Product & Market Research

Mercado Product Selection

Run one of 24 documented Mercado Libre product, category, trend, seller, review, rate, or usage tools.

MCP tool name

nexscope_mercado_product_selection

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": "mercado-product-selection-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_mercado_product_selection",
    "arguments": {
      "arguments": {
        "searchText": "Auriculares",
        "siteId": "MLM"
      },
      "toolName": "categorySearch"
    }
  }
}

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

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.charged`	`boolean`	optional	Whether the selected tool is paid. Example: false
`data.contentText`	`string`	optional	Original concatenated provider text. Example: Category results...
`data.costTime`	`integer`	optional	Gateway execution time in milliseconds. Example: 308
`data.costToken`	`integer`	optional	Provider-reported token cost; free tools return zero. Example: 0
`data.data`	`object`	optional	Parsed business data, or provider text when the result is not JSON. Example: {}
`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.textParsedAsJson`	`boolean`	optional	Whether provider text was parsed as JSON. Example: true
`data.title`	`string`	optional	Provider-specific response title. Example: null
`data.toolName`	`string`	optional	Executed Mercado tool name. Example: categorySearch
`data.total`	`integer`	optional	Inferred result count when available. Example: 1
`data.totalPage`	`integer`	optional	Total page count returned by the upstream provider. Example: null
`data.type`	`string`	optional	Provider result type. Example: rawMcpToolResult

Any of option 2

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

Examples

Example arguments

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

Example structuredContent

{
  "code": 0,
  "cost": "-1",
  "data": {
    "charged": false,
    "contentText": "Category results...",
    "costTime": 308,
    "costToken": 0,
    "data": {},
    "textParsedAsJson": true,
    "toolName": "categorySearch",
    "total": 1,
    "type": "rawMcpToolResult"
  },
  "msg": "ok",
  "time": "2026-01-01 00:00:00",
  "traceId": null,
  "ts": "0"
}