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Agent Exchange — Latest Block Data
x402
Agent Exchange — Latest Block Data is a paid API for AI agents from store.agentexchange.work, paid per call via x402, $0.09/call, status unknown (last checked 2026-10-12).
Returns live block metadata for a given EVM chain, including block number, timestamp, gas utilization, base fee, transaction count, and congestion status.
Price / call$0.09
Success—
StatusUnknown
How this service works
Live data APIs for AI agents and analysts. Buy an all-access API key for $29/month with a credit card, or pay per call in USDC. No sales call.
Output
Returns a JSON object with: chain name, block number, unix timestamp, age in seconds since block was produced, transaction count, gas used, gas limit, utilization ratio (0–1), base fee in gwei, and a boolean congestion flag.
Example use cases
Gas price check before sending transaction
“Before I submit this transaction, can you check the current base fee and congestion status on Ethereum so I know if it's a good time to send?”
Real-time chain monitoring dashboard
“Pull the latest block data from Base every minute and alert me if utilization goes above 80% or the network becomes congested.”
Historical block inspection for debugging
“I need the details for block 49464704 on Base — transaction count, gas used, utilization, and timestamp — to debug a timing issue in my app.”
Technical details
Endpoint
GEThttps://store.agentexchange.work/chain/block?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single, parsed, human-readable block summary — including congestion, gas fee, and utilization — without writing raw eth_getBlockByNumber RPC calls or parsing raw hex responses. It is ideal for agents that need to make gas-aware decisions, monitor chain health, or display chain state to users, especially across multiple EVM networks from a single API. Prefer this over raw RPC endpoints when you want normalized gwei values and a congestion flag pre-computed.
Side effects
- Invalid chain name returns an error — must be one of base, ethereum, optimism, arbitrum, polygon, gnosis
- Block number out of range or not yet finalized returns an error
- Payment failure (insufficient USDC or missing x402 header) returns HTTP 402
- Rate limiting or upstream RPC unavailability may return 5xx errors
- Passing a non-numeric, non-hex, non-tag string as block number will fail validation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"gas_used": 5300000,
"tx_count": 191,
"congested": false,
"gas_limit": 150000000,
"timestamp": 1785718000,
"age_seconds": 4,
"utilization": 0.0353,
"block_number": 49464704,
"base_fee_gwei": 0.005
}
}Tags
x402
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