The only thing that occurs to me is the example of one of the few online services I pay for: Kagi search, for which I pay $10/month.
They have a bunch of features that I don’t care about and never use (AI, their web browser, ...). I just need their core search product (because Google is useless). Instead of putting features behind a paywall, they offer search free of charge up to a certain number of searches per month (I think). It’s enough to learn if their search is good enough to pay for. I pay to continue to use their core service more frequently (and I guess it’s the same with most of their paying customers).
Your customers seem to find value in your core service but don’t want to pay for the extras. Maybe you could apply the Kagi model?
They have a bunch of features that I don’t care about and never use (AI, their web browser, ...). I just need their core search product (because Google is useless). Instead of putting features behind a paywall, they offer search free of charge up to a certain number of searches per month (I think). It’s enough to learn if their search is good enough to pay for. I pay to continue to use their core service more frequently (and I guess it’s the same with most of their paying customers).
Your customers seem to find value in your core service but don’t want to pay for the extras. Maybe you could apply the Kagi model?