{"uid":"cap_HJi6uZ9i-G0RN5KFI4kvk","slug":"fastapi-online-image-collage-generator-0bb1435c","name":"fastapi.online — Image Collage Generator","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-collage","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"files":{"type":"array","items":{"type":"string","format":"binary"},"description":"2 or more image files"},"columns":{"type":"string"},"tile_size":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0015","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":"$0.0015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_87C2s-hmN3DIFGhIJnwXU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Combines 2 or more uploaded images into a single collage with configurable column count and tile size","exampleAgentPrompt":"Can you combine these 4 product photos into a collage with 2 columns and a tile size of 300?","exampleUseCases":[{"title":"Product photo grid for listing","prompt":"I have 6 product shots I want to combine into a 3-column grid collage — can you stitch them together with a tile size of 400?"},{"title":"Before-and-after comparison layout","prompt":"Take these 2 images and combine them side by side into a single collage with 2 columns so I can compare them easily."},{"title":"Social media mood board","prompt":"I've got 9 photos I want to arrange into a 3-column collage for an Instagram post — please combine them with a tile size of 250."}],"resultDescription":"A single composed image file containing all input images arranged in a grid layout according to the specified column count and tile size.","failureModes":["Fewer than 2 images provided — requires at least 2 files","Unsupported image format or corrupt binary data — processing error returned","Invalid or non-numeric columns/tile_size values — parameter error","Payment not included or insufficient — 402 Payment Required","Images too large or too many files — potential timeout or memory error"],"whenToPreferThis":"Choose this endpoint when you need a straightforward, pay-per-call image collage assembled server-side without signup. Ideal for agents that need to combine a small set of images into a grid on the fly, especially when crypto micropayment (x402/USDC) is already part of the workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:16:45.420Z","isFirstParty":false}