Arbitrum One RPC and Data API

EVM-compatible

Endpoints

JSON-RPC (Path Key)

https://api.blockvectra.com/v1/arb_mainnet/{api_key}

JSON-RPC (Header: x-api-key)

https://api.blockvectra.com/v1/arb_mainnet

x-api-key: {api_key}

Data API

https://api.blockvectra.com/v1/data/arb_mainnet

x-api-key: {api_key}

Keyless Public Endpoint

https://api.blockvectra.com/v1/arb_mainnet/public

Rate Limit: 3 req/s per IP, burst 20, batch max 10

Send Transaction Limit: 1 req/s per IP, burst 3

Try without registration (basic methods, latest 1,000 blocks). Register for free for all methods including eth_getLogs and trace/debug, higher rate limits, Data API.

Get API Key Quickstart Try in Playground

Network Parameters

Chain ID	42161
WebSocket Support	Not supported

Quick Example

curl -X POST https://api.blockvectra.com/v1/arb_mainnet \
  -H "Content-Type: application/json" \
  -H "x-api-key: {api_key}" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

Limits

State History Window	Historical state for the most recent 6,000 blocks
eth_getLogs Max Block Range	1,000 blocks
Method Policy	Allow: `debug_traceBlockByHash`, `debug_traceBlockByNumber`, `debug_traceCall`, `debug_traceTransaction`, `eth_blobBaseFee`, `eth_blockNumber`, `eth_call`, `eth_chainId`, `eth_createAccessList`, `eth_estimateGas`, `eth_feeHistory`, `eth_gasPrice`, `eth_getBalance`, `eth_getBlockByHash`, `eth_getBlockByNumber`, `eth_getBlockReceipts`, `eth_getBlockTransactionCountByHash`, `eth_getBlockTransactionCountByNumber`, `eth_getCode`, `eth_getHeaderByHash`, `eth_getHeaderByNumber`, `eth_getLogs`, `eth_getProof`, `eth_getRawTransactionByBlockHashAndIndex`, `eth_getRawTransactionByBlockNumberAndIndex`, `eth_getRawTransactionByHash`, `eth_getStorageAt`, `eth_getTransactionByBlockHashAndIndex`, `eth_getTransactionByBlockNumberAndIndex`, `eth_getTransactionByHash`, `eth_getTransactionCount`, `eth_getTransactionReceipt`, `eth_getUncleByBlockHashAndIndex`, `eth_getUncleByBlockNumberAndIndex`, `eth_getUncleCountByBlockHash`, `eth_getUncleCountByBlockNumber`, `eth_maxPriorityFeePerGas`, `eth_sendRawTransaction`, `eth_simulateV1`, `eth_syncing`, `net_version`, `web3_clientVersion`, `web3_sha3` View Method Policy Documentation →

Data API

Blocks Transactions Address Transactions Transfers Token Metadata Data Freshness

Check the chain's data freshness

curl -s "https://api.blockvectra.com/v1/data/arb_mainnet/status/freshness" -H "x-api-key: {api_key}"

View Datasets Guide →

View Data API Documentation →

Frequently Asked Questions

Does Arbitrum One RPC support WebSocket?

Arbitrum One RPC does not support WebSocket connections.

Does Arbitrum One RPC support debug methods?

Arbitrum One RPC supports debug methods, including: debug_traceBlockByHash, debug_traceBlockByNumber, debug_traceCall, debug_traceTransaction.

Pricing

Get 30,000,000 CU on sign-up, refilled every 30 days (balances and rate limits are pooled across chains; no credit card required); priced per million calls: eth_blockNumber $0.10, eth_call $1.50, eth_getLogs $3.00.

View Pricing Plans →