Hey HN! Founder of Amna (<a href="https://getamna.com" rel="nofollow">https://getamna.com</a>). To build a productivity app today, we need integrations with a bunch of existing services. We did a bunch of work messing with these APIs, so we built a shared library that works over Gmail, Outlook, Microsoft-Todo, Github, and bunch more to put them as singular interfaces.<p>We monetized it using Libmon. Basically a one-time token you can purchase that gives you access to call the library (you can try it it without purchasing as well, with some limits). There's no overhead, it directly calls the respective APIs.<p>We might open-source it later, or provide source access to token purchasers. Still figuring that out.