{"uid":"cap_Txb9kpFUp2aVhfwrNzd-C","slug":"simple-x-api-x-user-lookup-by-username-4ee4bc07","name":"simple-x-api X User Lookup by Username","description":"Proxy the corresponding X API v2 endpoint. x402 authorizes up to $10.00; successful responses settle at X's public non-owned per-resource/per-action price.","url":"https://simple-x-api.com/api/2/users/by/username/rsproule?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"10","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":"$10/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WzdfNc5e40v8j8b6TgMQc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"10","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up an X (Twitter) user's public profile data by their username via a proxied X API v2 endpoint, settled via x402 micropayment","exampleAgentPrompt":"Can you look up the X profile for the username 'rsproule' and tell me their user ID and display name?","exampleUseCases":null,"resultDescription":"Returns the X API v2 user object for the specified username, including user ID, name, username, and other public profile fields as defined by the X API v2 users endpoint. Payment is settled at X's public per-resource price (up to $10.00 USDC).","failureModes":["Username not found — X API returns 404 or empty result","Username suspended or deactivated — X API returns appropriate error","Payment authorization failure — x402 payment up to $10.00 not authorized","Rate limiting by X API — upstream throttling returns 429","Network or proxy error from simple-x-api.com — upstream connectivity issue"],"whenToPreferThis":"Use this endpoint when you need to resolve a specific X (Twitter) username to their full user profile object (including user ID) and are comfortable with micropayment-per-call via x402. Prefer this over scraping or unofficial APIs when you need reliable, structured X API v2 data without managing your own X API credentials.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T06:33:54.732Z","isFirstParty":false,"canonicalSlug":"simple-x-api-x-user-lookup-by-username-4ee4bc07"}