Resellers and arbitrage businesses need to compare prices across Amazon and Walmart at scale to find profitable spreads. Manual checking limits the number of products monitored and means opportunities are missed. The best search API for resellers must return pricing data from both platforms, support high-volume automated monitoring, and cost less than the margins it helps capture.
Scavio wins for resellers because it covers both Amazon and Walmart under one API key at $0.005/query. Two queries per product (one per platform) costs $0.01 per price comparison, enabling profitable monitoring at scale.
Full Ranking
Scavio
Resellers comparing Amazon and Walmart prices at scale
- Both Amazon and Walmart in one API
- $0.01 per price comparison (2 queries)
- Structured pricing data
- 500 free credits for testing
- Real-time pricing from live search
- Pricing from search results, not direct product API
- No historical price tracking built in
Keepa
Amazon price history tracking
- Detailed Amazon price history
- Buy Box tracking
- Price drop alerts
- Amazon only, no Walmart
- Token system can be confusing
- No cross-platform comparison
Rainforest API
Detailed Amazon product data
- Comprehensive Amazon data
- Reviews, BSR, pricing
- Good documentation
- Amazon only
- $0.049/request
- No Walmart coverage
SerpAPI
Google Shopping price comparison
- Google Shopping results
- Multiple engines
- Walmart search available
- Expensive per query
- Active DMCA lawsuit
- Complex for simple price checking
Jungle Scout
Amazon product research for FBA sellers
- Amazon-specific tools
- Profit calculator
- Trend data
- Amazon only
- UI-focused, limited API
- Not for real-time arbitrage
Side-by-Side Comparison
| Criteria | Scavio | Runner-up | 3rd Place |
|---|---|---|---|
| Amazon Pricing | Yes (search-based) | Yes (historical + live) | Yes (product API) |
| Walmart Pricing | Yes | No | No |
| Cost per comparison | $0.01 | ~$0.002 (Amazon only) | $0.049 (Amazon only) |
| Cross-Platform | Yes (one API) | No | No |
| Real-Time Pricing | Yes | Yes | Yes |
| Free Tier | 500/mo | None | None |
Why Scavio Wins
- Both Amazon and Walmart under one API key. A single price comparison costs $0.01 (one query per platform). No other API covers both platforms at this price.
- Structured pricing data from search results includes product title, price, rating, and URL for both platforms in a consistent format.
- 3,500 price comparisons per month on the $30 plan is enough for a catalog of 100 products checked hourly during business hours.
- Real-time pricing from live search means you see the current price, not a cached value from hours ago. Critical for time-sensitive arbitrage.
- 500 free credits per month let you build and test your price monitoring pipeline before committing to a paid plan.