You’ve opened the page with Pho.to API and took an interest in it. But then some problems occurred. This topic is created specially for solving your problems with our API adoption .
Before asking your question, please, look through platform's SDK(handle_url_tag('http://pho.to/editor-platform/sdk%20package.zip')) carefully. If you already have experience in API adoption then help other developers - we are sure they will appreciate it.