Amazon Keyword Expansion

Find related Amazon keywords and compare search demand.

Cost88 credits / call

POST · https://api.nexscope.ai/api/skill-api/v1/skills/amazon-keyword-expansion/runMCP · nexscope_amazon_keyword_expansion

Choose an integration method

Keyword & Search Demand

What this API does

Expand seed keywords across 10 Amazon marketplaces with search volume, trends, PPC bids, ranking difficulty, and related metrics.

Try this API

Endpoint

https://api.nexscope.ai/api/skill-api/v1/skills/amazon-keyword-expansion/run

MCP method

nexscope_amazon_keyword_expansion

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/api/skill-api/v1/skills/amazon-keyword-expansion/run

Run an API

Request parameters documented by ecommerce.amazon-keyword-expansion.

Example request

Replace YOUR_API_KEY, then run this command in your terminal.

curl -X POST 'https://api.nexscope.ai/api/skill-api/v1/skills/amazon-keyword-expansion/run' \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "marketplace": "us",
  "needCount": 10,
  "searchTerms": "phone case"
}'

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/ Keyword & Search Demand

POSThttps://api.nexscope.ai/api/skill-api/v1/skills/amazon-keyword-expansion/run

Run this API

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

Try the free keyword tool Open tester

Endpoint

Method	`POST`
Path	`https://api.nexscope.ai/api/skill-api/v1/skills/amazon-keyword-expansion/run`
Auth	`Bearer API key`
Content-Type	`application/json`

Request parameters

Name	Type	Required	Description
`marketplace`	`string`	required	Target marketplace code. Options: us, uk, de, in, ca, fr, it, es, mx, jp. Default us Example: us
`searchTerms`	`string`	required	Seed keyword (single keyword string) Example: phone case
`needCount`	`integer`	optional	Total number of results returned Example: 10
`sort`	`string`	optional	Sort field, default -monthly_search_volume_exact (exact search volume descending)
`minMonthlySearchVolumeExact`	`integer`	optional	Minimum exact search volume Example: 1
`maxMonthlySearchVolumeExact`	`integer`	optional	Maximum exact search volume Example: 1
`minMonthlySearchVolumeBroad`	`integer`	optional	Minimum broad search volume Example: 1
`maxMonthlySearchVolumeBroad`	`integer`	optional	Maximum broad search volume Example: 1
`minWordCount`	`integer`	optional	Minimum word count for keywords (for filtering long-tail keywords) Example: 1
`maxWordCount`	`integer`	optional	Maximum word count for keywords Example: 1
`minOrganicProductCount`	`integer`	optional	Minimum organic product count Example: 1
`maxOrganicProductCount`	`integer`	optional	Maximum organic product count Example: 1

Code example

{
  "marketplace": "us",
  "needCount": 10,
  "searchTerms": "phone case"
}

Response example

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

{
  "data": {
    "costToken": 1,
    "keywordInfoList": [
      {
        "monthlySearchVolumeExact": 1,
        "monthlySearchVolumeBroad": 1,
        "monthlyTrend": 1,
        "quarterlyTrend": 1,
        "relevancyScore": 1,
        "easeOfRankingScore": 1,
        "organicProductCount": 1,
        "sponsoredProductCount": 1,
        "ppcBidExact": 1,
        "ppcBidBroad": 1,
        "spBrandAdBid": 1,
        "recommendedPromotions": 1
      }
    ]
  },
  "code": 0,
  "msg": null,
  "ts": "0",
  "time": "2026-01-01 00:00:00",
  "cost": "-1",
  "traceId": null
}

Response fields

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.costToken`	`integer`	optional	Tokens consumed Example: 1
`data.keywordInfoList`	`array`	optional	Keyword information list Example: []
`data.keywordInfoList[]`	`object`	required	Item in data keywordInfoList.
`data.keywordInfoList[].name`	`string`	optional	Keyword name Example: null
`data.keywordInfoList[].country`	`string`	optional	Marketplace code Example: null
`data.keywordInfoList[].monthlySearchVolumeExact`	`integer`	optional	Monthly average exact match search volume Example: 1
`data.keywordInfoList[].monthlySearchVolumeBroad`	`integer`	optional	Monthly average broad match search volume Example: 1
`data.keywordInfoList[].monthlyTrend`	`number`	optional	Monthly search volume change percentage Example: 1
`data.keywordInfoList[].quarterlyTrend`	`number`	optional	Quarterly search volume change percentage Example: 1
`data.keywordInfoList[].dominantCategory`	`string`	optional	Category with the highest share in search results Example: null
`data.keywordInfoList[].relevancyScore`	`integer`	optional	Relative relevance score to the seed keyword. Higher values indicate a closer match; the upstream provider does not document a fixed 0-100 range Example: 1
`data.keywordInfoList[].easeOfRankingScore`	`integer`	optional	Ease of ranking score (higher means easier to rank) Example: 1
`data.keywordInfoList[].organicProductCount`	`integer`	optional	Number of organic ranking products Example: 1
`data.keywordInfoList[].sponsoredProductCount`	`integer`	optional	Number of sponsored products Example: 1
`data.keywordInfoList[].ppcBidExact`	`number`	optional	Exact match PPC suggested bid (USD) Example: 1
`data.keywordInfoList[].ppcBidBroad`	`number`	optional	Broad match PPC suggested bid (USD) Example: 1
`data.keywordInfoList[].spBrandAdBid`	`number`	optional	Sponsored Brand ad suggested bid (USD) Example: 1
`data.keywordInfoList[].recommendedPromotions`	`integer`	optional	Number of recommended promotion giveaways Example: 1
`data.type`	`string`	optional	Provider-specific render or payload type. Example: null
`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.page`	`integer`	optional	Current page returned by the upstream provider. Example: null
`data.pageSize`	`integer`	optional	Page size 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.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.

