{"uid":"cap_IYWwJdnM4FK-wQxWoxAp6","slug":"base-next-transaction-nonce-ead995e8","name":"Base Next Transaction Nonce","description":"Free Base nonce sample for the service receiver. The paid $0.0026 API returns the exact next transaction nonce from one bounded read-only RPC call.","url":"https://appearing-clinics-show-wrote.trycloudflare.com/base-nonce-sample","method":"GET","headers":{},"bodySchema":{"type":"object","$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","required":[],"properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"unprobed","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"unknown","summary":"price unknown","primary":{"kind":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"},"accepted":[{"kind":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"}]},"paymentMethods":[{"uid":"pm_9WmdTSPXJt4n0RoNPSqrK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the exact next transaction nonce for a Base network address from a single bounded read-only RPC call.","exampleAgentPrompt":"What's the next transaction nonce I should use for my Base wallet right now? I need the exact value before I sign and send my next transaction.","exampleUseCases":[{"title":"Pre-sign nonce check for Base transaction","prompt":"Before I broadcast this Base transaction, what's the current next nonce for my wallet so I can include the right sequence number in the signed payload?"},{"title":"Detect pending transactions on Base account","prompt":"Check the next nonce for my Base address and compare it to what the local wallet thinks — I want to know if there are any pending transactions already in the mempool."},{"title":"Automated nonce management in DeFi bot","prompt":"My trading bot is about to send a transaction on Base — fetch the live next nonce for the sender address so it doesn't collide with any in-flight transactions."}],"resultDescription":"Returns the exact integer nonce value representing the next valid transaction sequence number for the queried Base network address, derived from a single bounded read-only RPC call.","failureModes":["Invalid or malformed Ethereum address returns an error","RPC node unavailable or rate-limited causes a failed response","Network timeout if Base RPC endpoint is unreachable","Free sample endpoint may return a fixed demo nonce rather than a live address-specific nonce"],"whenToPreferThis":"Choose this endpoint when you need a fast, precise next-nonce value for Base network transactions with minimal RPC overhead. Ideal for transaction signing pipelines, DeFi bots, or any agent that must avoid nonce collisions on Base. Prefer over self-hosted RPC when you want a paid, bounded, reliable single-call guarantee rather than managing your own node infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T21:26:42.101Z","isFirstParty":false}