Ok. I'm confused by the question.
Websites sometimes provice API's to access and update data from other programs like Filemaker.
They are almost always unique in their language used. Some are documented, some not.
MailChimp is an online email management service, for instance.
Google Maps for another.
sorry, you got my wrong.
i want to trigger a filemaker script from an external source.
i read that you can feed data from external sources into filemaker, trough its api.