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Walmart Category Market API

REST API and MCP service documentation generated from server-side API definitions. Responses shown here are the direct payload returned by each API execution.

API selector
Walmart Marketplace Intelligence

API overview

Research Walmart category trees, search category names, and retrieve category market reports through three governed read-only operations.

Try this API
Endpoint
https://api.nexscope.ai/api/skill-api/v1/skills/walmart-category-market/run
MCP method
nexscope_walmart_category_market

Authentication

All run endpoints require a user API key. Send it as a bearer token in the Authorization header.

Authorization: Bearer nk_xxxxxxxxxxxxxxxxx
Missing or invalid API keys return an authentication error. Manage keys from .
POSThttps://api.nexscope.ai/api/skill-api/v1/skills/walmart-category-market/run

Run an API

Send a JSON request body using the parameters described below.

Slugwalmart-category-market
HeadersAuthorization: Bearer nk_...
Content-Type: application/json
Request bodyAPI-specific JSON object.
Response bodyDirect API response payload. No data/result wrapper is added.

Status codes

CodeDescription
200API executed successfully. Body is the direct response payload.
400Request JSON or required API parameters are invalid.
401API key is missing, invalid, or cannot be matched to a user.
5xxAPI execution or upstream service failed.

Example request

curl -X POST https://api.nexscope.ai/api/skill-api/v1/skills/walmart-category-market/run \
  -H "Authorization: Bearer nk_xxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{   "operation": "tree" }'
All categories/ Walmart Marketplace Intelligence
POSThttps://api.nexscope.ai/api/skill-api/v1/skills/walmart-category-market/run

Run this API

Send a JSON request to execute this API and receive the direct response payload.

Open tester

Endpoint

MethodPOST
Pathhttps://api.nexscope.ai/api/skill-api/v1/skills/walmart-category-market/run
AuthBearer API key
Content-Typeapplication/json

Request body

operation: tree

NameTypeRequiredDescription
operationstringrequired
Operation: tree, searchByName, or marketReport
Constant: tree

operation: searchByName

NameTypeRequiredDescription
operationstringrequired
Operation: tree, searchByName, or marketReport
Constant: searchByName
namestringrequired
Category name required by searchByName
Minimum length: 1

operation: marketReport

NameTypeRequiredDescription
operationstringrequired
Operation: tree, searchByName, or marketReport
Constant: marketReport
nodePathstringrequired
Underscore-separated category node path required by marketReport
Pattern: ^\d+(?:_\d+)+$

Request example

{
  "operation": "tree"
}

Response body

NameTypeRequiredDescription
operationanyrequired
Operation value used by this API operation.
valueanyrequired
Value value used by this API operation.
requestConsumedintegerrequired
Request consumed value used by this API operation.
Minimum: 0

operation: tree

NameTypeRequiredDescription
operationstringoptional
Operation value used by this API operation.
Constant: tree
valuearrayoptional
Value value used by this API operation.

operation: searchByName

NameTypeRequiredDescription
operationstringoptional
Operation value used by this API operation.
Constant: searchByName
valuearrayoptional
Value value used by this API operation.

operation: marketReport

NameTypeRequiredDescription
operationstringoptional
Operation value used by this API operation.
Constant: marketReport
valueobject | arrayoptional
Value value used by this API operation.

Response example

Direct response payload. No extra wrapper is added.

{
  "operation": "tree",
  "requestConsumed": 5,
  "value": [
    {
      "Name": "Personal Care",
      "NodeId": "1005862"
    }
  ]
}

Responses

CodeDescription
200API executed successfully. Body is the direct response payload.
400Request JSON or required API parameters are invalid.
401API key is missing, invalid, or cannot be matched to a user.
5xxAPI execution or upstream service failed.

Data source, freshness, and limitations

Source, freshness, coverage, rate limits, and estimation notes are not specified in this API definition unless they appear in the request or response field documentation above. Do not assume official marketplace data or real-time freshness when it is not explicitly documented.

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Walmart Product Detail API

Query Walmart product details through WallySmarter, including pricing history and sales trends. View request parameters, response fields, and MCP usage.

Walmart Search API

Search Walmart product listings by keyword, category, price range, and other filters. Review request and response fields.

MCP

Use the MCP endpoint when an agent needs to discover and call API tools with JSON-RPC.

GET /api/skill-api/v1/mcp
POST /api/skill-api/v1/mcp
Authorization: Bearer nk_xxxxxxxxxxxxxxxxx
Content-Type: application/json

Call a tool

{
  "jsonrpc": "2.0",
  "id": "tool-call-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_walmart_category_market",
    "arguments": {
      "operation": "tree"
    }
  }
}

Online test

Execute the current API with your API key and JSON payload.

Try it

Send a real request with the same contract shown in the reference.

Endpoint
https://api.nexscope.ai/api/skill-api/v1/skills/walmart-category-market/run
MCP method
nexscope_walmart_category_market
cURL
curl -X POST \
  https://api.nexscope.ai/api/skill-api/v1/skills/walmart-category-market/run \
  -H "Authorization: Bearer nk-..." \
  -H "Content-Type: application/json" \
  -d '{ "operation": "tree" }'
Response
No response yet. Run the request to see the response here.