{"uid":"cap_H5ppu9h0uI8fQ4fY_yrtg","slug":"fastapi-online-text-translation-4bcc821d","name":"fastapi.online Text Translation","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/translate","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","maxLength":8000,"minLength":1},"source_lang":{"type":"string","maxLength":40},"target_lang":{"type":"string","maxLength":40,"minLength":2}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_CrQQ4SMi2h9eFHFs0Riyn","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Translates text from one language to another, with optional source language specification and auto-detection","exampleAgentPrompt":"Translate this text into French: 'The new product launch exceeded our expectations and customer feedback has been overwhelmingly positive.'","exampleUseCases":[{"title":"Customer support message localization","prompt":"I got a support ticket in what looks like Italian — can you translate it to English for me? The message says: 'Il mio ordine non è arrivato dopo due settimane, ho bisogno di aiuto.'"},{"title":"Multilingual product listing creation","prompt":"Translate this product description into Spanish for our Latin American storefront: 'Lightweight wireless earbuds with 30-hour battery life and active noise cancellation.'"},{"title":"International user feedback translation","prompt":"We have a batch of user reviews in Japanese that I need in English so our team can read them — start with this one: '使い勝手が非常に良く、デザインも洗練されています。'"}],"resultDescription":"Returns a JSON object containing the translated text in the target language, the target language code, and the detected or specified source language code (which may be null if not detected).","failureModes":["Missing required 'text' or 'target_lang' field returns a 422 validation error","Unsupported language code returns an error or poor-quality translation","Very long text inputs may be truncated or rejected","Payment failure (402) if USDC balance is insufficient","Network timeout for unusually large translation requests","Ambiguous or mixed-language input may produce inaccurate source language detection"],"whenToPreferThis":"Choose this endpoint when you need a pay-per-call translation API with no signup required and crypto payment support via x402. It is well-suited for agents that need on-demand translation without committing to a subscription, or when integrating translation into automated pipelines that pay per use. The free-tier API key option also makes it easy to prototype without any payment setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T10:25:51.053Z","isFirstParty":false}