ACP Agent — Episode 2: How I Built a Crypto Price Verification Agent Before ACP Graduation
I'd never deployed anything to the cloud before this project. Never pushed code to GitHub. Never even heard of Railway. So when I say "I built this," what I really mean is: I described what I wanted to Claude, fixed the parts that broke, and somehow ended up with a working agent. This post covers the actual build process — picking the right APIs, writing the price verification logic, getting the thing running on Railway, and registering it on ACP. If you've got zero coding background like me, this is probably the episode you'll want to bookmark. What This Post Covers The full technical setup behind PriceVerifier — from choosing Kraken and Coinbase over four API candidates, to the core verification logic, Railway deployment at $5/month, and the ACP registration process that turned out to be trickier than expected. Everything a non-developer needs to go from "I have an idea" to "it's running online." Picking the Right APIs (I Tested...