Features

AI Translation

Lezu can translate one string, many strings, or entire imports into multiple target languages.

Translate One String

POST /v1/translate/text
Authorization: ApiKey lez_...
Content-Type: application/json

{
  "sourceLocale": "en",
  "targetLocale": "nl",
  "text": "Welcome back"
}

Translate Many Strings

{
  "sourceLocale": "en",
  "targetLocale": "nl",
  "items": [
    {
      "id": "home.title",
      "text": "Welcome back"
    },
    {
      "id": "billing.upgrade",
      "text": "Upgrade plan"
    }
  ]
}

Translate Into Many Languages

{
  "sourceLocale": "en",
  "targetLocales": ["nl", "fr", "de"],
  "items": [{ "id": "home.title", "text": "Welcome back" }]
}

Estimate Usage First

POST /v1/translate/estimate
Authorization: ApiKey lez_...
Content-Type: application/json

Use estimates before large translation work so users can understand the expected translation units.

Translation Jobs

For larger work, create a job and poll it:

POST /v1/translate/jobs
GET  /v1/translate/jobs/:jobId
GET  /v1/translate/jobs/:jobId/result
POST /v1/translate/jobs/:jobId/cancel

Jobs are useful for larger imports, multi-language translations, and automated workflows where you do not want a single request to block.

Relevant Endpoints