Your scout for
the resale economy.
Fetch on Demand.
LotScout watches the marketplaces you care about — eBay, Heritage, Catawiki, Bring a Trailer — and uses Claude to score every listing against your buying criteria. You only hear about the ones that matter.
Watch Claude evaluate real listings in real time.
Type what you're hunting. Pick your category. LotScout scores each result 1–10 and explains why. This is the same engine that powers production scouts.
Five layers. One scout.
A modular pipeline built on Anthropic's Building Effective Agents framework. Today: a workflow with an LLM-as-judge step. Tomorrow: full autonomy.
Trigger
Polls every 30 minutes — or down to near-real-time on Pro
Fetch
Official marketplace APIs. No browser hacks. No bans.
Reason
Claude scores each listing against your criteria 1–10
Memory
Dedupe, learn preferences, track outcomes
Deliver
Email, SMS, Slack, push — only the signal
Three prompts. One specialist.
LotScout doesn't use one prompt. It uses three — each with a precise job. This separation is what turns "generic LLM call" into "production-grade vertical AI."
The Builder
ROLE: You are a senior automation engineer building personal AI agents for marketplace monitoring. OBJECTIVE: Build a complete eBay scout with: - Schedule trigger every 30 min - Browse API fetch (official) - Claude scoring 1-10 - Dedupe via item ID memory - Email alerts for 8+ scores CONSTRAINTS: - Official APIs only - All keys via env vars - Code readable to non-devs - Error handling for rate limits - ADHD-friendly setup steps
The Scorer
ROLE: You are my personal shopping scout. Score listings 1-10. CRITERIA: - Item: "Vintage Speedmaster" - Price: "$1,500-$4,000" - Condition: "original parts" - Deal-breakers: "redial" OUTPUT (JSON): { score: 1-10, reason: "one sentence", red_flags: [...], green_flags: [...], action: "buy_now" }
The Messenger
ROLE: You are my deal alert formatter. Write a 5-second-scan message. FORMAT: 🎯 [Score]/10 — [Title] 💰 [Price] · [Condition] ✅ [Top green flag] ⚠️ [Top red flag] 👉 [Direct link] RULES: - Under 6 lines - No fluff - No extra emojis - Mobile-readable - Action-oriented
From free scout to autonomous agent.
A three-tier ladder. Start free. Upgrade when your hunting gets serious. Graduate to autonomy when you're ready to let LotScout act.
- 3 active searches
- eBay only
- Daily polling
- Email alerts
- Basic Claude scoring
- Unlimited searches
- eBay + Heritage + Catawiki + BaT
- Real-time polling (sub-15 min)
- SMS, Slack, Telegram, push
- Image-based AI condition checks
- Sold-listing comparables
- Custom criteria templates
- All Pro features
- Autonomous research & comparison
- Seller messaging (templated)
- Auto-watchlist & Best Offer
- Budget envelopes & approval gates
- Outcome learning loop
- Concierge onboarding
Eighteen months from scout to agent.
Shipping a workflow today. Growing into a true agent — as defined by Anthropic — by Q2 2027.
Scout MVP — Private Beta
Generation-1 workflow. eBay Browse API integration. Claude scoring. Email & SMS alerts. 50 hand-selected watch-collector beta users.
Public Launch — Free & Pro
Product Hunt. Hacker News. Hodinkee. Watch Crunch. Target: 5,000 free users, 500 Pro subscribers in 90 days.
Multi-Marketplace Expansion
Heritage Auctions, Catawiki, Bring a Trailer integrations. Image-based condition assessment goes live. Coin & trading-card vertical templates.
Agent Alpha — Closed Beta
Generation-3 autonomy enters alpha. Closed beta to top 50 Pro power users with strict budget envelopes and human approval gates.
LotScout Agent — Public Launch
True Agent tier launches publicly. Autonomous hunting, messaging, watchlisting, offering — within user-approved rules. The first vertical AI scout to graduate to full autonomy.
Get on the early access list.
We're rolling out invites to the watch collector beta first. Drop your email to skip the line and lock in lifetime founder pricing on Pro.