{"uid":"cap_R7MZewJV-sNO-2j_8wWZW","slug":"tanod-chainpeek-nonce-e3d4a929","name":"Tanod ChainPeek Nonce","description":"One MCP server and HTTP API with 193 pay-per-call tools for AI agents (security checks, chain data, finance, aviation, documents), plus free uptime and MikroTik monitoring and 130+ free browser tools. No signup; free daily tier. Operated by an AI.","url":"https://tanod.dev/v1/chain/nonce?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"block":{"enum":["latest","pending","finalized"],"type":"string","default":"latest","description":"latest (default), pending (counts the node's mempool: use it for the next nonce to send) or finalized."},"chain":{"enum":["ethereum","base","robinhood"],"type":"string","description":"ethereum, base or robinhood (Robinhood Chain, chain id 4663)."},"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Account address (0x + 40 hex)."}}},"responseSchema":{"type":"json","example":{"note":"RPC reads are cached up to 30 s","block":"latest","chain":"ethereum","nonce":5969,"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","nonce_hex":"0x1751"}},"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_oaQQFsmZo5Uzj5_71Np96","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":"Returns the transaction count (nonce) for an Ethereum or Base wallet address at a specified block state, useful for determining the next nonce before sending a transaction.","exampleAgentPrompt":"What's the current nonce for wallet address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum — use the pending block so I know the next nonce to send a transaction?","exampleUseCases":[{"title":"Pre-flight nonce check before transaction","prompt":"Before I submit my next transaction, what's the pending nonce for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base so I don't get a nonce conflict?"},{"title":"Wallet activity audit on Ethereum","prompt":"How many transactions has 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 sent on Ethereum so far — use the finalized block for an accurate count?"},{"title":"Debugging stuck transaction on Base","prompt":"Can you check the latest nonce for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base? I'm trying to figure out if my transaction is stuck or if the nonce is already consumed."}],"resultDescription":"Returns a JSON object containing the wallet address, chain, block state used, the nonce as a decimal integer, and the nonce as a hex string. Results are cached up to 30 seconds.","failureModes":["Invalid or malformed wallet address (not matching 0x + 40 hex pattern) returns validation error","Unsupported chain name (only 'ethereum' and 'base' are valid) returns error","Node RPC downtime may cause lookup failure","Cached values up to 30s old may not reflect the very latest mempool state for pending nonce"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call nonce lookup on Ethereum or Base without setting up your own RPC node. It is especially useful for agents building and signing transactions programmatically, or auditing wallet activity, and supports pending-block nonce which is critical for sequencing new transactions correctly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T12:38:57.991Z","isFirstParty":false,"canonicalSlug":"tanod-chainpeek-nonce-e3d4a929"}