Different sources. Different formats.
Product details, prices and availability vary across marketplaces.
Ecommerce Data APIMarketplace data.
Marketplace data.
Built for your application.
Access structured ecommerce data through SellerApp APIs. Build analytics, research tools and custom dashboards.
Product listing
Insulated Water Bottle, 750 ml$39.004.6 rating
SellerApp API200 · JSON
- Product
- Insulated Water Bottle, 750 ml
- Price
- 39.00 USD
- Rating
- 4.6
Insulated Water Bottle, 750 ml
Price$39.00Rating4.6
Built and run by your team
Start with marketplace data.
Receive a structured API response.
Build your experience with the data.
- Marketplace
- SellerApp API
- Your app
The real problem
Getting data is only the beginning.
- Scattered data
- Ongoing work
- A simpler starting point
Collection becomes ongoing work.
Your team must collect, standardize, check and maintain the data before using it.
Start with data you can build on.
Use SellerApp APIs as your data starting point, then build your application.
Your team owns storage, business rules and application logic.
Give your engineers more room to build your product.
The data foundation
Understand the data you build with.
Four data types. Clear origins. Practical uses.
Observed data
From product listings to usable data.
Access product attributes, pricing, ratings and other marketplace information.
- Data
- Product details · Pricing · Ratings and reviews
- Use it for
- Product research, pricing monitors and catalog tools.
Read the listing
Structure the fields
Power product research
Multi-marketplace
Build across marketplaces without starting from scratch every time.
350M+product pages
45marketplaces
450data points
100+ecommerce companies
Amazon
Published API coverage
- Product
- Pricing
- Ratings & reviews
- Search
- Derived
- Account
Availability: confirm with API team
Explore Amazon APIs
- Product Details
/products - Product Reviews
/reviews - Best Sellers · Category Tree
/bestsellers·/categories - Keyword APIs
/keyword-search·/keyword-metrics·/keyword-research - Vendor Central · Advertising (authorized)
/vendor/*·/ads/*
Sales estimates come from Product Details. Availability signals: confirm scope.
Walmart
Published API coverage
- Product
- Pricing
- Ratings & reviews
- Search
Availability, derived, account: confirm with API team
Explore Walmart APIs
- Walmart Product
/walmart/products - Walmart Keyword Search
/walmart/keyword-search
Attributes, pricing, seller and rating signals. Review text, availability and estimates: confirm scope.
Lazada
Published API coverage
- Product
- Pricing
- Ratings & reviews
- Search
Availability, derived, account: confirm with API team
Explore Lazada APIs
- Lazada Product
/lazada/products - Lazada Keyword Search
/lazada/keyword-search
Price, seller, rating and competitor attributes. Other datasets: confirm scope.
Shopee
Published API coverage
- Product
- Pricing
- Ratings & reviews
- Search
Availability, derived, account: confirm with API team
Explore Shopee APIs
- Shopee Product
/shopee/products - Shopee Keyword Search
/shopee/keyword-search
Price, seller, fulfilment method and rating signals. Other datasets: confirm scope.
Best Buy
Published API coverage
Not yet in the published API reference.
All datasets: confirm with API team
Explore Best Buy APIs
Confirm available APIs with our teamTalk to the API team
Listed among SellerApp’s marketplaces. Endpoints and fields are confirmed with the API team.
| Marketplace | Product | Pricing | Ratings · reviews | Search | Availability | Derived | Account |
|---|---|---|---|---|---|---|---|
| Amazon | Documented | Documented | Documented | Documented | To confirm | Documented | Documented |
| Walmart | Documented | Documented | Documented | Documented | To confirm | To confirm | To confirm |
| Lazada | Documented | Documented | Documented | Documented | To confirm | To confirm | To confirm |
| Shopee | Documented | Documented | Documented | Documented | To confirm | To confirm | To confirm |
| Best Buy | To confirm | To confirm | To confirm | To confirm | To confirm | To confirm | To confirm |
In the published API referenceConfirm with the API team
From data to your application
See what your team can build.
Product details from Amazon
RequestInsulated Water Bottle, 750 mlAmazon product ID
Insulated Water Bottle, 750 mlAmazon product IDB0EXAMPLE01Choose a product
API response
Product Details · trimmed
{
"title": "Insulated Water Bottle, 750 ml",
"listing_price_new": 39.00,
"currency_code": "USD",
"ratings": 4.8
}Receive product fields
Your application
Your app · Product research
Insulated Water Bottle, 750 mlPrice$39.00Rating4.8 ★
Build a research view
Illustrative data and application examples.
SellerApp provides the data. Your team builds the experience.
