AI-native product builder
Luke Carriere
I've taken seven products from idea to live production, from an AI agent payment SDK to a flare-gas finder for bitcoin miners.
- 7 live products
- 4 public APIs
Projects
With a public API
eCashu Agent
Private payments between AI agents.
A Cashu ecash settlement SDK that lets autonomous AI agents pay each other per request, with no accounts, no subscriptions, and no middlemen. Payments can be locked to the seller's key with a timeout so both sides are protected, priced in USD, BTC, or sats with live conversion, and any unused balance is refunded. Built for developers adding payments to LangChain, CrewAI, or any Python agent framework, with a published OpenAPI spec.
ecashuagent.com
Flarecatter Gas Scout
Stranded energy, found for bitcoin miners.
Searches public Texas Railroad Commission records for wells flaring gas within a chosen radius and plots them on a map, automatically leaving out any well with hydrogen sulfide for safety. A step-by-step guide covers the rest, from negotiating gas rights to sizing generators and setting up miners off-grid. Made for bitcoin miners and energy operators, it installs as a phone app and has an API for AI agents.
flarecatter.com
CredBitScore
A credit score for any Bitcoin address.
Paste in any Bitcoin address and get a 0 to 100 creditworthiness score built from public on-chain data: activity consistency, fund sources, spending behavior, and risk indicators. Holders can share their score through a private token without revealing the address itself. It's for crypto lenders and counterparties vetting who they deal with, and for holders proving their on-chain reputation, and it's also available as an API.
credbitscore.com
BitBuyback
What if those buybacks had been bitcoin?
Compares the stock buybacks of large public companies with what the same dollars would be worth today if they had bought bitcoin instead. Prices refresh hourly from CoinGecko and Yahoo Finance, and the table filters by sector and year. It's for investors and analysts weighing corporate bitcoin treasuries, and the data is open through a public API.
bitbuyback.net
Apps
Tesla Buyer's Radar
Buy now, or wait?
Gives a buy, wait, or don't-buy call for every Tesla model based on where it sits in Tesla's refresh cycle, with Polymarket prediction-market signals factored in. A quick finder turns your budget, seats, and new-or-used preference into one clear starting point, and a guide helps you check a used Tesla before paying. It's for shoppers who don't want to buy right before a refresh, and it's independent of Tesla.
teslabuyersradar.com
Bible for Bitcoiners
Scripture through the lens of sound money.
A full King James Bible reader with annotations that connect verses to sound-money principles, plus a daily verse and search. The annotations are community-driven and published over Nostr, so there's no account to create. It's written for Christian bitcoiners, and for bitcoiners curious about faith.
bibleforbitcoiners.com
RoamShield
Peace of mind for free-range parents.
One tap creates a timestamped Independence Shield Certificate, a PDF documenting that a child's independent activity is lawful and reasonable. Parents sign in with a passkey or Face ID, and no email is stored. It's for parents who want their kids to roam, play, and grow up free without worrying about a busybody call.
roamshield.replit.app
How I build
- Idea. Start from a real problem and a clear user.
- Design. Sketch the flow and the few screens that matter.
- Architecture. Pick the data, APIs, and hosting.
- Build. Build with Grok, Replit, and a team of AI agents that each own a step.
- Delivery. Ship to a live URL, often with an API other software and AI agents can call.
About
I'm Luke Carriere, an AI-native product builder based in Austin, Texas, with an MBA, an MSc in Digital Currency, and a BA in English. Before building on my own, I spent a decade growing startups and tech companies: I set up the US office of a European video SaaS startup as it grew several-fold, ran global marketing as a CMO, led adoption at a digital-currency company, and served as CFO of an early-stage startup.
Now I own the whole path from idea to production: product, design, architecture, build, and launch. Right now that's seven live apps, most of them in bitcoin, AI agents, and money.
Have a product idea, or a role where this fits?
Send me a note about what you're working on.