I Built an AI Agent That Shops the Internet For You (Claude Code Tutorial)

I gave an AI agent a goal and a budget — "a home studio under $2,500" — and it shopped the entire internet for me: live prices, real buyer reviews, real photos, and a sourced parts list under budget. No code. Here's exactly how I built it with Claude Code. This is a full build tutorial: the architecture idea (from Anthropic's own commerce-agents blueprint), the "PRD trick" that keeps an AI coding agent from drifting, wiring up OpenRouter as the brain and Decodo's Web Scraping API as the eyes, and deploying the whole thing live on Railway — all in one sitting, no prior coding experience required. Decodo web scraping API that pulls real Amazon and Walmart prices, ratings, and reviews at scale. The entire build runs on their free plan (2,000 requests/month, no credit card). When you're ready to scale, use code DEREK for 10% off any Web Scraping API plan: 👉 https://visit.decodo.com/KBGVYA 🎁 Free Starter Kit (the exact PRD template, my Claude Code build prompts, architecture diagram, deploy checklist, and review-summarizer prompt): 👉 https://www.skool.com/ai-automation-community-5707/free-build-kit-ai-shopping-agent-for-budget-parts-lists-openrouter-decodo?p=3d67d8a8 🔗 Links mentioned: - Anthropic's commerce-agents blueprint: https://github.com/anthropics/commerce-agents - Decodo Web Scraping API (code DEREK for 10% off): https://visit.decodo.com/KBGVYA - OpenRouter: https://openrouter.ai - Railway: https://railway.app ⏱️ TIMESTAMPS 0:00 - I built an AI agent that shops for you 0:30 - What this AI agent can actually do 1:15 - The blueprint: Anthropic's commerce-agents architecture 2:15 - The PRD trick — how I built this with Claude Code, no drifting 3:30 - The brain (OpenRouter) + the eyes (Decodo Web Scraping API) 5:30 - Claude Code builds the real backend 7:45 - Deploying live on Railway 8:45 - The feature that surprised me: the AI review summarizer 10:00 - Recap + what I'm building next If this saved you a week of research and building, a like or subscribe genuinely helps other people find it. Comment what you want this AI agent to research next — streaming setup? Editing PC? — and I'll build the top-voted one live on camera next. #ClaudeCode #AIAgent #VibeCoding #WebScraping #NoCode #BuildInPublic #AIAutomation