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Agent402 Chain Info
x402
Agent402 Chain Info is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Returns current blockchain network stats (chain ID, gas price, latest block) for a specified EVM-compatible network, defaulting to Base.
Price / call$0.001
Success—
StatusUnknown
How this service works
One-call chain state snapshot: chain id, latest block number, and current gas price (wei + gwei) for Ethereum, Base, Polygon, Arbitrum, or Optimism. Keyless multi-endpoint failover. ?network=base
Output
A JSON object containing the numeric chain ID, human-readable network name, gas price in Wei, gas price in Gwei, and the latest block number for the requested EVM network.
Example use cases
Pre-transaction gas check on Base
“Before I submit this transaction, can you check what the current gas price is on Base so I know if it's a good time to send?”
Monitor Ethereum block height
“What's the latest block number on Ethereum mainnet right now, and what's the gas price in Gwei?”
Compare chain IDs across networks
“I need the chain ID and current gas price for both Arbitrum and Optimism — can you pull those network stats for me?”
Technical details
Endpoint
GEThttps://agent402.tools/api/chain-infoWhen to prefer
Choose this endpoint when you need real-time, on-chain network stats (gas price, block height, chain ID) for Base or other major EVM networks in a pay-per-call model with no API key or signup required. Prefer over alternatives when operating in a wallet-native or x402 payment context, or when you need lightweight lookups without a full Web3 provider setup.
Side effects
- Unsupported network name returns an error or defaults to Base
- Network congestion or RPC issues may cause stale block data
- Invalid 'network' query parameter value results in a 400 or default fallback
- Payment failure (insufficient USDC/proof-of-work) results in a 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chainId": 8453,
"network": "base",
"gasPriceWei": "5000000",
"latestBlock": 27000000,
"gasPriceGwei": "0.005"
}
}Tags
x402
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