What you can build
One data foundation. Multiple ecommerce products.
- Competitive intelligence
What are competitors doing before your customers notice?
- Data
- Competitor pricing, product comparisons, trends and availability signals.
- Outcome
- Competitive monitoring and market intelligence platforms.
ObservedConfirm scopeCompetitor watchObservedIllustrative application view.Your product$39.00Competitor A↓$36.50Competitor B$41.00Competitor C · availabilityConfirm scope - Product research
Which products and categories deserve attention?
- Data
- Attributes, demand estimates, ratings, reviews and category trends.
- Outcome
- Product opportunity research software.
ObservedEstimatedCategory: Kitchen & DiningEstimatedIllustrative application view.Top estimated demand · insulated bottles4.8★ - Pricing intelligence
How are prices changing across products and competitors?
- Data
- Current prices, price history where available, comparisons and movement.
- Outcome
- Pricing dashboards and monitoring applications.
ObservedYour applicationPrice movementYour applicationIllustrative application view.Your price vs competitor median−6% this week - Review intelligence
What are customers repeatedly saying about products?
- Data
- Ratings, written reviews and review trends. Sentiment is derived by your app.
- Outcome
- Voice-of-customer analytics and product improvement.
ObservedYour applicationVoice of customerYour applicationIllustrative application view.keeps drinks coldpraiseeasy to cleanpraiselid leaksissueRising complaint this monthLid - Sales and demand
How is marketplace demand evolving?
- Data
- Authorized historical sales, sales estimates, trends and forecasting inputs.
- Outcome
- Demand forecasting and product planning.
AuthorizedEstimatedDemand trendEstimatedIllustrative application view.Historical · forecast (your model)Trending up - Inventory and availability
Where are availability gaps creating opportunities?
- Data
- Availability, stockout signals and geographic coverage where available.
- Outcome
- Inventory monitoring and distribution intelligence.
Confirm scopeAvailability by areaConfirm scopeIllustrative application view.Area 1In stockArea 2Out of stockArea 3In stockPlatforms and geographiesConfirm scope - Custom business intelligence
What if your team needs answers standard dashboards can’t give?
- Data
- Multiple datasets in your warehouse, your metrics, your BI.
- Outcome
- Enterprise reporting and analytics.
ObservedAuthorizedYour applicationYour warehouse → BIYour applicationIllustrative application view.Product + pricing tablesSellerAppAuthorized account reportsSellerAppYour internal sales and costsYour dataContribution margin by categoryYour metric
Specifications
Know how it works before you commit to building with it.
Documented in the published referencePending verification with the API team
Authentication
DocumentedRequests send client-id and token headers with SellerApp-issued credentials. Keep them server-side.
--header 'client-id: YOUR_CLIENT_ID' --header 'token: YOUR_TOKEN'
To confirm: how seller-account authorization works for Vendor Central and advertising data.
Requests
Documented- Base URL
https://api.sellerapp.com/sellmetricsv2+ endpoint geosets the Amazon marketplace- Identifiers such as
productIdsorkeyword - Other marketplaces use their own path, e.g.
/walmart/products
To confirm: identifiers per request and pagination per endpoint.
Responses
DocumentedJSON. Product Details groups fields into product_attributes, price_details, fee_details, product_potential and ratings. Other endpoints have their own schema.
To confirm: full field lists and types per marketplace.
Error handling
Technical specification pending verification. Error formats, status codes and retry guidance are confirmed with the API team.
Usage limits
Technical specification pending verification. Rate limits, quotas and throttling depend on your plan.
Freshness
Technical specification pending verification. Update frequency and observation timestamps are confirmed per dataset and marketplace.
Historical data
Technical specification pending verification. Availability, retention and access conditions are confirmed per dataset.
Scalability
DocumentedSome APIs use an asynchronous pattern: submit a bulk request, get a report id, then fetch the report, e.g. /keyword-research/bulk and /keyword-research/bulk/report.
To confirm: which other datasets support bulk or report-based retrieval.
SDKs and examples
DocumentedRequest examples are in the Postman references. We don’t list SDKs because none are published.
For every team
One data foundation. Different teams. Different decisions.
Developers
Build customer-facing software features.
- Uses
- Product, pricing, review and keyword endpoints
- Delivers
- Features inside your SaaS product
Data engineers
Connect ecommerce data to pipelines and warehouses.
- Uses
- Scheduled pulls, bulk reports where supported
- Delivers
- Tables in your warehouse
BI analysts
Build dashboards and custom reporting.
- Uses
- Joined product, pricing and account data
- Delivers
- Dashboards your business reads
Data scientists
Create models from observed and derived datasets.
