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Sentiment Analyzer by PDFExtractAPI
x402
Sentiment Analyzer by PDFExtractAPI is a paid API for AI agents from sentiment-analyzer.pdfextractapi.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Analyzes text to return sentiment classification, numeric score, confidence level, and detected emotions.
Price / call$0.01
Success—
StatusUnknown
How this service works
Analyze the sentiment of text: classification, score, confidence, and detected emotions.
Output
Returns a sentiment classification (e.g. positive, negative, neutral), a numeric sentiment score, a confidence value indicating certainty of the classification, and a list of detected emotions present in the text.
Example use cases
Customer review sentiment scoring
“Classify this product review as positive, negative, or neutral, give me a confidence score, and tell me what emotions are detected: 'I've been using this blender for three months and it's already broken — completely disappointed.'”
Social media post tone monitoring
“What's the sentiment and emotional tone of this tweet? 'Just got the new firmware update and wow, the app is buttery smooth now — loving it! 🙌' I need the classification, score, and confidence level.”
Support ticket triage by emotion
“Analyze the sentiment and emotions in this support message so I can prioritize it: 'I've contacted you four times already and nothing has been fixed. I'm furious and about to cancel my subscription.'”
Technical details
Endpoint
POSThttps://sentiment-analyzer.pdfextractapi.workers.dev/analyzeWhen to prefer
Choose this endpoint when you need a combined sentiment classification, numeric score, confidence measure, AND emotion detection in a single call. It is well-suited for processing individual text snippets up to 20,000 characters via a pay-per-call model ($0.01 USDC), making it ideal for low-volume or on-demand sentiment analysis without a subscription commitment.
Side effects
- Text exceeds 20,000 character limit — request rejected or truncated
- Empty or missing 'text' field — validation error returned
- Non-UTF8 or malformed body — parse error
- Payment failure or insufficient USDC balance — x402 payment required error
- Service unavailable on Cloudflare Workers edge — 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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