Amazon Marketplace Intelligence

Amazon Category Lookup

Browse Amazon category nodes or search category metadata by name.

MCP tool name

nexscope_amazon_category_lookup

MCP endpoint

https://api.nexscope.ai/api/skill-api/v2/mcp

JSON-RPC method

tools/call

Authentication

Use OAuth 2.1 Authorization Code with PKCE and the mcp:tools scope. API keys remain supported as a compatibility option.

Authorization: Bearer nk-xxxxxxxxxxxxxxxxx

If authentication fails, ask the user to open API Access and copy a valid key.

Call this MCP tool

Initialize an MCP 2025-11-25 Streamable HTTP session at https://api.nexscope.ai/api/skill-api/v2/mcp, then use tools/call.

{
  "jsonrpc": "2.0",
  "id": "amazon-category-lookup-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_amazon_category_lookup",
    "arguments": {
      "marketId": "1",
      "nodeId": "0",
      "operation": "lookup"
    }
  }
}

MCP 2025-11-25 · Streamable HTTP

Progress is delivered on the original POST SSE response. GET SSE carries notifications; reconnecting must query existing asynchronous work rather than submit again.

Arguments

Name	Type	Required	Description
`operation`	`string`	optional	lookup (default) or like. Example: lookup
`marketId`	`string`	optional	Amazon marketplace or site identifier. Example: 1
`nodeId`	`string`	optional	Parent category node identifier. Example: 0
`table`	`string`	optional	Optional upstream category table selector. Example: nodes
`nodeLabel`	`string`	optional	Category label required by operation=like. Example: Electronics

Response fields

Treat structuredContent as the programmatic API response payload.

Name	Type	Required	Description
`code`	`integer`	required	0 means accepted or successful; nonzero is a platform error.
`cost`	`string`	required	Elapsed milliseconds, never credits; -1 outside web requests.
`data`	`any`	required	Data value used by this API operation.
`msg`	`string \| null`	required	Msg value used by this API operation.
`time`	`string`	required	Server local time: yyyy-MM-dd HH:mm:ss.
`traceId`	`string \| null`	required	Trace id value used by this API operation.
`ts`	`string`	required	Epoch milliseconds.

Any of option 1

Name	Type	Required	Description
`data`	`object`	required	Data value used by this API operation.
`data.costTime`	`integer`	optional	Execution time reported by the upstream provider. Example: null
`data.costToken`	`integer`	optional	Provider-reported token cost. Example: 150
`data.data`	`array`	optional	Amazon category node records. Example: []
`data.data[]`	`object`	required	Amazon category node records.
`data.data[].nodeId`	`string`	optional	Category node identifier. Example: 172282
`data.data[].nodeLabel`	`string`	optional	Category label. Example: Electronics
`data.data[].parentNodeId`	`string`	optional	Parent node identifier. Example: 0
`data.dataSnapshotMonth`	`string`	optional	Data snapshot month returned by the upstream provider. Example: null
`data.page`	`integer`	optional	Current page returned by the upstream provider. Example: null
`data.pageItemCount`	`integer`	optional	Item count on the current page returned by the upstream provider. Example: null
`data.pageSize`	`integer`	optional	Page size returned by the upstream provider. Example: null
`data.sourceTool`	`string`	optional	Provider-specific source tool name. Example: null
`data.sourceType`	`string`	optional	Provider-specific source platform type. Example: null
`data.title`	`string`	optional	Provider-specific response title. Example: null
`data.total`	`integer`	optional	Number of returned category nodes. Example: 1
`data.totalPage`	`integer`	optional	Total page count returned by the upstream provider. Example: null
`data.type`	`string`	optional	Provider-specific render or payload type. Example: null

Any of option 2

Name	Type	Required	Description
`data`	`null`	required	Data value used by this API operation.

Examples

Example arguments

{
  "marketId": "1",
  "nodeId": "0",
  "operation": "lookup"
}

Example structuredContent

{
  "code": 0,
  "cost": "-1",
  "data": {
    "costToken": 150,
    "data": [
      {
        "nodeId": "172282",
        "nodeLabel": "Electronics",
        "parentNodeId": "0"
      }
    ],
    "total": 1
  },
  "msg": null,
  "time": "2026-01-01 00:00:00",
  "traceId": null,
  "ts": "0"
}