AI Translate API Service
Translate text, HTML, JSON, XML, YAML and Markdown into 100+ languages, markup intact.
- Category
- Translation
- Endpoints
- 7
- Subscribers
- 37
- Updated
- 2026-08-04
Overview
Most translation APIs take a string. This one takes a document. Send HTML and the tags survive; send JSON and only the values are translated while the keys stay untouched; send XML, YAML or Markdown and the structure comes back intact with the prose swapped.
That difference matters when the thing you are localising is a product, not a paragraph. A locale file, a CMS export, a rendered email template or a documentation page can go through the API and come back ready to ship, without a parse-translate-reassemble step of your own.
Over 100 ISO 639-1 languages are supported, with right-to-left handling for Arabic and Hebrew, regional variants such as pt-BR and fr-CA, optional source-language detection, and context and tone parameters for the plain-text endpoint.
What you get
- Format-aware endpoints for HTML, JSON, XML, YAML, Markdown and plain text
- Markup, keys and structure preserved — only prose is translated
- 100+ languages with RTL support and regional variants
- Context and tone parameters for nuance control
- Documented error codes for invalid language and rate-limit cases
Endpoints
| Method | Path | What it does |
|---|---|---|
| POST | /translate |
Plain text with optional context and tone |
| POST | /translateHtml |
HTML with markup preserved |
| POST | /translateJson |
JSON values translated, keys untouched |
| POST | /translateXml |
XML element text translated |
| POST | /translateYaml |
YAML values translated |
| POST | /translateMd |
Markdown with formatting preserved |
| POST | /translateTxt |
Plain text file contents |
Frequently asked questions
- Is AI Translate API Service free?
- AI Translate API Service has a Basic plan that costs $0 per month and needs no card. Paid plans exist for higher volume and are listed above.
- How many endpoints does AI Translate API Service have?
- AI Translate API Service publishes 7 endpoints. Each one is listed above with its method, path and purpose.
- How do I get an API key for AI Translate API Service?
- Subscribe to the free plan on the marketplace listing. The key appears immediately and works in the browser playground before you write any code.
Best free Translation APIs
Try AI Translate API Service for free
Subscribe to the free plan, get your key and test every endpoint in the browser playground before you write a line of code.
Get the API key