{"uid":"cap_9I-NRly8VsbPWVgAZJtHa","slug":"farcaster-profile-fusion-api-2c018078","name":"Farcaster Profile Fusion API","description":"One-call Farcaster profile fusion. Give one of fid or username and get back the full profile (display name, bio, picture, url, location, socials), the primary Ethereum address, every verified on-chain wallet, the custody address, following and follower and cast counts, and the account age — the fused object that replaces four or five raw hub reads.","url":"https://api.agentstools.dev/farcaster/profile","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","required":[],"properties":{"fid":{"type":"integer","minimum":1,"description":"Farcaster ID (FID), a positive integer"},"username":{"type":"string","description":"Farcaster username (fname or ENS), without the at-sign"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/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_NKvnvx8Y4Ex_KKzlYVW8c","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":"Returns a complete fused Farcaster profile by FID or username, including identity, verified wallets, social stats, and account metadata in one call.","exampleAgentPrompt":"Pull the full Farcaster profile for username 'vitalik.eth' — I want their bio, profile picture, all verified wallet addresses, follower and following counts, and how old their account is.","exampleUseCases":null,"resultDescription":"A fused profile object containing: display name, bio, profile picture URL, profile URL, location, social links, primary Ethereum address, all verified on-chain wallet addresses, custody address, following count, follower count, cast count, and account age — all in a single response.","failureModes":["Neither fid nor username provided — returns error requiring at least one identifier","Unknown FID or username — returns 404 or empty result if user does not exist on Farcaster","Invalid FID format (non-integer or less than 1) — returns validation error","Payment not included or insufficient — returns 402 Payment Required","Rate limit exceeded — returns 429 Too Many Requests","Farcaster hub unavailable — may return 503 or partial data"],"whenToPreferThis":"Use this endpoint when you need a complete, fused Farcaster identity snapshot in one call rather than making four or five separate hub reads. Ideal when you need both social stats (followers, casts) and on-chain identity (verified wallets, custody address) together. Prefer this over raw Farcaster hub APIs when you want a normalized, ready-to-use object without assembling multiple responses.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:09:44.432Z","isFirstParty":false}