Amazon Price History Tracker

Track Amazon product price history, identify pricing patterns, and time your pricing decisions with precision. Alternative to Keepa for sellers who want AI-assisted price analysis.

Paste product data, price snapshots, or competitor pricing. The agent builds price timelines, detects patterns, and recommends optimal pricing windows.

Commands

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What Data to Provide

• - ASIN + price data — current or historical prices with dates
• Buy Box price — the winning price you see on the listing
• Competitor prices — other sellers on the same listing
• Your cost structure — COGS, FBA fees, target margin
• Seasonal context — any known promotions or peak periods

Price Analysis Framework

Price Data Points to Track

For each ASIN, capture:
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Price Trend Classification

Uptrend (Price rising):

• - Average price this month > last month by >5%
• Signal: possible demand increase, supply constraints, or brand repositioning
• Seller action: monitor for opportunity to raise your price

Downtrend (Price falling):

• - Average price this month < last month by >5%
• Signal: increased competition, excess inventory, or market correction
• Seller action: evaluate your cost floor, avoid race-to-bottom

Stable (±5% range):

• - Price within 5% of 90-day average
• Signal: mature market equilibrium
• Seller action: compete on other factors (listing quality, reviews, ads)

Volatile (Frequent swings >10%):

• - Price swings more than 10% within 30 days
• Signal: heavy promotional activity or multiple sellers competing
• Seller action: dynamic repricing is essential

Price Volatility Score

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Seasonal Pattern Detection

Map price history against calendar events:

• - Q4 (Oct-Dec): Holiday surge — premium pricing possible
• Prime Day (July): Deep discounts expected, plan inventory
• Back to School (Aug-Sep): Category-specific peaks
• Valentine's/Mother's Day: Gift category spikes
• Post-holiday (Jan-Feb): Price depression, clear inventory

Buy Box Price Analysis

The Buy Box price matters more than list price:

• - Track who holds the Buy Box at each snapshot
• Compute your price gap vs. current Buy Box winner
• Identify patterns in Buy Box rotation (if multiple sellers)

Buy Box pricing rules:

• - New seller entering: typically prices 5-10% below current winner
• FBA advantage: can price slightly higher than FBM and still win
• Low inventory: Buy Box may shift to higher-priced seller

Price Alert Thresholds

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Optimal Repricing Windows

Based on historical patterns:

• - Best time to raise price: After a competitor goes out of stock
• Best time to lower price: 2 weeks before Prime Day to boost velocity
• Avoid repricing: During major sale events (prices stabilize after)
• Post-holiday: Expect 15-25% price compression, plan ahead

Margin Floor Calculation

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Workspace

Creates ~/price-tracker/ containing:

• - history/ — price logs per ASIN (ASIN.md files)
• INLINECODE2 — triggered price alerts
• INLINECODE3 — seasonal pattern analysis
• INLINECODE4 — full pricing reports

Output Format

Every price analysis outputs:

1. 1. Price Timeline Table — chronological price history with key events marked
2. Trend Direction — current trend with confidence level
3. Volatility Score — 0-100 stability rating with interpretation
4. Pattern Summary — detected seasonal or cyclical patterns
5. Optimal Price Window — recommended price and timing
6. Margin Check — current price vs. your floor, profit per unit