{"uid":"cap_CI8wALzrdljKtrKJLjFMh","slug":"fastapi-online-api-code-generator-2b5f7a52","name":"fastapi.online — API Code 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-api?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"framework":{"type":"string","maxLength":300,"description":"target framework (default Express)"},"description":{"type":"string","maxLength":2000,"minLength":2,"description":"what the API should do"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.006","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":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Upqa-VTjg-fzTC0xXLnhh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates boilerplate API code for a specified framework based on a natural-language description of what the API should do","exampleAgentPrompt":"Generate me a boilerplate Express API that handles user login and JWT authentication — just give me the starter code I can drop into my project.","exampleUseCases":[{"title":"Scaffold a REST API for a todo app","prompt":"Can you generate me an Express API scaffold that supports creating, reading, updating, and deleting todos — I need the full starter code ready to run."},{"title":"Build a FastAPI ML serving endpoint","prompt":"Generate boilerplate FastAPI code for an API that accepts an image URL and returns a classification label from a machine learning model."},{"title":"Create a webhook handler in Koa","prompt":"Write me a Koa framework API that listens for incoming webhook events, validates a secret header, and logs the payload — I need the full starter code."}],"resultDescription":"Returns generated API source code (boilerplate/scaffold) tailored to the specified framework and description, ready to be used as a starting point for development.","failureModes":["Description too vague or missing — returns generic or empty output","Unsupported or misspelled framework name — may default to Express or produce incorrect code","Description exceeds 2000 character limit — request rejected","Payment not completed via x402 protocol — 402 response returned","Server-side model error — may return 500 with no code generated"],"whenToPreferThis":"Choose this endpoint when you need quick, no-signup API scaffolding code generated on demand and paid per-call with USDC crypto — ideal for agents automating developer workflows without committing to a subscription service. Prefer this over general-purpose LLM APIs when you want a specialized, cost-controlled code generation call billed at a flat $0.006 per request.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T15:25:36.085Z","isFirstParty":false,"canonicalSlug":"fastapi-online-api-code-generator-2b5f7a52"}