Amazon Research JS: keywords/by asin API

Use Amazon Research JS: keywords/by asin API through Nexscope with documented parameters, structured results and API key authentication.

Cost10 credits / call

Try online

POST · https://api.nexscope.ai/js/keywords/by-asinMCP · nexscope_data_js_keywords_by_asin

Amazon Research JS

What this API does

Use Amazon Research JS: keywords/by asin API through Nexscope with documented parameters, structured results and API key authentication. The request accepts marketplace, asins, needCount, includeVariants, sort. Its documented result includes keywordInfoList, name, country, monthlySearchVolumeExact, monthlySearchVolumeBroad, monthlyTrend, quarterlyTrend, dominantCategory.

Amazon Research JS: keywords/by asin API API use cases

Build a keyword shortlist

To build a keyword shortlist, a marketplace analyst submits marketplace and asins to Amazon Research JS: keywords/by asin API. The returned keywordInfoList, name, country help choose candidate search terms for further investigation.

Compare search demand signals

A marketplace analyst uses Amazon Research JS: keywords/by asin API with marketplace and asins to compare search demand signals. The returned keywordInfoList, name, country help compare keyword demand within the requested market scope.

Plan a content or advertising test

For this workflow, a marketplace analyst calls Amazon Research JS: keywords/by asin API with marketplace and asins to plan a content or advertising test. The result helps select terms for a content or advertising experiment.

Amazon Research JS: keywords/by asin API API FAQ

What does the Amazon Research JS: keywords/by asin API API return?

Use Amazon Research JS: keywords/by asin API through Nexscope with documented parameters, structured results and API key authentication. The documented output includes keywordInfoList, name, country, monthlySearchVolumeExact, monthlySearchVolumeBroad, monthlyTrend, quarterlyTrend, dominantCategory. It corresponds to the supplied marketplace, asins, needCount, includeVariants, sort. Optional fields can be absent; a missing value should not be interpreted as a measured zero. Example values illustrate the response shape, rather than live account results.

How many credits does the Amazon Research JS: keywords/by asin API API cost?

The current documented cost is 10 credits / call. This is the same cost shown at the top of this page. If a range or estimate is displayed, the final charge depends on the request. Review your available credits and the pricing page before calling the API, and check API usage records for the actual charge.

How do I call the Amazon Research JS: keywords/by asin API API from my app or an MCP client?

Send a POST request to https://api.nexscope.ai/js/keywords/by-asin with your API key as a Bearer token and the JSON inputs shown in API integration. In a compatible MCP client such as Claude or Cursor, connect Nexscope and call nexscope_data_js_keywords_by_asin. The same documented request parameters apply; use Online test to review a request before adding it to your app.

View plans and credits Connect this API with MCP

Try this API

Endpoint

https://api.nexscope.ai/js/keywords/by-asin

MCP method

nexscope_data_js_keywords_by_asin

Step 1 of 3 · Authenticate

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 .

Step 2 of 3 · Send a request

POSThttps://api.nexscope.ai/js/keywords/by-asin

Run an API

Send a JSON request body using the parameters described below.

Example request

Replace YOUR_API_KEY, then run this command in your terminal.

curl -X POST 'https://api.nexscope.ai/js/keywords/by-asin' \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "asins": [
    "B0DXXXXXXX"
  ],
  "marketplace": "us",
  "needCount": 50,
  "sort": "-monthly_search_volume_exact"
}'

Step 3 of 3 · Inspect the result

Check the response

Read code for the request status and data for the result. Open the parameter and response reference for the full field definitions.

HTTP status codes

Code	Description
200	HTTP request completed. Check JSON code; only 0 indicates business success or acceptance.
400	Request JSON or required API parameters are invalid.
401	API key is missing, invalid, or cannot be matched to a user.
5xx	API execution or upstream service failed.

