The lightning fast
text classification API
for developers.

Use Nyckel to integrate state of the art text classification into your application. Create your first custom function in minutes. Once created, your functions can be invoked in real-time using our API.

Text Classification In 2 Minutes

Build a function in as little as 2 minutes

Example Use Cases

Nyckel currently supports training text and image classifiers. The applications are only limited by your imagination. Below are a few examples.

Text Classification

Prospect Identification

Is your company looking for certain types of prospects? Create a function to recognize profiles of happy customers and use it to identify future prospects.

Text Classification

Spam Detection

Is your app getting spammed? Create a custom spam detection function based on your data and your desired sensitivity.

Text Classification

Sentiment Analysis

Moderate user content with Nyckel by creating a custom sentiment analysis function. You can sort out spam, hate speech, and more!

API Documentation

Train your function through the UI, then call it through the API. Or do everything through the API.




  • Includes 1,000 training samples
  • Includes 500 invokes
  • Upgrade for additional invokes


$50 / month

  • Includes 10,000 invokes
  • Additional invokes $0.005


$500 / month

  • Includes 500,000 invokes
  • Additional invokes $0.001



  • Learn how we can scale with your business