{"uid":"cap_EEKFxpaj1aO1k73hsGwal","slug":"evm-nonce-lookup-ethereum-8de3a43a","name":"EVM Nonce Lookup — Ethereum","description":"EVM Nonce (ethereum). Ethereum account nonce: confirmed and pending transaction count for any address.","url":"https://saylorinnovations.com/api/evm/ethereum/nonce/:address?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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__6_lrMIHgGg5kyjMxuYr2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current on-chain transaction nonce for a given Ethereum address","exampleAgentPrompt":"What's the current on-chain nonce for Ethereum address 0xAbCd1234...5678? I need it before I broadcast my next transaction.","exampleUseCases":[{"title":"Pre-transaction nonce check","prompt":"Before I submit this Ethereum transaction, can you look up the current on-chain nonce for my wallet 0xAbCd1234567890AbCd1234567890AbCd12345678 so I know what to set in the tx?"},{"title":"Debugging stuck Ethereum transactions","prompt":"My transaction seems stuck — can you check the current nonce on Ethereum mainnet for address 0xDeAdBeEf1234567890DeAdBeEf1234567890DeAd so I can figure out if there's a nonce gap?"},{"title":"Monitoring wallet activity","prompt":"How many transactions has the Ethereum address 0x1234567890AbCdEf1234567890AbCdEf12345678 sent so far? I want to track if this wallet has been active."}],"resultDescription":"Returns the current nonce (transaction count) for the specified Ethereum address — a numeric value representing how many transactions have been confirmed from that address on Ethereum mainnet. This value is essential for constructing and sequencing new outbound transactions.","failureModes":["Invalid or malformed Ethereum address returns an error response","Address with no transactions returns nonce of 0","Network connectivity issues to Ethereum RPC may result in delayed or failed responses","Non-checksummed address formats may cause parsing errors"],"whenToPreferThis":"Use this endpoint when you need the current confirmed nonce for an Ethereum mainnet address specifically, particularly before constructing or signing a new transaction. Prefer this over generic RPC calls when you want a simple, pay-per-use REST API without managing your own Ethereum node. For Polygon or Arbitrum nonces, sibling endpoints on the same provider are available.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T00:48:34.615Z","isFirstParty":false,"canonicalSlug":"evm-nonce-lookup-ethereum-8de3a43a"}