
Billing Infrastructure for AI Startups | Autumn
Billing infrastructure for AI startups, handling payments, usage limits, and credits.
@coleywoleyyy · X
Yup, it’s buns. I vibe coded my own tool at Helicone, might make it easier
The full gallery
Tech stack
60 projects

Billing infrastructure for AI startups, handling payments, usage limits, and credits.
@coleywoleyyy · X
Yup, it’s buns. I vibe coded my own tool at Helicone, might make it easier

Calculate costs across 230+ AI API models and simulate budget impacts.
ahmed_hassan7 · HN
CostPerPrompt – Live AI API pricing and real-workload cost calculators

Automatically route each prompt to the cheapest capable model to cut API costs.
u/ASDKING100 · Reddit
Launched an AI API router tonight, and found a bug hours in that would've taken real payments without ever upgrading the account Built LLMLite over the past few weeks — it classifies each prompt and routes it to the cheapest model that can actually handle it, instead of hitting GPT-4o for everything. Free tier, no card needed to try it. Tonight, right as I was about to launch, ran a real transaction to test the payment flow end to end. Paddle processed it, webhook fired, signature verified

Send RFQs, collect supplier pricing, and build customer quotes without spreadsheets.
@stephanebalon · X
a SaaS for product-based SMBs that rely on supplier pricing to prepare customer quotes. It centralizes RFQs, supplier responses, pricing history, ETAs and margins—so teams can quote faster, protect profitability and stop searching through emails and spreadsheets

A self-hosted Kajabi, Podia and ThriveCart alternative. Courses, funnels, community and checkout on your own Stripe — $497 once, then about $7 a month.
@mattgiaro · X
→ alternative to thrivecart, teachable, and kajabi

AI-powered price negotiation tool for merchants, landlords, and freelancers to auto-negotiate with customers in real time.
@hagglceo · X
I am building it is a negotiation tool used by merchants, landlords and freelancers for their services so their customers can negotiate prices. Instead of waiting for discounts instead use haggl to get the price you want. Guess what you can negotiate the subscription price because we believe in what we are doing 🥳🥳🥳🥳🥳🥳🥳🥳

Manage restaurants, hotels, and retail with QR ordering, invoicing, and analytics.
@Billif_app · X

Compare costs of coding-agent harness strategies with event-level cache and context accounting.
taosx · HN
I created a simulation for coding harnesses based on my own pi sessions. When taking into account all factors, DS-v4-Pro is cheaper than gpt-5.6-luna due to caching. Look at the bill segments difference for cache read cost and uncached cost between deepseek and the other models. At this point is cheaper to use ds-v4-pro than the luna models from openai. ignore the numbers except the classic and keep in mind that classic is based on pi with the only change limiting tool output to 10kb https://har

Every week DCE creates a ready-to-use blog, 3 Instagram posts, 5 social posts and matching images for your business. Choose between two finished versions for £9.99 per month.
@GreyPatrickAI · X
Digital Content Engine: weekly content for small businesses. Two campaign directions, blogs, social posts, image ideas and CLEAR review, then you pick the direction you want to use. £9.99/month.

See what DoorDash, Uber Eats, Grubhub, and catering marketplaces actually cost. Reconcile payouts, expose deductions, and track true delivery margin by location.
@myke86d · X
operator first

Monitor AI API costs from OpenAI, Anthropic, and xAI by connecting provider keys.
@ylin_ · X
So my launch of – the simple, proxy-less AI model cost monitoring software – didn’t generate much response. I said I would build this in public, so here is an update. I am very happy with the app for my own use. It’s everything I want it to be. So even without users, I’m glad I built this just for myself. It’s probably not accurate to say I “launched” this. All I did was publish the app, make a single post on X, LinkedIn and Show HN. That’s not really any sort of distribution effort needed for an app. So I will continue to get the word out regarding Costbase on Reddit, and other places, as well as engaging with X users who have problem with AI cost. (If you guys have ideas, lmk) It’s just a small app, a side project, so I won’t put too much time marketing this before calling it quit. Pre-AI, I’ve always spent so much effort building an app that I don’t have any time left for marketing (I also run an ERP consultancy). Now, building is pretty much automated, so th

Track daily cash, savings, income, expenses, child costs and employee wages with monthly and annual summaries.
@kobinardst2dio · X
Check out what I just built with Lovable!