Mercado Product Selection 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

Product & Market Research

API overview

Research Mercado Libre products, categories, trends, sellers, keywords, reviews, exchange rates, and plan usage across five country sites.

Try this API

Endpoint

https://api.nexscope.ai/api/skill-api/v1/skills/mercado-product-selection/run

MCP method

nexscope_mercado_product_selection

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/mercado-product-selection/run

Run an API

toolName must be one of the 24 documented values. Required argument fields depend on toolName.

Slug	`mercado-product-selection`
Headers	`Authorization: Bearer nk_...` `Content-Type: application/json`
Request body	API-specific JSON object.
Response body	Direct API response payload. No data/result wrapper is added.

Status codes

Code	Description
200	API executed successfully. Body is the direct response payload.
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.

Example request

curl -X POST https://api.nexscope.ai/api/skill-api/v1/skills/mercado-product-selection/run \
  -H "Authorization: Bearer nk_xxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{   "toolName": "categorySearch",   "arguments": {     "siteId": "MLM",     "searchText": "Auriculares"   } }'

All categories/ Product & Market Research

POSThttps://api.nexscope.ai/api/skill-api/v1/skills/mercado-product-selection/run

Run this API

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

Open tester

Endpoint

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

Request body

Name	Type	Required	Description
`toolName`	`string`	required	Exact Mercado tool name. Example: categorySearch
`arguments`	`object`	required	Arguments for the selected tool. Example: { "siteId": "MLM", "searchText": "Auriculares" }

Request example

{
  "toolName": "categorySearch",
  "arguments": {
    "siteId": "MLM",
    "searchText": "Auriculares"
  }
}

Response body

Returns the normalized Lingdong gateway payload directly.

Name	Type	Required	Description
`code`	`string`	optional	Nexscope wrapper status code. Example: 200
`msg`	`string`	optional	Nexscope wrapper status message. Example: ok
`errcode`	`integer`	optional	Gateway business status code. Example: 200
`errmsg`	`string`	optional	Gateway business status message. Example: ok
`type`	`string`	optional	Provider result type. Example: rawMcpToolResult
`toolName`	`string`	optional	Executed Mercado tool name. Example: categorySearch
`charged`	`boolean`	optional	Whether the selected tool is paid. Example: false
`data`	`object`	optional	Parsed business data, or provider text when the result is not JSON. Example: {}
`contentText`	`string`	optional	Original concatenated provider text. Example: Category results...
`textParsedAsJson`	`boolean`	optional	Whether provider text was parsed as JSON. Example: true
`total`	`integer`	optional	Inferred result count when available. Example: 1
`costToken`	`integer`	optional	Provider-reported token cost; free tools return zero. Example: 0
`costTime`	`integer`	optional	Gateway execution time in milliseconds. Example: 308
`message`	`string`	optional	Provider-specific message.
`title`	`string`	optional	Provider-specific response title.
`sourceType`	`string`	optional	Provider-specific source platform type.
`sourceTool`	`string`	optional	Provider-specific source tool name.
`page`	`integer`	optional	Current page returned by the upstream provider.
`pageSize`	`integer`	optional	Page size returned by the upstream provider.
`pageItemCount`	`integer`	optional	Item count on the current page returned by the upstream provider.
`totalPage`	`integer`	optional	Total page count returned by the upstream provider.
`dataSnapshotMonth`	`string`	optional	Data snapshot month returned by the upstream provider.

Response example

Direct response payload. No extra wrapper is added.

{
  "code": "200",
  "msg": "ok",
  "errcode": 200,
  "errmsg": "ok",
  "type": "rawMcpToolResult",
  "toolName": "categorySearch",
  "charged": false,
  "data": {},
  "contentText": "Category results...",
  "textParsedAsJson": true,
  "total": 1,
  "costToken": 0,
  "costTime": 308
}

Responses

Code	Description
200	API executed successfully. Body is the direct response payload.
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.

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_mercado_product_selection",
    "arguments": {
      "toolName": "categorySearch",
      "arguments": {
        "siteId": "MLM",
        "searchText": "Auriculares"
      }
    }
  }
}

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/mercado-product-selection/run

MCP method

nexscope_mercado_product_selection

API key*

JSON payload*

cURL

curl -X POST \
  https://api.nexscope.ai/api/skill-api/v1/skills/mercado-product-selection/run \
  -H "Authorization: Bearer nk-..." \
  -H "Content-Type: application/json" \
  -d '{ "toolName": "categorySearch", "arguments": { "siteId": "MLM", "searchText": "Auriculares" } }'

Response

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