{"uid":"cap_p8BiXwS0C_AXpLeKASASj","slug":"evm-nonce-lookup-base-network-02bc9a62","name":"EVM Nonce Lookup — Base Network","description":"EVM Nonce (base). Base account nonce for any address: confirmed nonce and pending nonce (a gap means transactions are still waiting in the mempool). Use it before sending a transaction or to detect a pending one.","url":"https://saylorinnovations.com/api/evm/base/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_nQR7P6H9bMZQTgZZ47MnL","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 on the Base blockchain network","exampleAgentPrompt":"What's the current on-chain nonce for the address 0x1234...abcd on Base? I need it before I broadcast my next transaction.","exampleUseCases":[{"title":"Pre-transaction nonce check","prompt":"Before I sign and send my next transaction on Base, can you look up the current nonce for my wallet address 0xAbCd1234...5678 so I don't get a nonce conflict?"},{"title":"Stuck transaction diagnosis","prompt":"My transaction on Base seems stuck — can you fetch the on-chain nonce for 0xDeAd...BeeF to see if there's a nonce gap causing the problem?"},{"title":"Wallet activity verification","prompt":"Can you check the nonce for address 0x9999...AAAA on Base to confirm how many transactions it has actually sent on-chain?"}],"resultDescription":"Returns the current transaction nonce (integer) for the specified EVM address on the Base network, representing the number of transactions confirmed on-chain from that address","failureModes":["Invalid or malformed Ethereum address returns an error","Address that has never transacted may return nonce of 0","Network connectivity issues to Base RPC may cause timeouts","Non-checksummed addresses may be rejected depending on implementation"],"whenToPreferThis":"Use this endpoint when you need the on-chain nonce for a specific EVM address on the Base network specifically — for example, when constructing or debugging transactions on Base, verifying wallet activity, or detecting nonce gaps. Prefer this over generic RPC calls when you need a simple, pay-per-use REST API without managing your own RPC node.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T18:31:42.841Z","isFirstParty":false,"canonicalSlug":"evm-nonce-lookup-base-network-02bc9a62"}