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OneSource Ethereum Network Info (Chain ID + Block Height + Gas Price)
x402
OneSource Ethereum Network Info (Chain ID + Block Height + Gas Price) is a paid API for AI agents from api.onesource.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns the current Ethereum network state — chain ID, latest block number, and current gas price — in a single batched RPC call
Price / call$0.001
Success—
StatusUnknown
How this service works
EVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice + latest block header)
Output
Returns three key Ethereum network values in one response: the chain ID (e.g. 1 for mainnet), the latest block number, and the current gas price in wei — all fetched via a single batched JSON-RPC call so the values are consistent with each other.
Example use cases
Example prompt
“What's the current gas price, block height, and chain ID on Ethereum mainnet right now?”
Technical details
Endpoint
GEThttps://api.onesource.io/api/chain/network-infoWhen to prefer
Use this endpoint when you need Ethereum or Sepolia network state (gas price, block number, chain ID) together in one call, avoiding three separate RPC round-trips. Ideal for transaction preparation workflows where you need current gas price and nonce context simultaneously, or for monitoring Ethereum network conditions. Prefer over raw JSON-RPC when you want a REST interface with per-call micropayment billing instead of managing your own node or RPC provider subscription.
Side effects
- Invalid network value (not 'ethereum' or 'sepolia') returns a 400 error
- Upstream Ethereum node unavailability returns a 503 or timeout
- Payment not provided or insufficient USDC results in a 402 Payment Required response
- Rate limiting may occur under high request volume
Input
{
"network": "ethereum"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"data": {
"network": "ethereum",
"chain_id": "0x1",
"gas_price": "0x69eceba",
"net_version": "1",
"block_number": "0x181ec3b"
},
"meta": {
"endpoint": "/api/chain/network-info",
"request_id": "b7b6dd5c8d2f129d"
}
}Schema · Response
{
"type": "json",
"example": {
"data": {
"chain": {
"ens": true,
"layer": 1,
"stack": "ethereum",
"indexed": true,
"mempool": true,
"chain_id": 1,
"finality": "beacon",
"native_currency": "ETH",
"avg_block_time_ms": 12000
},
"stale": false,
"network": "ethereum",
"chain_id": "0x1",
"gas_price": "0x4a817c800",
"net_version": "1",
"block_number": "0x133da1e",
"head_timestamp": 1754240345,
"head_age_seconds": 9,
"stale_after_seconds": 1200
},
"meta": {
"endpoint": "/api/chain/network-info",
"cost_usdc": "0.001",
"request_id": "00000000abcdef01",
"payment_chain": "base",
"payment_token": "USDC"
}
}
}Tags
x402
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