How can I convert $\TeX$ image to Wolfram expression via MathPix

Question

Mathpix is a tool which can covert $\TeX$ image to $\TeX$ expression, they also say they can return a string which is compatible with the Wolfram Alpha engine if possible.

I found their documentation and did such an attempt:

doc: https://docs.mathpix.com/#processing-a-single-image

img = Import@"https://raw.githubusercontent.com/Mathpix/api-examples/master/images/limit.jpg";
base64 = ExportString[ExportString[img, "JPEG"], "Base64"];
HTTPRequest[
    "https://api.mathpix.com/v3/latex",
    <|
        "Method" -> "POST",
        "Headers" -> {
            "app_id" -> "trial",
            "app_key" -> "34f1a4cea0eaca8540c95908b4dc84ab",
            "Content-type" -> "application/json"
        },
        "Body" -> {
            "src" -> "data:image/jpg;base64," <> base64,
            "format" -> <|"wolfram" -> True|>
        }
    |>
] // URLExecute[#, "RawJSON"]&

Then Mathematica kept asking me to input Authentication Require, and no matter what I do with that, it always return:

<|
    "error" -> "Invalid credentials",
    "error_info" -> <|
        "id" -> "http_unauthorized",
        "message" -> "Invalid credentials"
    |>
|>

I don't know what Authentication Require is, can I avoid jumping out of that verification.

Answer 1

Try Mathpix API in Mathematica

https://github.com/Moe-Net/Mathpix