{"uid":"cap_cFebauWK69nw8m1PffuMh","slug":"evm-chain-block-info-congestion-rating-fe1542ea","name":"EVM Chain Block Info & Congestion Rating","description":"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.","url":"https://api.x402node.dev/chain/block-info","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"chain":{"type":"string","description":"ethereum, base (default), arbitrum, optimism, polygon, bsc, avalanche"}}}},"additionalProperties":false}}},"responseSchema":null,"example":{"request":{"chain":"ethereum"},"response":{"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}},"exampleRequest":{"chain":"ethereum"},"tags":["x402"],"displayCostAmount":"0.004","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qBFW5EXz8d2JNzsZMINm5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"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.","exampleAgentPrompt":"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?","exampleUseCases":null,"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:52:49.252Z","isFirstParty":false}