{"uid":"cap_koDxOLirPq7EA8YSYBs2-","slug":"robinhood-chain-account-nonce-lookup-a3089a2e","name":"Robinhood Chain Account Nonce Lookup","description":"Robinhood Chain account nonce (latest + pending) for building transactions. Send { address }.","url":"https://x402-services-production.up.railway.app/api/rhchain/nonce","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json"],"type":"string"}}}}},"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_TFV1kn6C1dMM4NRsyoRxJ","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":"Fetches the latest and pending transaction nonce for a Robinhood Chain (rhchain) address, enabling correct transaction construction.","exampleAgentPrompt":"What's the current nonce — both latest confirmed and pending — for address 0xAbC123... on Robinhood Chain so I can build my next transaction?","exampleUseCases":[{"title":"Pre-transaction nonce check","prompt":"Before I submit a transaction on Robinhood Chain, fetch the latest and pending nonce for wallet 0x1234567890abcdef1234567890abcdef12345678 so I know what sequence number to use."},{"title":"Preventing transaction replay or stuck tx","prompt":"I have a stuck pending transaction on Robinhood Chain for address 0xDeAdBeEf0000000000000000000000000000dEaD — can you pull the current pending nonce so I can figure out how to replace it?"},{"title":"Multi-step agent transaction sequencing","prompt":"My agent is about to send three consecutive transactions from 0xaBcD1234000000000000000000000000000AbCd on Robinhood Chain — get the current nonce so I can correctly increment it across all three."}],"resultDescription":"Returns the current latest (confirmed) nonce and pending nonce for the specified Robinhood Chain address, giving the caller the exact sequence number needed to construct a valid next transaction without collision.","failureModes":["Invalid or malformed Ethereum address returns an error response","Address not found on Robinhood Chain may return zero nonce or an error","Network or RPC connectivity issues may cause timeouts","Missing required 'address' field in request body returns a validation error"],"whenToPreferThis":"Use this endpoint when building or signing transactions specifically on Robinhood Chain (rhchain) and you need an accurate, up-to-date nonce that accounts for both confirmed and pending transactions. Prefer this over generic EVM nonce lookups when targeting rhchain specifically, as it is purpose-built for that network.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:59:01.158Z","isFirstParty":false}