Keepa alternatives for Walmart, eBay, and beyond (2026)

Keepa is the gold standard for Amazon price history. If you sell on Amazon or arbitrage from Amazon, Keepa is excellent. The problem comes when your business depends on non-Amazon retailers: Walmart Marketplace sellers, multi-channel arbitrage operators, eBay resellers, dropshippers comparing 6 retailers per SKU. Keepa was never built for that.

This guide compares the 6 tools that compete in the price-tracking category in 2026. Pricing is in USD, current as of May 2026, and reflects publicly listed plans.

At-a-glance comparison

Tool	Amazon	Walmart	eBay	Target / Lowe's / HD	API	Free tier	Entry price
retailerapi	Phase 3	Full (50M+ items)	Yes	On-demand enrichment	Yes (REST + MCP)	1,000 tokens, no expiration	$49/mo
Keepa	Full (3B+ items)	Limited	No	No	Yes (separate billing)	None	€19/mo
CamelCamelCamel	Full	No	No	No	No	Yes (free with ads)	Free
PriceBlink	Yes	Yes	Yes	Yes	No	Browser ext only	Free
ShopSavvy	Yes	Yes	Yes	Some	Yes (B2B contract)	Mobile app free	Custom
Capital One Shopping	Yes	Yes	Yes	Yes	No	Free (Capital One acct)	Free

The pattern: Keepa wins on Amazon depth; everything else trades depth for breadth. Pick based on which retailer matters most to your workflow.

Tool-by-tool deep dive

Keepa

The 2010 OG. Keepa indexes 3+ billion Amazon products and stores price history going back over a decade. Their charts are the industry reference. They sell programmatic access via a token-billed API (€19/mo entry, scaling to €4,499/mo for 4,000 tokens/min). They run a Chrome extension that overlays Amazon product pages with the price-history chart.

Best for: anyone whose primary retailer is Amazon. Sellers, arbitrageurs, brand monitors, Amazon-only repricers.

Limits: Walmart coverage is shallow and not the focus. eBay is unsupported. Cross-retailer comparison (Walmart vs Amazon vs Target on the same SKU) is not their product.

CamelCamelCamel

Older than Keepa, more constrained. Free with display ads on the price-history pages. Amazon-only. No API. The product is the public web page at camelcamelcamel.com/product/. They explicitly throttle their crawlers for low-popularity items, so charts can show "no recent prices" if a SKU has low traffic.

Best for: consumers checking a single Amazon product before buying. Arbitrage hobbyists who don't need API access.

Limits: Amazon-only. No programmatic access. Charts can be stale on long-tail products.

PriceBlink

Browser extension that overlays comparison results on Amazon, Walmart, Target, and most major retailers. Pulls from Google Shopping plus its own crawler. Free. No API. Owned by Sovrn since 2019.

Best for: consumer price-checking while shopping. Casual sellers comparing 2 to 3 sources.

Limits: No API. Mobile experience is weak. Data freshness depends on PriceBlink's crawl cadence, which is opaque.

ShopSavvy

Started in 2008 as a barcode-scanning mobile app. Now sells ProductCloud, a B2B data API used by retailers, brands, and academic researchers. 70,000+ retailers indexed, millions of products, custom pricing. Mobile app remains free for end-users.

Best for: enterprise buyers who need cross-retailer data at scale and have procurement budget. Academic research.

Limits: No public pricing. No self-serve API tier. Sales-led contracts only.

Capital One Shopping (formerly Wikibuy)

Free browser extension and web tool acquired by Capital One in 2018. Compares prices across major retailers and shows historical lows. Excellent UX. No API.

Best for: consumers running Capital One cards (no signup friction) who want a single comparison overlay.

Limits: No API. Owned by a financial-services giant whose roadmap is not aligned with developer use cases.

retailerapi

Built in 2026 specifically for the gap Keepa leaves. Walmart 50M+ products live, with Amazon, eBay, Target, Best Buy, Lowe's, and Home Depot enriched on demand from a single Google Shopping SERP scrape per query. Token-billed API plus an open-source MCP server that drops into Claude Desktop, Claude Code, and Cursor. Free tier is token-limited (1,000 lookups, no expiration) rather than time-limited.

Best for: developers building cross-retailer tooling, Walmart Marketplace sellers, multi-channel arbitrage operators, AI agents that need product data.

Limits: Amazon coverage ships in Phase 3 (no Associates dependency). Cross-retailer history accumulates from first lookup forward, so freshly indexed products start with empty charts.

Picking by use case

You sell on Amazon: Keepa. Don't overthink it. Their data depth and price history are unmatched.

You sell on Walmart Marketplace: retailerapi. Walmart is our primary surface, with 50M+ products already indexed via the same backend that powers EC's seller tools.

You build AI agents for shoppers: retailerapi MCP. Drop npm i @retailerapi/mcp into your agent's config and you get six product-data tools immediately. No other tool in this comparison ships an MCP server.

You're a consumer: Capital One Shopping or PriceBlink. Both are free and cover the major retailers. PriceBlink has a slightly better Walmart experience.

You need bulk data for academic or enterprise research: ShopSavvy ProductCloud. Their sales team will scope a contract.

You arbitrage across 4+ retailers per SKU: retailerapi. Keepa won't show you the Walmart, Lowe's, or Home Depot price; CCC won't show you anything outside Amazon. The cross-retailer grid on every retailerapi product page is the point.

Pricing math

For a developer building a tool that hits 100,000 product lookups per month:

• Keepa at the 60-token-per-minute tier (€129/mo, ~155,000 tokens per 30 days) covers the call volume with room. Around $151/mo at current FX.
• retailerapi at the 60-token-per-minute tier ($119/mo, 2,592,000 tokens per 30 days) covers 17x the call volume. Around 21% cheaper than Keepa at FX-equivalent.
• CCC, PriceBlink, Capital One Shopping are free but have no programmatic access. They do not satisfy a developer use case.
• ShopSavvy requires a custom sales conversation; expect a 4-figure MRR floor.

Try retailerapi free

1,000 free tokens, no expiration. Run your first lookup in under 60 seconds. If you outgrow the free tier, paid plans start at $49 per month and scale to $4,209 per month for 4,000 tokens per minute (the highest tier in the category, matching Keepa's top tier at 21% lower cost).

See real product pages: example pressure cooker, example UPC lookup.