Fixer.io - Fixer provides a free, simple, and lightweight API for current and historical foreign exchange rates and currency conversion. The API tracks rates published daily by the European Central Bank.
OpenInsider - OpenInsider is an SEC Form 4 insider screener that allows you to monitor the insider trading filings for insider buying and selling.
Open Exchange Rates - Free, hourly-updated exchange rates - a simple, accurate, open-source JSON API. Free for personal use, a bargain for everybody else.
Finviz Insider Trading - Finviz Insider Trading platform allows you to perform trades, investments, and transactions in the company’s stock shares.
Currencyapi.com - Currencyapi.com is a free, reliable & feature complete currency exchange rates API. 170+ world currencies & 60 second update rate.
Sec Form 4 - Sec Form 4 is a real-time insider data providing platform that shows insider trades, transactions, buying, and selling data.