{"uid":"cap_-U4zxgICBL0C_9smsoJF9","slug":"fastapi-online-image-generation-be710ab4","name":"fastapi.online Image Generation","description":"Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.","url":"https://api.fastapi.online/image?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"seed":{"type":"integer"},"steps":{"type":"integer","maximum":30,"minimum":1},"width":{"enum":[512,768],"type":"integer"},"height":{"enum":[512,768],"type":"integer"},"prompt":{"type":"string","maxLength":1000,"minLength":1},"negative_prompt":{"type":"string","maxLength":1000}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-MJtkGpHCLd0F3FDDHlA2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates images from text prompts via a self-hosted AI inference endpoint, billed at $0.02 USDC per call with no signup required","exampleAgentPrompt":"Generate an image of a serene mountain lake at sunset with pine trees reflecting in the still water — pay with USDC and no signup needed.","exampleUseCases":[{"title":"Quick AI art for a blog post","prompt":"Create an image of a futuristic city skyline at night with neon lights and flying cars for my sci-fi article — I want to pay per call without setting up an account."},{"title":"Product mockup image generation","prompt":"Generate a clean product photo of a minimalist white coffee mug on a wooden table with soft natural lighting — I need it for a marketing mockup and want to pay with crypto."},{"title":"Social media visual creation","prompt":"Make an image of a golden retriever puppy playing in autumn leaves in a park, bright and cheerful style, for a social media post."}],"resultDescription":"Returns a generated image (as binary data or a URL) produced by the self-hosted AI image generation model based on the provided text prompt, charged at $0.02 USDC per call via x402 payment protocol.","failureModes":["402 Payment Required if USDC payment is not attached or insufficient","Invalid or missing prompt results in a 400 Bad Request","Model inference timeout for complex prompts","Rate limiting or server overload returning 503","Malformed payment header causing payment rejection"],"whenToPreferThis":"Choose this endpoint when you need image generation with no signup or subscription, want to pay per call using USDC cryptocurrency, or are building an agent that requires frictionless, pay-as-you-go image synthesis without API key management overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T23:28:15.181Z","isFirstParty":false,"canonicalSlug":"fastapi-online-image-generation-be710ab4"}