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x402node AFINN Sentiment Scorer
x402
x402node AFINN Sentiment Scorer is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Scores the sentiment of a text string using lexicon-based (AFINN-style) analysis, returning a raw score, normalized score, label, and positive/negative word hits.
Price / call$0.005
Success—
StatusUnknown
How this service works
Lexicon-based sentiment scoring (AFINN-style). Returns raw score, length-normalized score, label (positive/neutral/negative), positive/negative word hits. Use ?text=This+product+is+amazing. Built for AI agents doing review analysis, social monitoring, and feedback triage. Accepts payment on Base or Solana — either network works.
Output
Returns a raw AFINN-style sentiment score, a length-normalized score, a categorical label (positive/neutral/negative), and lists of positive and negative word hits found in the input text.
Example use cases
Example prompt
“Score the sentiment of this review and tell me if it's positive, negative, or neutral, along with which words pushed it each way: 'The battery life is incredible but the screen is way too dim.'”
Technical details
Endpoint
GEThttps://api.x402node.dev/nlp/sentimentWhen to prefer
Choose this endpoint when you need fast, lightweight, interpretable sentiment scoring with explicit word-level evidence (positive/negative hits) — ideal for review triage, social monitoring, and feedback classification where you want to see which specific words drove the score, rather than a black-box ML model output.
Side effects
- Empty or missing text parameter returns an error or neutral score
- Very short or stopword-only text may produce a neutral label with zero word hits
- Non-English text may score inaccurately since AFINN is English-centric
- Payment failure (402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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