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Text Classifier API
x402
Text Classifier API is a paid API for AI agents from dominion-data.x402-evm-math.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).
Classifies arbitrary text into user-defined labels using an LLM, returning the best matching label and a one-line explanation.
Price / call$0.005
Success—
StatusUnknown
How this service works
Text classification API: classify text into your own labels with an LLM, returns the best label and a one-line reason.
Output
Returns the single best-matching label from the user-provided list and a concise one-line explanation of why that label was chosen, powered by an LLM classification step.
Example use cases
Customer support ticket routing
“Classify this incoming support ticket as either 'billing', 'technical', 'account', or 'other', and tell me why: 'I can't log into my account after the recent update.'”
News article topic tagging
“Tag this news snippet with one of these topics — 'politics', 'technology', 'sports', 'health', 'finance' — and explain briefly: 'The Fed announced a 25 basis point rate hike amid ongoing inflation concerns.'”
Product review sentiment labeling
“Classify this product review as 'positive', 'negative', or 'mixed', with a one-line reason: 'The battery life is fantastic but the screen scratches way too easily.'”
Technical details
Endpoint
POSThttps://dominion-data.x402-evm-math.workers.dev/ai/classify?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, pay-per-call text classification against custom user-defined labels without standing up your own LLM pipeline. It is ideal for dynamic labeling tasks where categories change per request, and when you want a human-readable reason alongside the label. Prefer it over general-purpose LLM APIs when cost predictability ($0.005/call) and a single structured classification output are priorities.
Side effects
- Empty or missing text input returns a validation error
- No labels provided results in an error or undefined output
- Ambiguous text with no clearly matching label may return a low-confidence or unexpected label
- Payment failure via x402 protocol blocks the request
- Rate limiting or worker timeout for very long input texts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
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