As more teams build AI agents, search, and personalized feeds, one problem keeps surfacing.
Not generation.
Not model quality.
It s retrieval and ranking. Deciding what information should show up and in what order.
Most teams solve this by stitching together systems. Vector search for meaning. Keyword search for precision. Custom logic for business rules. Over time, relevance logic spreads everywhere and becomes hard to change.
@Shaped approaches this differently.
Flexprice
Hey Product Hunt π
I'm Manish, founder of @Flexprice . After spending over couple of years building billing systems, Iβve felt this pain deeply: building products is getting easier, but charging for them is still hard.
Modern AI and API-first products need usage-based pricing, credit systems, free tiers, and feature access but implementing all of that feels like starting a second startup just to manage billing π .
We tried everything like Stripe Billing, Chargebee, and a few newer tools but none truly solved our needs beyond basic subscriptions. Eventually, we built our own billing system from scratch. It took us over 6 months and still felt like a never-ending cycle of bugs and edge cases.
Every developer or founder Iβve spoken to who deals with anything usage-based had a similar story
@Flexprice is an open-source billing and metering infrastructure built specifically for todayβs AI and API-first products. You send your appβs usage events (API calls, GPU time, etc.) and @Flexprice takes care ofπ§βπ»
Usage metering
Calculating charges or credit consumption
Feature access management
Generating accurate invoices
Launch Special π
Use code PH200 for $200 off our hosted version (valid until June 30th)
Weβll be here all day to answer questions and share our building journey
Letβs chat!