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EVM Chain Block Info & Congestion Rating
x402
EVM Chain Block Info & Congestion Rating is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-13).
Returns the latest block data for 7 EVM chains including gas utilization, a congestion rating (low/moderate/high), and block age to help agents assess chain liveness and network busyness before submitting a transaction.
Price / call$0.004
Success—
StatusUnknown
How this service works
Latest block on 7 EVM chains with gas utilization and a congestion rating (low/moderate/high) plus block age - lets agents check chain liveness and whether the network is busy before submitting a transaction, real-time data. block info, latest block, chain congestion, network busy, block height, gas utilization Accepts payment on Base or Solana — either network works.
Output
Returns the latest block number, timestamp, block age, transaction count, gas utilization percentage, and a human-readable congestion rating (low/moderate/high) for up to 7 EVM chains, enabling pre-flight network checks before transaction submission.
Example use cases
Example prompt
“Before I send this transaction, can you check how congested Ethereum mainnet is right now — give me the latest block info, gas utilization, and whether the network is low, moderate, or high congestion?”
Technical details
Endpoint
GEThttps://api.x402node.dev/chain/block-infoWhen to prefer
Use this endpoint when an AI agent needs to check EVM chain health, gas congestion, or block liveness before deciding whether to submit a transaction or advise a user on timing. Prefer this over generic block explorers when you need a structured, machine-readable congestion rating across multiple chains in a single call.
Side effects
- Unsupported chain identifier returns a 400 or 404 error
- Node data may lag briefly behind true chain head, causing slight staleness in block age
- Payment failure (402) if USDC balance is insufficient
- Network timeout if the underlying node RPC is slow or unreachable
Input
{
"chain": "ethereum"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"note": "Latest block info: number, age, gas utilization and congestion level. Agents use to check chain liveness, congestion (gasUsedPct high = network busy) and timing before submitting txs.",
"_hint": "x402 paid endpoints for AI agents — x402node.dev (utilities) · cn402.com (Chinese culture)",
"chain": "ethereum",
"ageSec": 9,
"source": "rpc",
"txCount": 857,
"timestamp": 1781732351,
"congestion": "moderate",
"gasUsedPct": 80.2,
"baseFeeGwei": 0.1156,
"blockNumber": 25340014
}Tags
x402
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