{"uid":"cap_gSfAH0VyYWDj8zSmR89Er","slug":"nexis-gas-audit-73e1f943","name":"Nexis Gas Audit","description":"Audit real gas spend across up to 20 Base mainnet transaction hashes you provide — total/average gas used, cost in ETH, per-tx breakdown. POST body required. Experimental/informational only — not financial advice.","url":"https://api.nexismvp.com/market/gas-audit","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"enum":["base"],"type":"string","description":"Only 'base' supported currently"},"tx_hashes":{"type":"array","items":{"type":"string"},"maxItems":20,"description":"Up to 20 transaction hashes to audit"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_JQDUjydekDemZszB9Baib","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Audits real gas spend across up to 20 Base mainnet transaction hashes, returning total/average gas used, cost in ETH, and a per-transaction breakdown.","exampleAgentPrompt":"Can you audit the gas costs for these 5 Base mainnet transactions and tell me the total ETH spent, average gas used, and a breakdown per tx? Here are the hashes: 0xabc123..., 0xdef456..., 0x789ghi..., 0xjkl012..., 0xmno345...","exampleUseCases":[{"title":"Post-deployment gas cost review","prompt":"I just deployed a contract and ran a few test transactions on Base — can you audit the gas spend across these 8 tx hashes and tell me total ETH used and the per-transaction breakdown? Hashes: 0xaaa111..., 0xbbb222..., 0xccc333..., 0xddd444..., 0xeee555..., 0xfff666..., 0xggg777..., 0xhhh888..."},{"title":"DeFi bot gas efficiency check","prompt":"My trading bot submitted 15 transactions on Base yesterday — can you pull the real gas costs for each of these tx hashes and give me the total and average gas used so I can see if it's efficient? Here are the hashes: [0x001..., 0x002..., ..., 0x015...]"},{"title":"Team gas expense report","prompt":"We need to expense the on-chain gas costs for a batch of 10 Base mainnet transactions from last week — can you audit these tx hashes and give me the total ETH cost and a per-transaction breakdown I can put in a report? Hashes: 0xta1..., 0xtb2..., 0xtc3..., 0xtd4..., 0xte5..., 0xtf6..., 0xtg7..., 0xth8..., 0xti9..., 0xtj10..."}],"resultDescription":"Returns a structured breakdown including total gas used across all submitted transactions, average gas used per transaction, total cost in ETH, and a per-transaction array showing each tx hash alongside its individual gas used and ETH cost.","failureModes":["Invalid or malformed transaction hashes return an error","Transactions not found on Base mainnet (e.g. wrong network) return not-found errors","Exceeding the 20-transaction limit per request returns a validation error","RPC connectivity issues may cause timeouts or partial results","Non-Base-mainnet tx hashes (e.g. Ethereum mainnet) will fail or return incorrect data"],"whenToPreferThis":"Use this endpoint when you need to retrospectively audit actual on-chain gas costs for a known set of Base mainnet transactions — particularly useful for expense reporting, bot efficiency analysis, or post-deployment cost reviews. Prefer this over gas price estimators when you need real confirmed spend rather than predictions. Best suited for batches of 2–20 transactions where per-tx breakdown is needed alongside aggregates.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T04:26:52.528Z","isFirstParty":false}