Text To Equation Images API

Get Math Equations as images just by giving text as input via API. Great addition to you document workflow.

Equation to Image API

Bring your equations to life with our powerful API that converts mathematical expressions into high-quality images. Perfect for developers, educators, and content creators who need seamless equation rendering for web apps, documents, or presentations.

Why Choose Our API?

• Fast & Reliable – Get equation images in seconds.
• High-Quality Output – Crisp, clear, and customizable visuals.
• Seamless Integration – Easy-to-use API for any platform.

Use Cases

• Educational Platforms – Enhance learning materials with clear mathematical visuals.
• Technical Blogs – Improve content readability with properly formatted equations.
• Research Papers – Generate precise mathematical notation for documentation.
• E-commerce & Apps – Display pricing formulas, physics equations, and more.

Here is an actual output image from the API

Text to Equation Image API Documentation

POST /image/equation
    parameters 
              equation = <equation>
              format = <jpeg/png>
              size = <number> // Font size
              color = <#000000> // Font color in hex
              bgcolor = <#ffffff> // background color in hex
              transparent = true/false // Transparent background ? Only if PNG

The above call should produce a result like this

{
    "success": {
        "total": 6
    },
    "contents": {
        "success": true,
        "format": "jpeg",
        "size": "24",
        "image": "/9j/4AAQSkZJRgABAQEA...",
        "equation": "S(f)(t)=a_{0}+sum{n=1}{+infty}{a_{n} cos(n omega t)+b_{n} sin(n omega t)}",
        "encoding": "base64"
    },
    "copyright": {
        "url": "api.interfaces.one",
        "year": "2025"
    }
}

Ratelimiting

Some of our API calls may be public(requires free API key) , while others requires paid subscription. To maintain our serice levels both public and private API endpoints are ratelimited. Please consult your specific plan that you subscribed to for the rate limit details.

Authentication

Currently we support API Key based authentication. Please set your Autorization Bearer request header with value of your API key. Alternatively you can also pass api_key= as a request parameter, though we strongly discourage this mode of passing the key, since it will allow others to see your key.

In curl this would mean sending the Authorization header like below.

            
 curl -i <url> -H "Authorization: Bearer <api_key>"
            
            

If you are using PHP.

            
$authorization = "Authorization: Bearer <api_key>";
$ch = curl_init('<url>'); // Initialise cURL
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json' , $authorization ));
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); // OR GET
$result = curl_exec($ch);
curl_close($ch);
            
            

In javascript you can use headers key to add the authorization header

            
$.ajax({
   url: '<url>'
   type: 'GET',
   contentType: 'application/json'
   headers: {
      'Authorization': 'Bearer <api_key>'
   },
   success: function (result) {
       // CallBack(result);
   },
   error: function (error) {

   }
});