The Best Translation API for Developers & Global Teams

Looking for the best translate api? Smartcat offers a powerful AI-driven solution for 280+ languages. It combines speed with human-in-the-loop quality assurance for developers and businesses.

Trusted by over 1,000 global leaders to power their localization needs


Why Developers Choose Our Translation API

99.5%

uptime SLA

Build with confidence on our reliable infrastructure. Our platform ensures your application has consistent access to translation services.

50%

faster integration

Our clear documentation and SDKs help you connect to the best language translation api in half the time compared to other providers.

280+

languages supported

Reach a global audience with a single API call. We support everything from common pairs to specific needs like the best translation api hebrew to english.

AI Translation That Learns

Our API is powered by expert-enabled AI Agents. They learn from your team's feedback to ensure brand voice and terminology remain consistent across all translations.

Integrated Human Review

You don't need to choose between speed and quality. Programmatically send content for review by your team or our marketplace of 500,000+ expert reviewers.

Seamless Developer Experience

Access comprehensive documentation, SDKs, and code examples. We make integration straightforward for any application, which is why we are considered the best translator api by many.

Flexible and Scalable

Whether you're a startup or an enterprise, our API scales with you. Handle millions of words without compromising performance or breaking your budget.

Broad File Format Support

Translate more than just strings. The API handles complex formats like JSON, XLIFF, and RESX, making it the best website translation api for dynamic content.

How to Integrate the Best Translate API

1

Get Your API Key

Sign up for a free Smartcat account. Then, generate your unique API key in the developer settings to get started.

2

Choose Your Endpoint

Select the right API endpoint for your use case. Options include document translation, string processing, or project management.

3

Make Your First API Call

Use our SDKs or a direct HTTP request to send content for AI translation. Our documentation makes it simple to begin.

4

Incorporate Human Review

For critical content, programmatically create projects and assign expert reviewers to ensure the highest translation quality.

5

Retrieve Translated Content

Fetch completed translations via the API. Seamlessly integrate them back into your application or content workflow.

For Developers

As a developer, you need a translation API that delivers reliable results. Our API provides the performance and tools you need. It's one of the best 10 translation apis for developers.

The API documentation is clear, and the SDKs made our integration straightforward.

For Product Managers

Launch features globally from day one. Our API integrates into your CI/CD pipeline for continuous localization, accelerating your time-to-market.

We’ve cut our international release cycles by 60% by automating translation.

For Content Teams

Marketing and L&D teams can create and translate content simultaneously. Keep campaigns and training materials consistent across all regions.

Our global training materials are now always up-to-date with product updates.

The Best Translation Engine API for Enterprise

9.6/10

for API ease of use

9.3/10

for quality of support

1,000+

global API users

20%

of the Fortune 500

Ready to start building?

Integrating the Smartcat API saved us about 1,000 hours of yearly administrative time. The automation of our workflow was seamless and efficient.

Peggy Liao

Language Access Program and Policy Specialist

Proven Results from the Best Language Translation API

50%

increase in localization speed

Expondo automated their workflow with the API, doubling their output while cutting outsourcing costs in half.

1,000+

administrative hours saved annually

City of Seattle used API automation to reduce management overhead and cut expenses by 17%.

31 hours

of work time saved monthly

Babbel’s marketing and L&D departments streamlined content updates using API-driven workflows.

Enterprise-Grade Security and Compliance

Your data is protected. Our platform is SOC 2 Type II compliant and uses end-to-end encryption, ensuring your content is secure when using our translation API.

Find Your Best Translation API Today

Get started with an API that delivers quality, speed, and scalability. Integrate Smartcat to connect with global audiences more effectively.

Frequently Asked Questions

Who has the best translations api?

The 'best' depends on your specific needs. A good translate api provides a balance of quality, speed, scalability, and cost. Smartcat's API excels by combining AI translation with an optional human review layer, making it a top choice for many businesses.

What makes a good language translation API for developers?

Developers look for clear documentation, robust SDKs, high uptime, and predictable performance. Among the best 10 translation apis for developers, those offering features like continuous localization and broad file format support stand out.

How has the best translation engine api evolved since 2018?

The best translation api 2018 was likely based on statistical methods. Today's leading APIs use advanced neural networks. They learn from user feedback, offering far greater accuracy and contextual understanding for all translations.

Can I use the API for specific language pairs like Hebrew to English?

Absolutely. Our API supports over 280 languages. It is often cited as the best translation api hebrew to english due to its high accuracy and quality for complex language pairs.

Is this a good website translation api?

Yes. Our API can process HTML, JSON, and XLIFF files while preserving code structure. This makes it an ideal choice for localizing websites and web applications dynamically, making it the best website translation api for many use cases.

What are the best 10 translation apis?

The list of the best 10 translation apis often includes providers that excel in different areas. Smartcat is consistently ranked for its unique combination of AI power, an integrated reviewer marketplace, and a comprehensive platform that supports the entire localization workflow. This makes it the best translator api for businesses aiming for high quality at scale.

What is a 'human-in-the-loop' workflow?

This means you can use the API for instant AI translation. Then, you can programmatically send content to human reviewers for polishing. This process combines the speed of AI with the nuance of human expertise.

Is there a 'good news translation us version api'?

While our API doesn't specifically offer a 'good news translation us version api' for biblical texts, it can be trained on specific terminology and styles. You can use glossaries and provide feedback to adapt the AI to translate religious or specialized texts with high fidelity.