_unverified: the route is implemented, but acceptance of a valid transaction is not yet verified. See submission and conditional transactions.

All 27 Robinhood JSON-RPC methods

• debug_traceBlockByHash
• debug_traceBlockByNumber
• debug_traceCall
• debug_traceTransaction
• eth_blockNumber
• eth_call
• eth_chainId
• eth_estimateGas
• eth_feeHistory
• eth_gasPrice
• eth_getBalance
• eth_getBlockByHash
• eth_getBlockByNumber
• eth_getBlockReceipts
• eth_getCode
• eth_getLogs
• eth_getProof
• eth_getStorageAt
• eth_getTransactionByHash
• eth_getTransactionCount
• eth_getTransactionReceipt
• eth_maxPriorityFeePerGas
• eth_sendRawTransaction
• eth_sendRawTransactionConditional
• eth_syncing
• net_version
• web3_clientVersion