{"uid":"cap_A-YVRKABoqsMnG_oboEyI","slug":"pennyrail-chain-info-lookup-b73a1753","name":"PennyRail Chain Info Lookup","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/chain.info--proven-chain-info?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"string"}}},"responseSchema":{"type":"object","additionalProperties":true},"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":"down","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_cPKGpeoVJeBxLdqWpgwrn","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":"Retrieves proven chain information for a given nano-chain node via a machine-readable settlement service","exampleAgentPrompt":"Can you fetch the proven chain info for nano chain node 'xrb_3t6k35gi95xu6tergt6p69ck76ogmitsa8mnijtpxm9fkcm736xtoncuohr' from PennyRail?","exampleUseCases":[{"title":"Verify nano chain block state","prompt":"I need to check the current proven chain info for nano address xrb_1ipx847tk8o46pwxt5qjdbncjqcbwcc1rrmqnkztrfjy5k7z4imsrata9est — can you pull that from PennyRail?"},{"title":"Monitor settlement chain status","prompt":"Pull the chain info for my nano settlement node 'nano_3xyz123' from PennyRail so I can confirm it's in sync before processing the next batch of payments."},{"title":"Debug nano chain resolution","prompt":"Something looks off with the chain state for nano_1abc456def — can you query PennyRail for the proven chain info and tell me what it returns?"}],"resultDescription":"Returns a JSON object containing proven chain information for the queried nano chain node, including block state, chain metadata, and settlement-relevant chain details. The response schema is open-ended and may include fields such as block count, frontier hash, representative, balance, and chain proof status.","failureModes":["Invalid or malformed chain identifier input returns an error or empty result","Payment of $0.001 USDC not provided or rejected results in HTTP 402 before processing","Unknown chain ID returns empty or null chain info","Network or upstream nano node unavailability causes timeout or 503","Malformed input string that doesn't correspond to a valid nano address or chain reference"],"whenToPreferThis":"Use this endpoint when you need machine-readable, programmatically accessible nano chain state or proven chain information and are operating in a pay-per-call x402 settlement context. Prefer this over manual node queries when you need a simple REST interface to nano chain data without running your own node infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T17:25:09.085Z","isFirstParty":false,"canonicalSlug":"pennyrail-chain-info-lookup-b73a1753"}