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x402node Language Detection
x402
x402node Language Detection is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Detects the language of input text using rule-based unicode-script analysis and Latin stopword matching, returning ISO 639-1 code, detection method, and confidence score.
Price / call$0.005
Success—
StatusUnknown
How this service works
Detect text language with rule-based unicode-script + Latin stopword matching. Returns ISO 639-1 code, detection method, confidence. Use ?text=Bonjour+le+monde. Built for AI agents routing inputs by language, content moderation, and analytics. Accepts payment on Base or Solana — either network works.
Output
Returns a JSON object with the detected ISO 639-1 language code (e.g. 'fr'), the detection method used (unicode-script or Latin stopword matching), and a confidence score indicating how certain the detection is.
Example use cases
Example prompt
“What language is this text written in: 'Bonjour le monde, comment ça va?' — give me the ISO 639-1 code and your confidence level.”
Technical details
Endpoint
GEThttps://api.x402node.dev/nlp/detectWhen to prefer
Choose this endpoint when you need lightweight, fast language detection without relying on a third-party ML API, especially for AI agent pipelines that need to route text by language, enforce language policies, or preprocess multilingual input. It is well-suited for high-volume analytics use cases given its low per-call cost and rule-based determinism.
Side effects
- Empty or whitespace-only text input returns no detectable language
- Very short text (single word) may yield low confidence score
- Mixed-language text may produce ambiguous or incorrect language code
- Unsupported or rare scripts may fall back to low-confidence guess
- Network timeout or payment validation failure returns error response
Input
{
"text": "Hello world"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"_hint": "x402 paid endpoints for AI agents — x402node.dev (utilities) · cn402.com (Chinese culture)",
"method": "stopword-matching",
"language": "en",
"confidence": "low",
"stopword_hits": {
"de": 0,
"en": 0,
"es": 0,
"fr": 0,
"it": 0,
"nl": 0,
"pt": 0,
"ru": 0,
"sv": 0
},
"words_analyzed": 2
}Tags
x402
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