RPC operator referenceHTTPS / WSS · JSON-RPC 2.0

Robinhood Chain RPC endpoint

Robinhood Chain (chain ID 4663) is served over HTTPS POST JSON-RPC 2.0. Archive nodes back the endpoint, supporting standard EVM methods, historical state, debug_* methods. Free, paid plans, and PAYG include Robinhood Chain.

Network information

Network	Robinhood Chain
Chain ID	4663
Endpoint	`https://rpc.solidrpc.io/YOUR_API_KEY/evm/4663`
Access	Free and paid
Type	Mainnet · L2
Native currency	ETH
Node types	Archive
Methods	standard, debug
Protocol	HTTPS JSON-RPC 2.0. WSS: newHeads and ordinary RPC for paid plans and active PAYG. WebSocket details

Operator note

On Robinhood Chain, eth_getProof and debug_accountRange are served for recent blocks only: the serving client keeps the state trie for the newest ~128 blocks, so a request for a block more than 96 blocks behind the chain head, or for earliest, safe or finalized, is answered by SolidRPC with JSON-RPC -32602 (historical_state_unavailable) instead of reaching a node. debug_storageRangeAt is not available on Robinhood Chain and is answered -32601 (method_unavailable_on_network). The arbtrace_* namespace is answered the same way: those Parity-style traces exist only for Arbitrum One's legacy blocks (before block 22,207,817), and Robinhood Chain has no such history, so no provider can serve them; use debug_traceTransaction or debug_traceBlockByNumber. A state override naming the ArbOS state address 0xa4b05fff…ffff (in eth_call, eth_estimateGas, eth_createAccessList, debug_traceCall or eth_simulateV1) is rejected by every node on Robinhood Chain before the call executes, so SolidRPC answers it -32602 (state_override_not_allowed); any other address can be overridden. These replies are neither billed nor counted as SLA-eligible calls. They apply to a single call and to a batch whose every entry is unservable; a batch that also carries serviceable calls is forwarded whole, and its unservable entries then fail on the node, are billed, and count as SLA failures. Historical balances, storage, code, calls and traces are unaffected.

Testing first? Robinhood Chain has a testnet on SolidRPC: Robinhood Testnet.

Quickstart

Fetch the latest Robinhood Chain block number. Replace YOUR_API_KEY with a key from the dashboard. New accounts start on the Free plan, no card required (see getting started):

Request example

curl https://rpc.solidrpc.io/YOUR_API_KEY/evm/4663 \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

Archive access and tracing

There is no separate archive endpoint for Robinhood Chain. Historical queries route to archive nodes automatically by block age, at no surcharge.

The debug_* tracing namespace is available:

Request example

curl https://rpc.solidrpc.io/YOUR_API_KEY/evm/4663 \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"debug_traceTransaction","params":["0xTRANSACTION_HASH",{"tracer":"callTracer"}],"id":1}'

Parity-style trace_* methods are not available on this chain. Use debug_traceTransaction and debug_traceBlockByNumber instead.

Details on archive nodes and tracing.

Limits and errors

Quotas and rate limits are account-wide, not per-chain. Method calls to Robinhood Chain draw from the same response-unit quota and rate limit as every other network. Error bodies are identical everywhere. See the error reference.

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