Amazon Marketplace Intelligence

Amazon Related Asins MCP Tool

Find Amazon same-niche competitors by ASIN, with multi-dimensional filtering by click conversion rate, composite conversion rate, click volume, sales volume, reviews, ratings, price, and gross margin to identify potential competitors.

MCP tool name

nexscope_amazon_related_asins

Legacy MCP endpoint

/api/skill-api/v1/mcp

JSON-RPC method

tools/call

Authentication

Send the user API key as a bearer token on every MCP JSON-RPC request.

Authorization: Bearer nk-xxxxxxxxxxxxxxxxx

If authentication is missing or invalid, ask the user to open API Access and copy a valid key before calling this tool.

Call this MCP tool

Use tools/call with the MCP tool name below. The arguments object should match the table on this page.

{
  "jsonrpc": "2.0",
  "id": "amazon-related-asins-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_amazon_related_asins",
    "arguments": {
      "countryCode": "US",
      "asin": "B072MQ5BRX",
      "page": 1,
      "pageSize": 10
    }
  }
}

Legacy endpoint

POST /api/skill-api/v1/mcp

Canonical detail URL

https://www.nexscope.ai/mcp-map/amazon-related-asins

Arguments

Name	Type	Required	Meaning
`asin`	`string`	required	Reference ASIN, used to query competitor listings that belong to the same niche as this ASIN, max length 1000 characters Example: B072MQ5BRX
`countryCode`	`string`	optional	Country code, options: US (United States), JP (Japan), DE (Germany) Example: {}
`page`	`integer`	optional	Page number (starting from 1) Example: 1
`pageSize`	`integer`	optional	Items returned per page (10-100) Example: 10
`sortField`	`string`	optional	Sort field (see sort options below) Example: {}
`sortType`	`string`	optional	Sort direction: desc (descending) or asc (ascending) Example: {}
`priceMin`	`number`	optional	Minimum product price Example: 1
`priceMax`	`number`	optional	Maximum product price Example: 1
`fbaFeeMin`	`number`	optional	Minimum FBA fee Example: 1
`fbaFeeMax`	`number`	optional	Maximum FBA fee Example: 1
`grossProfitMarginMin`	`number`	optional	Minimum gross profit margin Example: 1
`grossProfitMarginMax`	`number`	optional	Maximum gross profit margin Example: 1
`totalReviewsMin`	`integer`	optional	Minimum review count Example: 1
`totalReviewsMax`	`integer`	optional	Maximum review count Example: 1
`customerRatingMin`	`number`	optional	Minimum rating, range 0.0-5.0 Example: 1
`customerRatingMax`	`number`	optional	Maximum rating, range 0.0-5.0 Example: 1
`clickCountT7Min`	`integer`	optional	Minimum weekly click count Example: 1
`clickCountT7Max`	`integer`	optional	Maximum weekly click count Example: 1
`clickCountGrowthT7Min`	`number`	optional	Minimum weekly click growth rate, range 0-1, e.g., 0.1 means 10% Example: 1
`clickCountGrowthT7Max`	`number`	optional	Maximum weekly click growth rate, range 0-1, e.g., 0.1 means 10% Example: 1
`clickConversionRateMin`	`number`	optional	Minimum click conversion rate, range 0-1, e.g., 0.1 means 10% Example: 1
`clickConversionRateMax`	`number`	optional	Maximum click conversion rate, range 0-1, e.g., 0.1 means 10% Example: 1
`clickCountT30Min`	`integer`	optional	Minimum monthly click count Example: 1
`clickCountT30Max`	`integer`	optional	Maximum monthly click count Example: 1
`clickCountGrowthT30Min`	`number`	optional	Minimum monthly click growth rate, range 0-1, e.g., 0.1 means 10% Example: 1
`clickCountGrowthT30Max`	`number`	optional	Maximum monthly click growth rate, range 0-1, e.g., 0.1 means 10% Example: 1
`clickConversionRateCompositeMin`	`number`	optional	Minimum composite click conversion rate, range 0-1, e.g., 0.1 means 10% Example: 1
`clickConversionRateCompositeMax`	`number`	optional	Maximum composite click conversion rate, range 0-1, e.g., 0.1 means 10% Example: 1
`salesVolumeT360Min`	`integer`	optional	Minimum annual sales volume Example: 1
`salesVolumeT360Max`	`integer`	optional	Maximum annual sales volume Example: 1
`launchDateMin`	`string`	optional	Earliest listing time, format yyyyMMdd000000 Example: 2026-01-01
`launchDateMax`	`string`	optional	Latest listing time, format yyyyMMdd000000 Example: 2026-01-01
`nicheCountMin`	`integer`	optional	Minimum number of niche markets Example: 1
`nicheCountMax`	`integer`	optional	Maximum number of niche markets Example: 1
`sellerCountry`	`string`	optional	Seller country code, comma-separated for multiple countries, e.g.: CN,US Example: {}

Response fields

Treat structuredContent as the programmatic API response payload.

