API for transactional notifications

Hello,
I've just released a very early stage MVP to validate an idea: I am building an API to wrap existing services (email, sms, push notifications..), and store notification templates, and user preferences about how to receive those templates: https://www.indiehackers.com/product/filipid .

The target customers would be developers that want to send localized notifications through different channels. I am not sure if the tool qualifies as a "no-code" / "low-code" tool.

I still have to provide a landing about the problem it intends to solve:

• storing in a single place all localized notification templates for different carriers (or chanels .. I might need to improve the concept names)
• storing in the service the recipients preferences in a single place (so, in your client code you don't have to check how to send a notification)
• store in the service additional per-recipient payload info
• sending a notification to a set of recipients with a single API call
• be able to easily switch from one provider to another (for example, a simple config change to move from Mailgun to Sendgrid, or any other email provider).

There are some API docs about how to use it : https://apidocs.filipid.com/ from the API.

You can also register for free, create an API key, and also use the UI to create some content and send it (however, some UI needs to be improved).

So, I would like to have some feedback about if the tool could be of interest. Perhaps what features would be interesting to have / improve. And, I am not sure if is ok to cross post in the "No Code" group, as they could be my ideal customers.

PS: When I joined IH 9 months ago, my idea was to build several ideas, and share them, .. but I totally failed. At some point I started building Filipid to scratch my own itch, and I just forced myself to publish what I've done with Filipid before the end of the year. I might have taken too long to ask for feedback about it.