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Free HyperEVM RPC endpoint and Chain ID

HyperEVM uses chain ID 999; its keyless public RPC endpoint is https://api.blockvectra.com/v1/hyperevm_mainnet/public (3 requests per second per IP), while eth_getLogs requires an API key.

Connect wallets and build applications with HTTP APIs for developers and AI Agents.

RPC endpoints and network parameters

Mainnet

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

Try RPC without an API key

curl -sS 'https://api.blockvectra.com/v1/hyperevm_mainnet/public' \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_chainId","params":[]}'

Add a network to your wallet

Copy these values into your wallet’s custom network form.

{
  "networkName": "HyperEVM",
  "rpcUrl": "https://api.blockvectra.com/v1/hyperevm_mainnet/public",
  "chainId": 999,
  "currencySymbol": "HYPE",
  "blockExplorerUrl": "https://www.hyperscan.com/"
}
hyperscan.com

Incoming transfer Webhooks

Receive address activity at your HTTPS endpoint. Follow the guide to create a subscription, verify signatures and deduplicate deliveries.

HyperEVM

Incoming transfer Webhooks

Integration tutorials

Endpoints

No API key required. Wallet methods only, rate-limited per IP. Check GET /v1/chains for current methods and limits.

Free public RPC endpoint
https://api.blockvectra.com/v1/hyperevm_mainnet/public
curl -X POST 'https://api.blockvectra.com/v1/hyperevm_mainnet/public' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'
Rate Limit: 3 req/s per IP, burst 20, batch max 10
Read-only; cannot send transactions
Public methods
  • eth_chainId
  • net_version
  • eth_blockNumber
  • eth_getBalance
  • eth_getTransactionCount
  • eth_getCode
  • eth_getStorageAt
  • eth_call
  • eth_estimateGas
  • eth_gasPrice
  • eth_maxPriorityFeePerGas
  • eth_feeHistory
  • eth_getBlockByNumber
  • eth_getBlockByHash
  • eth_getTransactionByHash
  • eth_getTransactionReceipt
  • eth_syncing
  • web3_clientVersion
All free public RPC endpoints
Public history: latest 1,000 blocks. Register for free to use free API credits for this chain’s supported methods.
JSON-RPC (Path Key)
https://api.blockvectra.com/v1/hyperevm_mainnet/{api_key}
JSON-RPC (Header: x-api-key)
https://api.blockvectra.com/v1/hyperevm_mainnet
x-api-key: {api_key}
Data API
https://api.blockvectra.com/v1/data/hyperevm_mainnet
x-api-key: {api_key}
Get API Key Quickstart HyperEVM backfill and polling Try in Playground

WebSocket

WebSocket (Path Key)
wss://api.blockvectra.com/v1/hyperevm_mainnet/{api_key}
WebSocket (Header: x-api-key or Authorization)
wss://api.blockvectra.com/v1/hyperevm_mainnet
x-api-key: {api_key}
Authorization: Bearer {api_key}
Supported Subscription Types
  • newHeads
  • logs (filter must include address or topic0)
OpenAPI Subscription ReferenceWebSocket Subscriptions Guide

Network Parameters

Chain ID999
Free public RPC endpointhttps://api.blockvectra.com/v1/hyperevm_mainnet/public
Methods with an API key25
Data APISupported
WebSocket SupportSupported
Webhook pushSupported · Confirmations 1–1 (default 1)
Webhook push guide
Send TransactionsSupported
Send Transactions (Keyless Public Endpoint)Not supported
State History WindowUnknown
eth_getLogs Max Block Range1,000 blocks
Data API DatasetsBlocks, Transactions, Address Transactions, Transfers, Token Metadata, Data Freshness
Supported Subscription TypesnewHeads, logs
Related testnetsUnknown
Related guidesHyperEVM backfill and polling

Quick Example

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

Chain Facts

NotesHyperEVM blocks include HyperCore system transactions (from address 0x2222…2222 or 0x20…, gasPrice 0).