View parameters & response Try online

All categories/ Amazon Research JS

POSThttps://api.nexscope.ai/js/keywords/by-asin

Run this API

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

Open tester

Endpoint

Method	`POST`
Path	`https://api.nexscope.ai/js/keywords/by-asin`
Auth	`Bearer API key`
Content-Type	`application/json`

Request parameters

Name	Type	Required	Description
`marketplace`	`string`	required	Target market code. Optional values: `us`, `uk`, `de`, `in`, `ca`, `fr`, `it`, `es`, `mx`, `jp` Example: us
`asins`	`string[]`	required	List of ASINs, up to 10
`needCount`	`integer`	optional	Total number of results returned (internal automatic pagination)
`includeVariants`	`boolean`	optional	Whether to include keywords for variant products
`sort`	`string`	optional	Sorting field; optional values see the sorting field table below Example: -monthly_search_volume_exact
`minMonthlySearchVolumeExact`	`integer`	optional	Minimum monthly precise search volume (1-999999)
`maxMonthlySearchVolumeExact`	`integer`	optional	Maximum monthly precise search volume (1-999999)
`minMonthlySearchVolumeBroad`	`integer`	optional	Minimum monthly broad search volume (1-999999)
`maxMonthlySearchVolumeBroad`	`integer`	optional	Maximum monthly broad search volume (1-999999)
`minWordCount`	`integer`	optional	Minimum number of words (1-99999)
`maxWordCount`	`integer`	optional	Maximum number of words (1-99999)
`minOrganicProductCount`	`integer`	optional	Minimum number of natural search results (1-99999)
`maxOrganicProductCount`	`integer`	optional	Maximum number of natural search results (1-99999)

Code example

{
  "asins": [
    "B0DXXXXXXX"
  ],
  "marketplace": "us",
  "needCount": 50,
  "sort": "-monthly_search_volume_exact"
}

Response example

Platform response envelope. code 0 indicates success or acceptance; data contains the business result.

{
  "code": 0,
  "cost": "-1",
  "data": {},
  "msg": null,
  "time": "2026-01-01 00:00:00",
  "traceId": null,
  "ts": "0"
}

Response fields

Response field reference (36 fields)

Name	Type	Required	Description
`costToken`	`integer`	optional	Number of tokens consumed
`keywordInfoList`	`array`	optional	Keyword information list
`name`	`string`	optional	keywords
`country`	`string`	optional	market code
`monthlySearchVolumeExact`	`integer`	optional	Monthly exact match search volume
`monthlySearchVolumeBroad`	`integer`	optional	Monthly broad match search volume
`monthlyTrend`	`float`	optional	Month-on-month trend (%)
`quarterlyTrend`	`float`	optional	Quarterly Trend (%)
`dominantCategory`	`string`	optional	Main categories
`relevancyScore`	`integer`	optional	Relevance of keywords to ASIN (0-100)
`easeOfRankingScore`	`integer`	optional	Ease of ranking (0-100, the higher it is, the easier it is to rank)
`organicRank`	`integer`	optional	ASIN’s organic search ranking
`sponsoredRank`	`integer`	optional	Ad Rank for ASIN
`overallRank`	`integer`	optional	Comprehensive ranking position
`organicProductCount`	`integer`	optional	Total number of products in organic search results
`sponsoredProductCount`	`integer`	optional	Total number of advertising space products
`ppcBidExact`	`float`	optional	Exact match PPC recommended bid (USD)
`ppcBidBroad`	`float`	optional	Broad Match PPC Recommended Bid (USD)
`spBrandAdBid`	`float`	optional	SP Brand Ad Recommended Bid (USD)
`recommendedPromotions`	`integer`	optional	Recommended promotion amount
`primaryAsin`	`string`	optional	The highest ranking ASIN for this keyword
`relativeOrganicPosition`	`float`	optional	Query the relative natural ranking position of an ASIN
`relativeSponsoredPosition`	`float`	optional	Query the relative ad ranking position of ASIN
`organicRankingAsinsCount`	`integer`	optional	Number of query ASINs with natural rankings
`sponsoredRankingAsinsCount`	`integer`	optional	Number of query ASINs with ad ranking
`avgCompetitorOrganicRank`	`float`	optional	Query the average organic position of an ASIN
`avgCompetitorSponsoredRank`	`float`	optional	Query the average ad position for an ASIN
`variationLowestOrganicRank`	`integer`	optional	Best organic position among variations
`variationLowestSponsoredRank`	`integer`	optional	Best ad position among variations
`competitorOrganicRank`	`array`	optional	Natural ranking for each ASIN, element `{asin, organicRank}`
`competitorSponsoredRank`	`array`	optional	Ad rank for each ASIN, element `{asin, sponsoredRank}`
`updatedAt`	`string`	optional	Data last updated time
`asin`	`string`	optional	ASIN
`organicRank`	`integer`	optional	The ASIN’s organic search ranking
`asin`	`string`	optional	ASIN
`sponsoredRank`	`integer`	optional	Ad Rank for this ASIN

