{"uid":"cap_NYFTd4S3GyRsgWMJ9rlgF","slug":"vextorium-nostr-profile-lookup-d77cdf25","name":"Vextorium Nostr Profile Lookup","description":"Nostr profile by npub, hex key or NIP-05 identifier (name@domain): name, bio, picture, website, NIP-05, Lightning address and latest public notes, queried from several public relays.","url":"https://api.vextorium.com/nostr-perfil-pago?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"notas":{"type":"integer"},"usuario":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tuNXbCWYNdgLOHWJrpkP6","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a Nostr user's profile (name, bio, picture, website, NIP-05, Lightning address) and latest public notes by querying multiple public relays, given an npub, hex key, or NIP-05 identifier.","exampleAgentPrompt":"Can you look up the Nostr profile for npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f8lc2uqvspu3wwf and give me their name, bio, Lightning address, and their 5 most recent notes?","exampleUseCases":[{"title":"Verify Nostr identity before tipping","prompt":"Before I send a Lightning tip, can you pull up the Nostr profile for jack@cash.app and confirm their Lightning address and NIP-05 verification?"},{"title":"Research a Nostr creator's recent posts","prompt":"I want to follow up with a Nostr developer — can you fetch the profile and last 10 public notes for npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufvsadjeas?"},{"title":"Resolve a NIP-05 handle to full profile","prompt":"What's the full Nostr profile for the user identified as semisol@semisol.dev — I need their display name, bio, website, and profile picture URL."}],"resultDescription":"Returns a JSON object with the user's Nostr display name, bio/description, profile picture URL, website, NIP-05 address, hex public key, Lightning address, list of relays queried, profile last-updated timestamp, and an array of recent public notes each containing note ID, timestamp, and text content.","failureModes":["Unknown or invalid npub/hex/NIP-05 returns null profile fields","NIP-05 domain DNS failure or server unavailability causes resolution error","No relays return data for an obscure or new account","Malformed input (invalid bech32 or hex) causes a validation error","Rate limiting or relay unavailability may return incomplete notes"],"whenToPreferThis":"Use this endpoint when you need to resolve a Nostr identity (npub, hex, or NIP-05) into human-readable profile metadata and recent activity, especially when you also need the associated Lightning address. It aggregates across multiple public relays for higher reliability than querying a single relay directly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T18:56:07.884Z","isFirstParty":false,"canonicalSlug":"vextorium-nostr-profile-lookup-d77cdf25"}