- Uses
- Observed data plus SellerApp estimates as features
- Delivers
- Forecasts and predictive models
Product teams
Build research and intelligence capabilities.
- Uses
- Product research and competitive datasets
- Delivers
- New differentiated features
Business leaders
Use the resulting analytics to decide.
- Uses
- Outputs your teams build
- Delivers
- Decisions on assortment, pricing and growth
Customer proof
Real integrations. Real business applications.
Quantum NetworksPricing and margin
- ChallengeAssessing brand pricing and margins during product onboarding.
- Data usedPricing-related intelligence through SellerApp’s margin calculator module.
- BuiltMargin assessment inside their onboarding process.
- OutcomeA more efficient onboarding and product-assessment workflow.
KeploReviews and keywords
- ChallengeUnderstanding customer feedback and search behaviour.
- Data usedReview and keyword intelligence.
- BuiltCustomer feedback and search-related applications.
- OutcomeReview and keyword insights built into their product.
FBAmultitoolSales estimates
- ChallengeSupporting forecasting and inventory decisions.
- Data usedSales estimate data.
- BuiltForecasting and inventory-related features.
- OutcomeUsers plan inventory with sales estimates.
DelivererProduct attributes
- ChallengeKeeping catalog data complete and structured.
- Data usedProduct attribute intelligence.
- BuiltCatalog data workflows.
- OutcomeMore structured catalog data handling.
Source: SellerApp API Solutions and API Case Study documents. Each customer used a different API category. No figures are claimed.
FAQ
Questions developers and buyers ask
What data is available through SellerApp Ecommerce Data API?
Product data (attributes, pricing, fees, ratings, reviews, rank, categories), keyword and search data, sales estimates, listing-quality scores, and authorized Vendor Central and advertising reports. Coverage varies by marketplace.
Which ecommerce marketplaces are supported?
The published reference documents Amazon, Walmart, Lazada and Shopee endpoints. SellerApp lists further marketplaces; confirm the ones you need.
Are datasets consistent across marketplaces?
The call pattern is consistent. Fields differ by marketplace, so map them per source.
Can I retrieve historical ecommerce data?
Confirm with the API team. Historical availability differs by dataset.
How frequently is the data updated?
Confirm with the API team per dataset and marketplace.
What is the difference between observed and estimated data?
Observed data is collected from marketplaces, such as a listing price. Estimated data is modelled, such as sales estimates, and should be shown as an estimate.
Can I access seller account data?
Yes, where the account owner authorizes it, for example Vendor Central and advertising reports. There’s no access to private account data without authorization.
How is seller authorization handled?
Confirm the authorization flow with the API team for each account dataset.
Can I combine multiple datasets?
Yes. Your application joins records by identifiers such as ASIN, normalizes fields and applies your rules.
What response format does the API use?
JSON over authenticated REST requests.
Are there API usage limits?
Yes, limits depend on your plan and are confirmed during evaluation.
Does SellerApp support bulk requests?
Some APIs, such as Keyword Research Bulk, use a submit-then-fetch report pattern. Confirm for other datasets.
Can I integrate the data into a commercial SaaS product?
That’s set in your agreement. Confirm your use case with the API team.
Can data be stored or redistributed?
Storage, caching and redistribution terms are set in your agreement.
How is API pricing determined?
By use case, marketplaces, datasets, volume, refresh frequency, history and support. Build a requirements brief.
Can I test the API before purchasing?
Ask the API team about evaluation access.
What support is available?
Technical guidance within an agreed support scope. Talk to us about what your team needs.
What happens if a marketplace changes its data access policies?
Confirm with the API team how changes are communicated and handled.
How do I handle missing or delayed data?
Log response status, retry transient failures with backoff, store timestamps and show users when data was last observed.
How does SellerApp differ from building directly on marketplace APIs?
Marketplace APIs mainly cover your own authorized account. SellerApp adds structured product, competitor, keyword and estimate data across marketplaces.
Which datasets support forecasting and predictive analytics?
Sales estimates, authorized sales history and Vendor Central forecasting reports are typical inputs. Your model runs in your application.
Does the API provide raw data, derived metrics, or both?
Both. Observed data, plus derived metrics such as sales estimates, relevancy scores and listing-quality scores.
Talk to an API specialist
Your next ecommerce product starts with the right data.
Tell us what you’re building, which marketplaces matter, and the data your application needs. We’ll help you evaluate SellerApp’s Ecommerce Data API for your use case.
- Datasets and marketplace coverage
- Freshness, history and volume
- Access, pricing and support scope