Limits

State History WindowUnknown
eth_getLogs Max Block Range1,000 blocks
Method Policy
Allow: eth_blockNumber, eth_call, eth_chainId, eth_estimateGas, eth_feeHistory, eth_gasPrice, eth_getBalance, eth_getBlockByHash, eth_getBlockByNumber, eth_getBlockReceipts, eth_getBlockTransactionCountByHash, eth_getBlockTransactionCountByNumber, eth_getCode, eth_getLogs, eth_getStorageAt, eth_getTransactionByBlockHashAndIndex, eth_getTransactionByBlockNumberAndIndex, eth_getTransactionByHash, eth_getTransactionCount, eth_getTransactionReceipt, eth_maxPriorityFeePerGas, eth_syncing, net_version, web3_clientVersion, eth_sendRawTransaction

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/hyperevm_mainnet/status/freshness" -H "x-api-key: {api_key}"

View Datasets Guide →

View Data API Documentation →

Choose a task

Solutions for your onchain tasks

Next steps with an API key

eth_getLogs

set -eu
: "${BLOCKVECTRA_API_KEY:?BLOCKVECTRA_API_KEY is required}"
validate_response='import json,re,sys
response=json.load(sys.stdin)
if not (type(response) is dict and response.get("jsonrpc")=="2.0" and type(response.get("id")) is int and response["id"]==1 and "error" not in response and "result" in response):
    sys.exit("Invalid JSON-RPC response")
result=response["result"]
if sys.argv[1]=="head":
    if not (type(result) is str and re.fullmatch(r"0x(?:0|[1-9a-fA-F][0-9a-fA-F]*)",result)):
        sys.exit("Invalid block quantity")
    print(result)
else:
    if not (type(result) is list and all(type(log) is dict for log in result)):
        sys.exit("Invalid logs result")
    print(json.dumps(response,indent=2))'
head_response=$(curl -fsS 'https://api.blockvectra.com/v1/hyperevm_mainnet' -H "x-api-key: $BLOCKVECTRA_API_KEY" -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}')
head=$(printf '%s' "$head_response" | python3 -c "$validate_response" head)
logs_response=$(curl -fsS 'https://api.blockvectra.com/v1/hyperevm_mainnet' -H "x-api-key: $BLOCKVECTRA_API_KEY" -H 'Content-Type: application/json' \
  -d "{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"eth_getLogs\",\"params\":[{\"fromBlock\":\"$head\",\"toBlock\":\"$head\"}]}")
printf '%s' "$logs_response" | python3 -c "$validate_response" logs
eth_getLogs

Data API

curl -fsS 'https://api.blockvectra.com/v1/data/hyperevm_mainnet/status/freshness' -H "x-api-key: $BLOCKVECTRA_API_KEY"
Data API

WebSocket

echo '{"jsonrpc":"2.0","id":1,"method":"eth_subscribe","params":["newHeads"]}' | websocat --no-close -H="x-api-key: $BLOCKVECTRA_API_KEY" 'wss://api.blockvectra.com/v1/hyperevm_mainnet'
WebSocket
Create a Webhook subscription Create a Webhook subscription Usage and CU Top up

Frequently Asked Questions

What are the HyperEVM RPC endpoint and Chain ID?

HyperEVM uses chain ID 999; its keyless public RPC endpoint is https://api.blockvectra.com/v1/hyperevm_mainnet/public (3 requests per second per IP), while eth_getLogs requires an API key.

Can I try HyperEVM RPC without an API key?

Yes. Call eth_chainId at the public endpoints above without a key. Current methods and per-IP limits are listed in GET /v1/chains.

Does HyperEVM RPC support WebSocket?

HyperEVM RPC supports WebSocket connections. Supported subscription types: newHeads, logs.

Does HyperEVM RPC support trace and debug methods?

Trace and debug methods are not supported for HyperEVM RPC.

Can I broadcast transactions through HyperEVM RPC?

HyperEVM: Supported.

How much historical state can I query on HyperEVM?

HyperEVM: Unknown.

What is the eth_getLogs block-range limit for HyperEVM?

HyperEVM: 1,000 blocks, while eth_getLogs requires an API key.

Which Data API datasets are available on HyperEVM?

HyperEVM: Blocks, Transactions, Address Transactions, Transfers, Token Metadata, Data Freshness.

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 →