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Text Classifier API (klymax402)
x402
Text Classifier API (klymax402) is a paid API for AI agents from text-classifier.api.klymax402.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-13).
Classifies text content into predefined or custom categories, returning confidence scores and readability metrics
Price / call$0.012
Success—
StatusUnknown
How this service works
Classify text content into categories with confidence scores and readability metrics
Output
Returns category labels with associated confidence scores indicating how strongly the text matches each category, along with readability metrics for the input text
Example use cases
Auto-tag blog posts by topic
“I have a batch of blog posts that need to be organized on our website. Can you classify each one into the right topic category — like technology, lifestyle, finance, or health — and give me the confidence scores so I know which ones are borderline and might need a human review?”
Filter user-generated content buckets
“We're getting a ton of user submissions on our platform and need to sort them into predefined buckets: sports, entertainment, politics, and general news. Can you run each piece of content through classification and flag anything where the top confidence score is below 0.7 so our moderators can double-check those?”
Measure article readability before publishing
“Before we publish these three draft articles to our blog, can you classify them by subject matter and also pull the readability metrics? I want to make sure the content is hitting the right topics and is written at an appropriate level for our general audience.”
Technical details
Endpoint
GEThttps://text-classifier.api.klymax402.com/api/classifyWhen to prefer
Use this endpoint when you need fast, scored topic classification of a text passage into standard or custom categories, especially when readability metrics alongside classification confidence are needed. Prefer this over general LLM prompting when you want a structured, deterministic classification output with numeric confidence values rather than a free-text answer.
Side effects
- Text shorter than 50 characters may return inaccurate or low-confidence results
- Invalid or empty text input returns an error
- Custom categories array with unrecognizable or very broad terms may yield low confidence across all labels
- Network timeout if text payload is excessively large
- Payment failure (x402) if USDC balance is insufficient, blocking the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | The text content to classify (min 50 characters for accurate results) |
| categories | array | Optional custom categories to classify against. Default: tech, finance, health, sports, politics, entertainment, science, business |
Tags
x402
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