UCP Radar tech stack
Make your product feed visible to AI shopping agents
The stack
“Billing runs on Stripe: five tiers, monthly and annual, coupons, webhooks. We expected it to be the ugliest part of the build. It's now the part of the product we think about least.” — the maker, Aug 2026 ↗
“A 35,000-product catalog only makes sense to optimize at batch pricing. Without it we'd either be losing money on large merchants or turning them away.” — the maker, Aug 2026 ↗
“FastAPI, Postgres, Redis and a Celery worker all run in one place, and env vars are the only config we touch. The same setup on AWS is a week of DevOps work before you ship anything. On Railway it took an afternoon, and we've barely looked at it since.” — the maker, Aug 2026 ↗
“We stayed for the preview deploys. Every change gets a real URL we open and test before it reaches a paying merchant, so nothing ships on the assumption that it works. Push to main and production is live in about a minute.” — the maker, Aug 2026 ↗
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