{"uid":"cap_EFMIX8DKSABJMSwVF6GBY","slug":"farcaster-intel-api-user-profile-lookup-2bddbff4","name":"Farcaster Intel API - User Profile Lookup","description":"Structured Farcaster intelligence for AI agents. Pay per query in USDC on Base via x402.","url":"https://farcaster-intel-api.vercel.app/api/user?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["username"],"properties":{"username":{"type":"string","description":"Farcaster username without the @ symbol"}}},"responseSchema":{"type":"object","properties":{"bio":{"type":"string"},"fid":{"type":"integer","description":"Farcaster ID"},"summary":{"type":"string","description":"One-line agent-readable summary"},"username":{"type":"string"},"interests":{"type":"array","items":{"type":"string"},"description":"Inferred topic tags from recent casts"},"power_badge":{"type":"boolean"},"display_name":{"type":"string"},"top_channels":{"type":"array","items":{"type":"string"},"description":"Up to 3 channel IDs user recently cast in"},"follower_count":{"type":"integer"},"account_quality":{"type":"integer","description":"Composite quality score 0-100"},"engagement_rate":{"type":"number","description":"Avg reactions+replies per cast (last 5 casts)"},"following_count":{"type":"integer"},"reputation_label":{"enum":["high","medium","low","spam"],"type":"string"},"reputation_score":{"type":"number","description":"Neynar reputation score 0-1.0"},"verified_addresses":{"type":"array","items":{"type":"string"},"description":"Verified Ethereum wallet addresses"},"active_on_farcaster":{"type":"boolean"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_U5zLzWxWZMq2eZwEcZ4A_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches structured intelligence about a Farcaster user including reputation score, interests, verified addresses, and engagement metrics","exampleAgentPrompt":"Can you pull up Farcaster intelligence on the user 'dwr' — I want to know their reputation score, interests, verified wallet addresses, and whether they're considered a high-quality account?","exampleUseCases":null,"resultDescription":"Returns a structured JSON object with the user's Farcaster ID, bio, display name, follower/following counts, engagement rate, inferred interest tags, top channels, verified Ethereum addresses, power badge status, activity status, a composite account quality score (0-100), a Neynar reputation score (0-1), a reputation label (high/medium/low/spam), and a one-line agent-readable summary.","failureModes":["Username not found — returns 404 or empty result if the Farcaster username does not exist","Missing username parameter — returns 400 bad request if 'username' is not provided","Payment failure — x402 payment in USDC on Base not processed, returns 402 Payment Required","Rate limiting — too many requests may result in throttling","Stale data — profile data may lag behind real-time Farcaster state if caching is in place"],"whenToPreferThis":"Use this endpoint when you need structured, agent-optimized Farcaster user intelligence in a single call, especially when you need reputation scoring, inferred interests, or verified wallet address resolution. Prefer this over raw Farcaster/Neynar APIs when you want pre-processed, normalized output designed for AI agent consumption with pay-per-query pricing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:36:51.154Z","isFirstParty":false,"canonicalSlug":"farcaster-intel-api-user-profile-lookup-2bddbff4"}