{"uid":"cap_5Rl2Ftnuz_crOdaNbKHjW","slug":"fastapi-online-t-shirt-design-generator-25b2f555","name":"fastapi.online T-Shirt Design 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/generate-tshirt-design","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"seed":{"type":"integer"},"theme":{"type":"string","maxLength":300,"minLength":1,"description":"the design theme"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.012","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":"$0.012/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.012","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.012","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dFmk0szZltNhximEv4ECY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.012","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a creative t-shirt design concept based on a theme and optional random seed","exampleAgentPrompt":"Generate a t-shirt design with a 'retro space exploration' theme using seed 42 so I can reproduce the same result later.","exampleUseCases":[{"title":"Event merch design generation","prompt":"I'm organizing a hiking club event called 'Summit Seekers' — can you generate a t-shirt design with that theme? Use seed 7 so I can regenerate it if needed."},{"title":"Online store product ideation","prompt":"I run an online apparel shop and need fresh ideas. Generate a t-shirt design with a 'cyberpunk street cat' theme for my next collection."},{"title":"Band merchandise concept","prompt":"I need a t-shirt design concept for my band, the theme is 'apocalyptic desert rock'. Use seed 99 so the design stays consistent across requests."}],"resultDescription":"Returns a generated t-shirt design concept — likely including a design description, visual concept, or rendered design artifact — based on the provided theme string and optional seed for reproducibility.","failureModes":["Theme string too long (exceeds 300 characters) — validation error","Theme string is empty or missing — 422 Unprocessable Entity","Payment not provided or insufficient — 402 Payment Required","Model inference timeout — 5xx error","Invalid seed type (non-integer) — validation error"],"whenToPreferThis":"Choose this endpoint when you need a quick, low-cost AI-generated t-shirt design concept without signup, billed per call via crypto. It's ideal for agents automating merchandise ideation, apparel store workflows, or creative brainstorming pipelines where reproducibility via seed is useful.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T17:26:04.904Z","isFirstParty":false}