# General Translation Platform: Translate content at runtime
URL: https://generaltranslation.com/en-US/docs/platform/openapi/reference/translation/translate-runtime.mdx
Docs index: https://generaltranslation.com/llms.txt
Description: Translate strings, structured content, or Markdown and MDX documents. Send documents as strings with fileFormat set to MD or MDX. Requires project:translations:generate. Existing development API keys are also accepted. API reference for Translate content at runtime.

## Endpoint

`POST https://api.gtx.dev/v2/translate`

**Operation ID:** `translate`

**Tags:** `Translation`

**Summary:** Translate content at runtime

Translate strings, structured content, or Markdown and MDX documents. Send documents as strings with `fileFormat` set to `MD` or `MDX`. Requires `project:translations:generate`. Existing development API keys are also accepted.

Authentication: required. Send an API key in the `Authorization: Bearer <key>` header when authenticating.

### Parameters

- `gt-api-version` (header, "2025-01-01.v0" | "2025-11-03.v1" | "2026-02-18.v1" | "2026-03-06.v1", optional): API contract version. Defaults to the oldest supported version.
- `gt-project-id` (header, string, optional): Target project ID when no project ID is present in the path. Project API keys default to their bound project. If supplied, the header must match both the path target and the key’s bound project.

### Request body (required)

Body (`application/json`, object):
- `requests` (object, required)
  - `<key>` (object, dynamic key)
    - `source` (object)
    - `metadata` (object) Default: `{"dataFormat":"STRING","actionType":"fast"}`.
      - `id` (string)
      - `hash` (string)
      - `context` (string)
      - `maxChars` (number)
      - `dataFormat` ("JSX" | "ICU" | "I18NEXT" | "STRING")
      - `fileFormat` ("MD" | "MDX")
      - `actionType` ("fast" | "standard") Default: `"fast"`.
      - `sourceCode` (object)
        - `<key>` (object[], dynamic key)
- `targetLocale` (string, required)
- `sourceLocale` (string, required)
- `metadata` (object, required)
  - `modelProvider` ("ANTHROPIC" | "OPENAI" | "XAI" | "GOOGLE" | "HYPERCLOVA")

### Responses

**200**: All translations were served from cache
Response body (`application/json`, object):
- `<key>` (object | object, dynamic key)

**201**: Translations completed
Response body (`application/json`, object):
- `<key>` (object | object, dynamic key)

**400**: Request error
Response body (`application/json`, object):
- `error` (string, required)

Response body (`text/html`, string):

**401**: Request error
Response body (`application/json`, object):
- `error` (string, required)

Response body (`text/html`, string):

**402**: Request error
Response body (`application/json`, object):
- `error` (string, required)

Response body (`text/html`, string):

**403**: Request error
Response body (`application/json`, object):
- `error` (string, required)

Response body (`text/html`, string):

**404**: Request error
Response body (`application/json`, object):
- `error` (string, required)

Response body (`text/html`, string):

**413**: Request error
Response body (`application/json`, object):
- `error` (string, required)

Response body (`text/html`, string):

**429**: Request error
Response body (`application/json`, object):
- `error` (string, required)

Response body (`text/html`, string):

**500**: Request error
Response body (`application/json`, object):
- `error` (string, required)

Response body (`text/html`, string):

Complete OpenAPI 3.1 specification: https://generaltranslation.com/openapi.yaml

OpenAPI schema: [openapi.json](https://generaltranslation.com/openapi.json)

## Sitemap

See the full [sitemap](https://generaltranslation.com/sitemap.md) for all pages.