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fastapi.online Text Summarization
x402
fastapi.online Text Summarization is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Summarizes a block of text into a concise summary, with optional word count control, for $0.002 USDC per call.
Price / call$0.002
Success—
StatusUnknown
How this service works
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.
Output
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.
Example use cases
Research paper quick digest
“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?”
News article TL;DR for newsletter
“Summarize this news article in about 80 words so I can include it as a TL;DR blurb in my weekly newsletter.”
Customer feedback condensation
“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?”
Technical details
Endpoint
POSThttps://api.fastapi.online/summarizeWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | |
| max_words | integer |
Tags
x402
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