Detect Language API
Overview
Detect Language API accurately identifies the language of any text, supporting over 164 languages and returning ISO language codes. It is simple to integrate with a straightforward POST request and an API key. Developers can use it to automatically route multilingual user content to the correct processing pipeline.
Beginner Tip
Send a POST request with your text in the "q" field and include your API key as a Bearer token — responses come back in milliseconds with an ISO 639-1 language code.
Available Data
Example Response
{
"status": "success",
"data": {
"result": "Data from Detect Language",
"description": "Detects text language",
"timestamp": "2025-01-15T10:00:00Z"
}
} Field Reference
language ISO 639-1 code of the detected language (e.g., "en", "de", "ja") isReliable Whether the detection confidence is high enough to trust the result confidence Confidence score for the top detected language; higher is more certain data.detections Array of all detected language candidates with their individual confidence scores Implementation Example
const url = "https://detectlanguage.com/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Matrix Score Breakdown
Partially tested on Apr 5, 2026
Technical Specifications
Related Tags
Alternatives to Detect Language
Technical alternatives for different use cases.
Language detection with 173 language support
Detecting more languages with confidence scores
Free tier (languagelayer requires paid plan)
Includes language detection alongside translation
Combined detection and translation in one API
Standalone detection accuracy for rare languages
Recipes Using Detect Language
Build something with this API. Each recipe includes step-by-step instructions and code outlines.
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