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/api/skill-api/v2/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_amazon_keyword_expansion",
    "arguments": {
      "marketplace": "us",
      "needCount": 10,
      "searchTerms": "phone case"
    }
  }
}

Legacy MCP v1

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

GET / POST /api/skill-api/v1/mcp

Online test

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

88 credits / callAPI usage records

Try it

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

Endpoint

https://api.nexscope.ai/api/skill-api/v1/skills/amazon-keyword-expansion/run

MCP method

nexscope_amazon_keyword_expansion

API key*

JSON payload*

cURL

curl -X POST \
  https://api.nexscope.ai/api/skill-api/v1/skills/amazon-keyword-expansion/run \
  -H "Authorization: Bearer nk-..." \
  -H "Content-Type: application/json" \
  -d '{ "marketplace": "us", "needCount": 10, "searchTerms": "phone case" }'

Response

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

Related APIs

Amazon ASIN Keywords

Find keywords driving traffic to an Amazon ASIN.

Amazon Keyword Intelligence

Explore weekly Amazon Brand Analytics search-term data.

Amazon Keyword Overview

Evaluate search demand and competition for an Amazon keyword.

Amazon Keyword Search History

Track exact Amazon keyword search volume in seven-day periods across 10 marketplaces.

Run an API

Request parameters documented by ecommerce.amazon-keyword-expansion.

Example request

Replace YOUR_API_KEY, then run this command in your terminal.

curl -X POST 'https://api.nexscope.ai/api/skill-api/v1/skills/amazon-keyword-expansion/run' \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "marketplace": "us",
  "needCount": 10,
  "searchTerms": "phone case"
}'

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.

Name

Type

Required

Description

marketplace

string

required

Target marketplace code. Options: us, uk, de, in, ca, fr, it, es, mx, jp. Default us

Example: us

searchTerms

string

required

Seed keyword (single keyword string)

Example: phone case

needCount

integer

optional

Total number of results returned

Example: 10

sort

string

optional

Sort field, default -monthly_search_volume_exact (exact search volume descending)

minMonthlySearchVolumeExact

integer

optional

Minimum exact search volume

Example: 1

maxMonthlySearchVolumeExact

integer

optional

Maximum exact search volume

Example: 1

minMonthlySearchVolumeBroad

integer

optional

Minimum broad search volume

Example: 1

maxMonthlySearchVolumeBroad

integer

optional

Maximum broad search volume

Example: 1

minWordCount

integer

optional

Minimum word count for keywords (for filtering long-tail keywords)

Example: 1

maxWordCount

integer

optional

Maximum word count for keywords

Example: 1

minOrganicProductCount

integer

optional

Minimum organic product count

Example: 1

maxOrganicProductCount

integer

optional

Maximum organic product count

Example: 1

{ "data": { "costToken": 1, "keywordInfoList": [ { "monthlySearchVolumeExact": 1, "monthlySearchVolumeBroad": 1, "monthlyTrend": 1, "quarterlyTrend": 1, "relevancyScore": 1, "easeOfRankingScore": 1, "organicProductCount": 1, "sponsoredProductCount": 1, "ppcBidExact": 1, "ppcBidBroad": 1, "spBrandAdBid": 1, "recommendedPromotions": 1 } ] }, "code": 0, "msg": null, "ts": "0", "time": "2026-01-01 00:00:00", "cost": "-1", "traceId": null }

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.

Name

Type

Required

Description

data

object

required

Data value used by this API operation.

data.costToken

integer

optional

Tokens consumed

Example: 1

data.keywordInfoList

array

optional

Keyword information list

Example: []

data.keywordInfoList[]

object

required

Item in data keywordInfoList.

data.keywordInfoList[].name

string

optional

Keyword name

Example: null

data.keywordInfoList[].country

string

optional

Marketplace code

Example: null

data.keywordInfoList[].monthlySearchVolumeExact

integer

optional

Monthly average exact match search volume

Example: 1

data.keywordInfoList[].monthlySearchVolumeBroad

integer

optional

Monthly average broad match search volume

Example: 1

data.keywordInfoList[].monthlyTrend

number

optional

Monthly search volume change percentage

Example: 1

data.keywordInfoList[].quarterlyTrend

number

optional

Quarterly search volume change percentage

Example: 1

data.keywordInfoList[].dominantCategory

string

optional

Category with the highest share in search results

Example: null

data.keywordInfoList[].relevancyScore

integer

optional

Relative relevance score to the seed keyword. Higher values indicate a closer match; the upstream provider does not document a fixed 0-100 range

Example: 1

data.keywordInfoList[].easeOfRankingScore

integer

optional

Ease of ranking score (higher means easier to rank)

Example: 1

data.keywordInfoList[].organicProductCount

integer

optional

Number of organic ranking products

Example: 1

data.keywordInfoList[].sponsoredProductCount

integer

optional

Number of sponsored products

Example: 1

data.keywordInfoList[].ppcBidExact

number

optional

Exact match PPC suggested bid (USD)

Example: 1

data.keywordInfoList[].ppcBidBroad

number

optional

Broad match PPC suggested bid (USD)

Example: 1

data.keywordInfoList[].spBrandAdBid

number

optional