S3Imgs's API v1 allows to upload pictures.
API v1 calls can be done using the POST or GET request methods but since GET request are limited by the maximum allowed length of an URL you should prefer the POST request method.
Note: Always use POST when uploading local files. Url encoding may alter the base64 source due to encoded characters or just by URL request length limit due to GET request.
API v1 responses display all the image uploaded information in JSON format.
JSON the response will have headers status codes to allow you to easily notice if the request was OK or not. It will also output the