Language Detection API

Detect the language of any text: ISO 639-3 code, English name, confidence, reliability flag and top 5 candidates. Fast, no AI costs, works offline.

Authentication & base URL

Subscribe through one of our marketplace listings; your marketplace API key and base URL are shown there. All endpoints return JSON over HTTPS, served from a global edge network (typically 20–150 ms).

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Endpoints

GET `/v1/language`

Detect language

Parameter	In	Description	Example
`text` *	query	Text (or POST it)	`Ceci est une phrase en français.`

Example

GET /v1/language?text=Ceci+est+une+phrase+en+fran%C3%A7ais.

{
  "language": "fra",
  "languageName": "French",
  "confidence": 1,
  "reliable": false,
  "candidates": [
    {
      "code": "fra",
      "name": "French",
      "score": 1
    },
    {
      "code": "spa",
      "name": "Spanish",
      "score": 0.922
    },
    {
      "code": "eng",
      "name": "English",
      "score": 0.816
    },
    {
      "code": "ita",
      "name": "Italian",
      "score": 0.75
    },
    {
      "code": "deu",
      "name": "German",
      "score": 0.743
    }
  ],
  "note": "ISO 639-3 codes. Short texts are less reliable."
}

Detect the language of any text: ISO 639-3 code, English name, confidence, reliability flag and top 5 candidates. Fast, no AI costs, works offline.

Use cases

Routing support tickets, content moderation, translation pipelines, analytics by language.

Why this API

Fast: runs on a global edge network, typical response well under 1 second.
Reliable: simple JSON, clear error messages.
Fair pricing: Free plan 500 requests/month, Pro 25,000 for $4.99, Ultra 150,000 for $14.99.

Pricing

Free plan with 500 calls per month, then Pro (25,000 calls for $4.99/month) and Ultra (150,000 calls for $14.99/month). See all plans.