Translation API for Developers — 5 AI Engines, One Endpoint
Integrate AI-powered translation into any app with a single REST API. Choose from DeepL, Google, Microsoft, GPT, or Gemini per request. JSON in, JSON out.
Quick Start
Make your first translation in under 30 seconds. No SDK required — just curl.
Request
curl -X POST https://adaratranslate.com/api/translation/translate \
-H "X-API-Key: adara_live_..." \
-H "Content-Type: application/json" \
-d '{ "text": "Hello world", "source": "en", "target": "es", "engine": "deepl" }' Response
{ "translated_text": "Hola mundo", "engine": "deepl", "source_lang": "en", "target_lang": "es" }MCP Server for AI Agents
Use Adara Translate as a tool inside Claude Desktop, Cursor, Claude Code, and any other MCP-compatible AI agent. Install the adara-mcp-translate npm package, paste your API key, and four translation tools appear in your agent.
Claude Desktop / Cursor config
{
"mcpServers": {
"adara": {
"command": "npx",
"args": ["-y", "adara-mcp-translate"],
"env": { "ADARA_API_KEY": "adara_live_..." }
}
}
}Exposed MCP tools
- translate_text — multi-engine text translation (DeepL, Google, Microsoft, GPT, Gemini).
- translate_document — PDF, DOCX, XLSX, CSV, PPTX, SRT up to 5 MB.
- transcribe_audio — MP3, WAV, OGG, M4A, WebM via Whisper (up to 25 MB).
- get_user_credits — read the authenticated balance without consuming credits.
How It Works
Sign Up for an API Key
Create a free Adara Translate account and generate your API key from the dashboard. No credit card required for the free tier.
Make Your First API Call
Send a POST request with your text, source language, target language, and preferred engine. Get a translated response in milliseconds.
Choose Your Engine
Experiment with all five AI engines — DeepL for European languages, GPT for creative content, Google for breadth, Gemini for speed, Microsoft for enterprise.
Scale to Production
Upgrade your plan for more monthly credits and priority support. Monitor usage and costs from the developer dashboard.
Supported Engines
Five world-class AI translation engines, accessible through a single unified API. Switch engines per request with no configuration changes.
DeepL
Best-in-class accuracy for European languages. Natural, fluent output that reads like human translation.
Google Translate
Widest language coverage with 100+ languages. Fast, reliable, and continuously improving with Neural MT.
Microsoft Translator
Enterprise-grade with Azure integration. Strong for business documents and formal content.
GPT
Context-aware translations powered by OpenAI. Excels at creative content, marketing copy, and nuanced text.
Gemini
Google DeepMind's latest model. Fast inference with strong multilingual understanding and low latency.
Key Features
A developer-first translation API designed for production workloads at any scale.
RESTful API with JSON
Simple, predictable REST endpoints that accept and return JSON. Standard HTTP methods, status codes, and error responses — no SDKs required to get started.
Multi-Engine Selection
Choose from DeepL, Google Translate, Microsoft Translator, GPT, or Gemini per request. Switch engines on the fly based on language pair, quality needs, or cost.
Document Translation API
Upload PDF, DOCX, XLSX, PPTX, CSV, or SRT files via the API and receive fully translated documents with formatting preserved.
Audio Transcription
Transcribe MP3, WAV, OGG, M4A, or WebM files up to 25 MB using OpenAI Whisper — the same API key, the same credit pool.
Glossary Support
Create and attach custom glossaries to enforce consistent terminology — brand names, product terms, and industry jargon translated exactly how you want.
MCP Server for AI Agents
Use Adara inside Claude Desktop, Cursor, and any MCP-compatible agent. The adara-mcp-translate npm package exposes translation, document translation, and transcription as tools.
Built for Every Integration
From SaaS products to mobile apps to content pipelines — the API fits wherever you need translation.
SaaS Localization
Localize your app's UI strings, help docs, and onboarding flows programmatically as part of your CI/CD pipeline.
Mobile App Translation
Integrate the API into your iOS or Android app to translate user-generated content, chat messages, or in-app text in real time.
CMS Integration
Connect Adara Translate to your CMS — WordPress, Contentful, Sanity, Strapi — and translate content on publish automatically.
E-Commerce Catalog Translation
Translate product titles, descriptions, and attributes across your entire catalog for international storefronts.
Customer Support Automation
Translate incoming support tickets and outgoing responses in real time to serve customers in any language.
Content Pipeline Automation
Build translation into your content pipeline — from authoring to review to publication — across text, documents, and subtitles through a single API.
Frequently Asked Questions
How is the API priced?
The API uses a credit-based system tied to your subscription plan. Each translation consumes credits based on text length and engine used. Plan credit allotments: Starter 50,000/month, Pro 200,000/month, Business 750,000/month, Enterprise effectively unlimited. See the pricing page for the full breakdown.
How do I authenticate API requests?
Include your API key in the X-API-Key header on every request: "X-API-Key: adara_live_...". Keys are generated at /dashboard/api-keys in your Adara Translate dashboard. The same key is used for text translation, document translation, transcription, and the MCP server.
What languages are supported?
The API supports 100+ languages across all five engines. Language availability varies by engine — Google and Microsoft offer the widest coverage, while DeepL specializes in 30+ high-quality language pairs.
Is there an MCP server for AI agents?
Yes. The adara-mcp-translate package exposes four tools (translate_text, translate_document, transcribe_audio, get_user_credits) over MCP stdio transport. It works with Claude Desktop, Cursor, Claude Code, and any MCP-compatible client. Authenticate with the same API key you use for the REST API.
Get Your API Key — Free Tier Included
Start with 10,000 free credits per month. No credit card required. Scale when you are ready.