E-commerce Seller Tools

Tools for sellers on marketplaces such as Etsy, Amazon and eBay: product research, marketplace keyword research, listing optimisation and competitor tracking. Every tool below is measured against the same criteria, in the same order. The search here is the marketplace's own: keyword research and rank tracking for a website on the open web sit under SEO Tools.

11tools

Helium 10

AI featuresMCP-ready

Price From $99 / month, billed yearly

Not rated yet

Amazon seller suite for product and keyword research, listings, ads and profit tracking, reaching Walmart and TikTok Shop too.
Strengths
- Chrome Extension covers Amazon, Walmart and TikTok Shop on Platinum and above
- Yearly billing lowers Platinum from $129 to $99 a month
- Diamond includes the Helium 10 MCP for up to 1,000 calls
- Diamond allows up to 5 additional users and 10 Seller Central accounts
Limitations
- Diamond charges a 2% management fee on ad spend run through Helium 10 Ads
- Platinum tracks 20 ASINs and 3 markets in Market Tracker
- Helium 10 Ads and the Helium AI agent are Diamond features
- Enterprise starts at $1,499 a month, billed annually
Visit site
What Sells Next

AI features

Price Free

Not rated yet

Find Etsy product ideas, check market evidence and plan your next make.
Strengths
- Free plan with daily keyword lookups and idea checks, no card needed
- Idea checks show comparable Etsy listings, asking prices and buyer signals
- Fee and profit calculator and build guides sit next to the research
- The Etsy shop connection is optional and read-only
Limitations
- The site names Etsy as the only marketplace
- Listing changes have to be copied into Etsy by hand
- Competitor sales and revenue are estimates
- The site does not state the company or country behind the tool
Visit site
SellerApp

AI features

Price Freemium free; Pro from $99 / month

Not rated yet

Amazon seller platform for advertising automation, product and keyword research, listing quality and profit tracking.
Strengths
- Freemium plan with no credit card required
- Advertising automation and research in the same account
- Listing Quality Index analysis of Amazon listings
- Documented Amazon data APIs, starting with 100 free tokens
Limitations
- Yearly prices are not shown, only a stated 50% saving
- Smart is discounted only for the first 3 months, then $250 a month
- API pricing is on request
- Agencies pay 0.5% to 2.5% of Amazon ad spend on top of the base fee
Visit site
Sale Samurai

Price Free

Not rated yet

Etsy keyword research, competitor tracking and listing A/B tests, with a free Chrome extension.
Strengths
- Freemium plan with no payment method required
- 3-day free trial of the paid features
- A/B tests for titles, photos and prices run on live Etsy traffic
- The extension works in Chrome, Edge and Brave
Limitations
- Freemium allows 20 keyword searches and 10 listing analyses a month
- Competitor sales are estimates
- Etsy is the only marketplace named
- A monthly plan has to be cancelled at least 24 hours before the next due date
Visit site
Alura

AI featuresMCP-ready

Price Free

Not rated yet

Etsy research, AI listing optimisation, profit tracking and marketing in one workspace.
Strengths
- Profit calculator is part of the free plan
- API and MCP access on every plan, including Free
- Pinterest, email marketing and Etsy Ads management on Growth and above
- 7-day money-back guarantee: a refund on request within 7 days of a payment
Limitations
- Free plan is limited to 5 keyword and product searches a day
- AI features draw on a monthly credit allowance
- Only Professional connects more than one Etsy shop
- Etsy is the only marketplace named
Visit site
EverBee

MCP-ready

Price Free

Not rated yet

Estimated sales and revenue for Etsy listings and shops, in a web app, a Chrome extension and Claude.
Strengths
- Free Hobby plan with no credit card required
- Etsy data can be queried from Claude through an official MCP server
- API calls are charged per returned record, and an empty search costs nothing
- Free Etsy fee calculator without sign-up
Limitations
- Hobby plan is limited to 10 keyword searches
- Sales and revenue figures for other shops are estimates
- Etsy is the only marketplace named
- The pricing page shows paid plans billed annually
Visit site
SmartScout

AI featuresMCP-ready

Price From $29 / month, billed yearly

Not rated yet

Amazon market research by product, brand, seller and subcategory, with keyword tools, a Chrome extension and TikTok Shop data.
Strengths
- Yearly billing lowers Basic from $49 to $29 a month
- Brand, seller and subcategory databases for category-level research
- TikTok Shop research on every plan
- Business includes MCP access with 1,000 monthly credits
Limitations
- Each paid plan includes 1 user, with additional users listed at $49 each
- API, data lake and Ad Spy are add-ons priced through sales
- Seller and subcategory data start on Business at $299 a month billed monthly
- The terms of use state a termination takes effect 14 days after notice
Visit site
Marmalead

AI features

Price $19 / month

Not rated yet

Etsy keyword research with seasonality, forecasts, listing grades and an AI shop coach.
Strengths
- Keyword data includes 12 months of seasonality and a 3-month forecast
- Lifetime plan for a single payment of $300
- Several Etsy shops can be connected to one account
- Course library included with the subscription
Limitations
- No free plan or trial named on the pricing page
- The site names no competitor tracking
- Etsy is the only marketplace named
- Payments for the current billing period are not refunded on cancellation
Visit site
Jungle Scout

AI featuresMCP-ready

Price From $29 / month, billed annually

Not rated yet

Amazon seller toolkit for product and keyword research, supplier search, listings, reviews and sales analytics.
Strengths
- Starter costs $29 a month on annual billing
- Supplier Database from Growth Accelerator up
- Extra seats at $49 a month or $459 a year on Growth Accelerator and Brand Owner
- 7-day money-back guarantee on standard Catalyst plans
Limitations
- No free trial
- Starter is limited to 1 user and has no rank tracker or listing analyzer
- Some Catalyst features are limited to the US marketplace
- Cobalt pricing is not published
Visit site
ZonGuru

AI featuresMCP-ready

Price From $124 / month, billed annually

Not rated yet

Helix scores Amazon listings for AI and A9 search, rewrites them, publishes the copy and keeps monitoring.
Strengths
- MCP access included on every plan
- Publishes rewritten listings to Amazon through Seller Central
- One-off credits at $49 each for sellers without a plan
- Managed-listing data is held for 60 days after cancelling
Limitations
- Covers Amazon US, UK, Canada and Australia only
- Seller Central connection requires an Amazon Professional selling plan
- Plan credits reset monthly and do not roll over
- Scoring and monitoring require a paid plan
Visit site
eRank

AI features

Price Free

Not rated yet

Etsy keyword research, competitor tracking and listing audits, with a free plan.
Strengths
- Free plan with no time limit and no card needed
- Paid plans start at $5.99 a month, or $65.99 billed annually
- Keyword data comes with 15 months of search history
- Expert connects up to 100 Etsy shops in one account
Limitations
- Free plan is limited to 5 keyword lookups and 5 listing audits a day
- Competitor sales are estimates
- Shop connections and competitor tracking cover Etsy only
- The site names no public API
Visit site

E-commerce Seller Tools

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Strengths

Limitations

Direct Comparisons