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

Any of option 1

Name	Type	Required	Description
`data`	`object`	required	Data value used by this API operation.
`data.total`	`integer`	optional	Total record count Example: 1
`data.pages`	`integer`	optional	Total page count Example: 1
`data.page`	`integer`	optional	Current page Example: 1
`data.pageSize`	`integer`	optional	Page size, min 10, max 100 Example: 10
`data.data`	`array`	optional	ASIN product list (see product object fields below) Example: []
`data.columns`	`array`	optional	Rendered columns Example: []
`data.type`	`string`	optional	Render style Example: null
`data.costToken`	`integer`	optional	Token consumption Example: 1
`data.data[].asin`	`string`	optional	Amazon product ASIN Example: B072MQ5BRX
`data.data[].parentAsin`	`string`	optional	Amazon product parent ASIN Example: B072MQ5BRX
`data.data[].title`	`string`	optional	Product title Example: null
`data.data[].brand`	`string`	optional	Brand Example: null
`data.data[].price`	`number`	optional	Price Example: 1
`data.data[].currentPrice`	`number`	optional	Current price Example: 1
`data.data[].currency`	`string`	optional	Currency Example: null
`data.data[].customerRating`	`number`	optional	Rating Example: 1
`data.data[].totalReviews`	`integer`	optional	Review count Example: 1
`data.data[].launchDate`	`string`	optional	Listing time Example: 2026-01-01
`data.data[].link`	`string`	optional	ASIN link Example: null
`data.data[].imagesUrl`	`string`	optional	Product main image Example: https://example.com/image.jpg
`data.data[].sellerName`	`string`	optional	Seller name Example: null
`data.data[].sellerId`	`string`	optional	Seller ID Example: example-id
`data.data[].fbaFee`	`number`	optional	FBA fee Example: 1
`data.data[].shippingFee`	`number`	optional	FBA shipping fee Example: 1
`data.data[].gpm`	`number`	optional	Gross profit margin Example: 1
`data.data[].clickConversionRate`	`number`	optional	Click conversion rate (original 7-day click conversion rate) Example: 1
`data.data[].clickConversionRateComposite`	`number`	optional	Composite click conversion rate Example: 1
`data.data[].clickConversionRateType`	`string`	optional	Conversion rate calculation type Example: null
`data.data[].clickConversionRateCompositeType`	`string`	optional	Composite conversion rate calculation type Example: null
`data.data[].clickCountT7`	`integer`	optional	7-day click count Example: 1
`data.data[].clickCountT30`	`integer`	optional	30-day click count Example: 1
`data.data[].clickCountT90`	`integer`	optional	90-day click count Example: 1
`data.data[].clickCountGrowthT7`	`number`	optional	Weekly click growth rate Example: 1
`data.data[].clickCountGrowthT30`	`number`	optional	Monthly click growth rate Example: 1
`data.data[].purchasedClicksT360`	`integer`	optional	360-day purchase clicks Example: 1
`data.data[].salesVolumeT360`	`integer`	optional	Annual sales volume Example: 1
`data.data[].nicheCount`	`integer`	optional	Number of niche markets the product belongs to Example: 1
`data.data[].sameNicheTitle`	`string`	optional	Same niche title Example: null
`data.data[].involvedNum`	`integer`	optional	Number of involved keywords Example: 1
`data.data[].involvedFrequency`	`integer`	optional	Frequency of involved keywords Example: 1
`data.data[].categoryNames`	`array`	optional	Category information Example: []
`data.data[].hasMetric`	`boolean`	optional	Whether the product has metrics Example: false
`data.data[].searchValueType`	`string`	optional	Search type: exact (exact match), sameNiche (same niche as reference ASIN), category (category) Example: null
`data.data[].niches`	`array`	optional	Top 3 niche markets, containing: nicheId, nicheTitle, demand (market score), image, marketplaceId Example: []
`data.data[].bestSellersRanking`	`array`	optional	Best seller rankings, containing: rank (ranking), category (category name) Example: []
`data.data[].trends`	`array`	optional	90-day trend data, containing: day (date), clickCountT7 (weekly click count), reviewCount (review count), reviewRating (review rating), bestSellerRanking (BSR ranking), averagePriceT7 (weekly average price), totalOfferDepthT7 (7-day new offers) Example: []
`data.data[].lastUpdateTime`	`string`	optional	Last update time Example: 2026-01-01
`data.title`	`string`	optional	Provider-specific response title. Example: null
`data.sourceType`	`string`	optional	Provider-specific source platform type. Example: null
`data.sourceTool`	`string`	optional	Provider-specific source tool name. Example: null
`data.costTime`	`integer`	optional	Execution time reported by the upstream provider. Example: null
`data.pageItemCount`	`integer`	optional	Item count on the current page returned by the upstream provider. Example: null
`data.totalPage`	`integer`	optional	Total page count returned by the upstream provider. Example: null
`data.dataSnapshotMonth`	`string`	optional	Data snapshot month returned by the upstream provider. Example: null

Any of option 2

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

Examples

Example arguments

{
  "countryCode": "US",
  "asin": "B072MQ5BRX",
  "page": 1,
  "pageSize": 10
}

Example structuredContent

{
  "data": {
    "total": 1,
    "pages": 1,
    "page": 1,
    "pageSize": 10,
    "data": [
      {
        "asin": "B072MQ5BRX",
        "parentAsin": "B072MQ5BRX",
        "price": 1,
        "currentPrice": 1,
        "customerRating": 1,
        "totalReviews": 1,
        "launchDate": "2026-01-01",
        "imagesUrl": "https://example.com/image.jpg",
        "sellerId": "example-id",
        "fbaFee": 1,
        "shippingFee": 1,
        "gpm": 1,
        "clickConversionRate": 1,
        "clickConversionRateComposite": 1,
        "clickCountT7": 1,
        "clickCountT30": 1,
        "clickCountT90": 1,
        "clickCountGrowthT7": 1,
        "clickCountGrowthT30": 1,
        "purchasedClicksT360": 1,
        "salesVolumeT360": 1,
        "nicheCount": 1,
        "involvedNum": 1,
        "involvedFrequency": 1,
        "categoryNames": [],
        "hasMetric": false,
        "niches": [],
        "bestSellersRanking": [],
        "trends": [],
        "lastUpdateTime": "2026-01-01"
      }
    ],
    "columns": [],
    "costToken": 1
  },
  "code": 0,
  "msg": null,
  "ts": "0",
  "time": "2026-01-01 00:00:00",
  "cost": "-1",
  "traceId": null
}