Translate Text

Translate text between languages

Translate text to any of 100+ supported languages using neural machine translation.

Endpoint

POST /translate/v1/translate

cURL

curl -X POST https://api.case.dev/translate/v1/translate \
  -H "Authorization: Bearer sk_case_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "q": "The plaintiff filed a motion for summary judgment.",
    "target": "es"
  }'

Response

{
  "data": {
    "translations": [
      {
        "translatedText": "El demandante presentó una moción de juicio sumario.",
        "detectedSourceLanguage": "en"
      }
    ]
  }
}

Parameters

Required

Parameter	Type	Description
q	string or string[]	Text to translate. Can be a single string or array for batch translation.
target	string	Target language code (ISO 639-1), e.g., es, fr, de, zh

Optional

Parameter	Type	Default	Description
source	string	auto-detect	Source language code. If omitted, language is automatically detected.
format	string	text	Format of source text: text or html
model	string	nmt	Translation model: nmt (neural) or base

Batch translation

Translate multiple strings in a single request:

CLI

casedev translate:v1 translate \
  --q "The deposition will be held on Monday." \
  --target es

HTML preservation

Preserve HTML tags during translation with format: 'html':

cURL

curl -X POST https://api.case.dev/translate/v1/translate \
  -H "Authorization: Bearer sk_case_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "q": "<p>The <strong>defendant</strong> denies all allegations.</p>",
    "target": "de",
    "format": "html"
  }'

Common language codes

Language	Code
English	en
Spanish	es
French	fr
German	de
Chinese (Simplified)	zh
Chinese (Traditional)	zh-TW
Japanese	ja
Korean	ko
Arabic	ar
Portuguese	pt
Russian	ru
Italian	it

See the Supported Languages endpoint for a complete list.

Examples

Translate a legal document

CLI

casedev translate:v1 translate \
  --q "NOTICE OF MOTION - PLEASE TAKE NOTICE that the undersigned..." \
  --target es

Auto-detect source language

CLI

casedev translate:v1 translate \
  --q "Bonjour, comment puis-je vous aider?" \
  --target en

Pricing: $0.05 per 1,000 characters. A 50,000 character document costs $2.50.