Walmart API · Offers & Seller Data

Live Walmart Buy Box, 1P vs 3P seller data, and inventory signals in the US, Canada and Mexico, tagged cleanly so your repricing engine never miscompares first-party retail and marketplace offers

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· Free tier available · Plans from €79/mo

Coverage

North America & Mexico

Delivery

Webhooks or Polling

Integration

One API Endpoint

Schema

Complete Walmart Marketplace Data

One unified schema covering Walmart's first-party retail and third-party marketplace. Pricing, sellers, and inventory in one structure.

View Full Schema

content

13 fields

Sourcesource

Product Namename

Brandbrand_name

GTINgtin

Product IDproduct_id

URLurl

Image URLimage_url

Currencycurrency

…

offers[]

12 fields

Positionposition

Seller Nameseller_name

Marketplacemarketplace_name

Seller Typeseller_type

Seller Ratingseller_rating

Seller Rating Countseller_rating_count

Priceprice

Shippingshipping

…

walmart fields

16 fields

Is Directis_direct

Fulfillmentfulfillment

Imagesimages

Categoriescategories

Currencycurrency

Seller Urlseller_url

Shippingshipping

Urlurl

…

Developer Experience

One Endpoint.
Multiple Sources

Walmart is a native integration within the kwery API. No separate implementation required.

Walmart data is available through the same kwery API endpoint as all other sources. Specify source: "walmart" and country us, ca or mx. Query by term, id or gtin. Same webhook delivery, same audit trails, same reliability guarantees.

Stream results as they complete. Same pipeline as your Amazon and Google Shopping jobs.

View API Reference

POST · api.kwery.co/stream

200 OK

# Submit a job querying Walmart US
curl -X POST "https://api.kwery.co/stream" \
  -H "Authorization: Bearer $KWERY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "source": "walmart",
    "country": "us",
    "key": "gtin",
    "values": ["00074471017201"],
    "callback_url": "https://your-app.example.com/webhook"
  }'

Data Quality

Know What Your Pricing Logic Is Acting On

Quality and provenance signals help you assess product matching, result confidence, and request history before data enters production workflows.

Trust Score

A compact quality signal helps your pipeline assess product identity, completeness, price integrity, and freshness together.

Check quality before pricing logic.

{
  "source" walmart,
  "trust" {
    "score" 0.92,
    "detail" {
      "identity" 1.00,
      "completeness" 0.89,
      "price_integrity" 0.95,
      "freshness" 0.75
    }
  }
}

Match Confidence

See how confidently the request was resolved to the intended Walmart product before using its offers downstream.

Surface ambiguous matches for review.

{
  "source" walmart,
  "key" gtin,
  "value" 4006381333962,
  "match" {
    "product_id" 123456789,
    "confidence" 1.00,
    "ambiguous" false
  }
}

Audit Trail

Job identifiers and observation timestamps let your team connect a delivered result to the request that produced it.

Keep data-driven decisions traceable.

{
  "job_id" 01J3R5T7Z9,
  "source" walmart,
  "country" de,
  "observed_at" 2026-09-24T09: 12: 04Z,
  "status" completed,
  "result_count" 1
}

Response Fields

What Every Walmart Offer Carries

Query by term, id or gtin in the US, Canada and Mexico. Every offer comes back with the fields you need to compare like with like.

View Documentation

Condition (new or used) and is_direct, which separates Walmart itself from marketplace sellers.
Seller name and id, shipping and the landed total.
A product that exists but has no purchasable offer is returned as the product with offers_count 0, not as "not found".
The buybox field is the lowest-priced offer across all conditions; filter offers yourself for new or Walmart-direct comparisons.

Global Coverage

Walmart US, Canada and Mexico

Query Walmart's marketplaces in the US, Canada and Mexico from one unified API. Both first-party retail pricing and marketplace offers covered.

3 Markets

usUnited States

caCanada

mxMexico

Self-Serve

One Credit. One Resolved SKU

Product matching, product page, and offers, billed as a single credit.

ON WALMART API: 1 CREDIT = 2 SKUs (SEARCH + PRODUCT + OFFERS, MATCHED, EACH)

Product Matching

Identify the correct product within the requested source using GTIN or URL.

Product Page

Title, brand, specs, images, and category, fully normalized.

Offers

Every seller, price, condition, and shipping option in the offer section.

Entry Price

€79 / mo

Included

10k credits / mo

Included Usage

20k Walmart SKUs / mo

Get API Key View Pricing

Free tier available · 1,000 one-time credits, no credit card required.

Enterprise

Need Custom Pricing, SLAs, or Support?

Dedicated volume pricing, custom SLAs, and direct engineering support for teams running millions of SKUs.

Talk to Sales

Use Cases

What Teams Build With
Walmart Data

One endpoint feeds the systems engineering teams ship to production, repricing, monitoring, sourcing, and intelligence.

Featured Offer Repricing

React to Featured Offer losses by streaming winner changes per item into your repricing engine. WFS (Walmart Fulfillment Services) listings win it roughly 3.4x more often than seller-fulfilled offers at the same price point.

See how Walmart repricing works

Seller Intelligence

Track WFS vs. seller-fulfilled competition, ratings, and offer counts to model competitive pressure per SKU.

See WFS vs. seller-fulfilled intelligence

MAP & Brand Protection

Monitor seller identity, observed offer price, shipping, and fulfillment context across Walmart Marketplace offers.

See how MAP monitoring works

Building an AI Shopping Agent?

Support

Common Questions

Answers to Walmart-specific questions about marketplace data, sellers, and integration.

Browse all FAQs

Yes. Every offer is tagged with seller type (1P or 3P) and fulfillment method (WFS or seller-fulfilled). Your repricing logic can treat them as separate competitive sets.

The buybox field is the lowest-priced offer across all conditions, with its seller and price. Filter offers yourself (condition, is_direct) for new or Walmart-direct comparisons.

Yes. The Walmart source accepts three keys: term, id and gtin.

Live on every request. Streaming jobs deliver each result as soon as it's collected.

United States (country: us), Canada (ca) and Mexico (mx). Same schema in all three, prices in local currency (USD, CAD, MXN). Query by term, id or gtin.

"not found" means the marketplace does not know the product. A product with no purchasable offer right now is a normal result with offers_count 0 and buybox null. Per-result fields in the docs.

Yes. Use condition, is_direct, total and trust.flagged_offers. The buybox field follows each marketplace's own rule (on Walmart it is the lowest-priced offer of any condition), not what qualifies for you. Buybox in the docs.

More Marketplaces