Responses

Code	Description
200	HTTP request completed. Check JSON code; only 0 indicates business success or acceptance.
400	Request JSON or required API parameters are invalid.
401	API key is missing, invalid, or cannot be matched to a user.
5xx	API 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.

Step 1 of 2 · Connect your MCP client

MCP

V2 recommended

Connect remote agents through the standard MCP 2025-11-25 Streamable HTTP endpoint. Use OAuth 2.1 Authorization Code with PKCE, or an API key for compatibility.

POST https://api.nexscope.ai/mcp
MCP-Protocol-Version: 2025-11-25
Content-Type: application/json

Authentication

OAuth clients request the mcp:tools scope. The endpoint's 401 response advertises protected-resource metadata for authorization discovery.

Step 2 of 2 · Call the tool

Call a tool

{
  "jsonrpc": "2.0",
  "id": "tool-call-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_data_js_keywords_by_asin",
    "arguments": {
      "asins": [
        "B0DXXXXXXX"
      ],
      "marketplace": "us",
      "needCount": 50,
      "sort": "-monthly_search_volume_exact"
    }
  }
}

Legacy MCP v1

Existing API-key clients can continue using the compatibility endpoint. New integrations should use MCP v2.

GET / POST /mcp/legacy

Online test

Execute the current API with your API key and JSON payload. Online tests use this site's configured API environment; the Endpoint and copyable examples use the public integration address.

10 credits / callAPI usage records

Try it

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

Endpoint

/js/keywords/by-asin

MCP method

nexscope_data_js_keywords_by_asin

API key*

JSON payload*

cURL

curl -X POST \
  https://api.nexscope.ai/js/keywords/by-asin \
  -H "Authorization: Bearer nk-..." \
  -H "Content-Type: application/json" \
  -d '{ "asins": [ "B0DXXXXXXX" ], "marketplace": "us", "needCount": 50, "sort": "-monthly_search_volume_exact" }'

Response

No response yet. Run the request to see the response here.

Use Amazon Research JS: keywords/by keyword API through Nexscope with documented parameters, structured results and API key authentication.

Amazon Research JS: keywords/historical search volume API

Use Amazon Research JS: keywords/historical search volume API through Nexscope with documented parameters, structured results and API key authentication.

Amazon Research JS: keywords/share of voice API

Use Amazon Research JS: keywords/share of voice API through Nexscope with documented parameters, structured results and API key authentication.

Amazon Research JS: product database/query API

Use Amazon Research JS: product database/query API through Nexscope with documented parameters, structured results and API key authentication.

What this API does

Amazon Research JS: keywords/by asin API API use cases

Build a keyword shortlist

Compare search demand signals

Plan a content or advertising test

Amazon Research JS: keywords/by asin API API FAQ

What does the Amazon Research JS: keywords/by asin API API return?

How many credits does the Amazon Research JS: keywords/by asin API API cost?

How do I call the Amazon Research JS: keywords/by asin API API from my app or an MCP client?

Authentication

Run an API

Example request

Check the response

HTTP status codes

Run this API

Endpoint

Request parameters

Code example

Response example

Response fields

Responses

Data source, freshness, and limitations

MCP

Call a tool

Legacy MCP v1

Online test

Try it

Related APIs