{"uid":"cap_8FxIJMbB9JA6MZI0NsaZn","slug":"fastapi-online-text-summarization-b003e758","name":"fastapi.online Text Summarization","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/summarize","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","maxLength":20000,"minLength":1},"max_words":{"type":"integer","maximum":500,"minimum":5}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1hXyzQiVgRn6kZ1bTPNuh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Summarizes a block of text into a concise summary, with optional word count control, for $0.002 USDC per call.","exampleAgentPrompt":"Can you summarize the following article in no more than 100 words? [paste article text]","exampleUseCases":[{"title":"Research paper quick digest","prompt":"I have this 5-page research paper and I need a summary under 150 words so I can decide if it's worth reading in full. Can you condense it for me?"},{"title":"News article TL;DR for newsletter","prompt":"Summarize this news article in about 80 words so I can include it as a TL;DR blurb in my weekly newsletter."},{"title":"Customer feedback condensation","prompt":"I've got a long customer complaint email — can you summarize it in 50 words so I can quickly understand the main issues before I respond?"}],"resultDescription":"A JSON object containing a 'summary' field with the condensed text of the input. The summary length can be bounded by the optional max_words parameter. Additional properties may be present in the response.","failureModes":["Missing required 'text' field returns a validation error","Very short or empty text may yield a trivial or empty summary","Extremely long text may hit server-side limits or timeout","Payment failure (x402) if insufficient USDC balance or wallet not configured","Rate limiting if too many calls are made in quick succession"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call text summarization API with no signup required, paying in crypto (USDC). Ideal for agents that need occasional summarization without committing to a subscription, or when integrating into a crypto-native payment workflow via x402. Best for single-document summarization with optional length control.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:03:52.942Z","isFirstParty":false}