There's nothing on the homepage, no pricing page, nothing. It makes me nervous to sign up without this information.
I went looking... it's not on the site, not in the knowledge base, not on the blog.
There is absolutely no pricing information.
Does Taco not charge anyone? If you do charge, give me a ballpark, a range even... it doesn't matter so long as you give it.
Am I signing up for something without that info? Er... no.
Turn this upside down now, think about 100 users paying $50 a month for something they depend on, I bill $100/hr, if you can save me an hour a month I'm winning, once you have $5000 a month every month think about the next 100, keep going, sounds like your product has a use, don't make the free mistake, it's been highlighted here many times, good luck!
If you're going to have a free tier, I'd say limit it to N service integrations (3-5), but definitely make your core users paying close to the start.
If I had a need for something like this day to day, I'd definitely pay... Actually, I'd suffer for a while, then try it, then suffer again, then pay... but that's me and I'm kind of cheap/frugal. Most people will start paying once they see and feel the value.
Also, it's much easier to field requests from a few hundred paying users than thousands of non-paying ones. It's very hard to do conversion from free after the fact... many businesses have failed, burned, burned out, and left their best (paying) users in a lurch following this model.