trenddata

trenddata

trenddata is a small local bridge to the hosted HasData Google Trends MCP server, which returns Google Trends data as JSON. Give it one or more search terms, and it fetches interest over time, interest by region, and the related topics and related queries for those terms. Lookups can be narrowed by geography, region granularity (country, subregion, metro, or city), date range, category, time zone offset, and Google property (web search by default, or images, news, shopping, or YouTube).

The bridge stores no trends data of its own. It serves the upstream server's tool list locally, exactly as captured from the live endpoint, and forwards each tool call upstream, returning the result untouched. The captured surface is a single read-only fetch: there is no write, messaging, or payment tool in it.

Tools

• hasdata_google_trends_search_getTrendsData — fetch Google Trends data for a query. Required: q (the search term). Optional: geo (location code; worldwide when unset or empty), region (country / region / dma / city, used with the interest-by-region data type), dataType (timeseries / geoMap / relatedTopics / relatedQueries), tz (time zone offset in minutes, default 420), cat (category code, default 0 for all categories), gprop (images / news / froogle / youtube; web search when unset), and date (a named range such as today 12-m or all, or a custom yyyy-mm-dd yyyy-mm-dd range). Returns interest-over-time series, geo-level breakdowns, and rising and top related topics and queries with relative scores.

Configuration

• HASDATA_GOOGLE_TRENDS_MCP_URL (optional) — override the upstream endpoint. Defaults to https://mcp.hasdata.com/mcp?apis=google_trends. (The override hook is this rebuild's own labelled reconstruction.)
• HASDATA_API_KEY (optional) — when set, every upstream request carries an x-api-key: <key> header, for the caller's own HasData API key. When it is not set, no key header is sent. (The header name and the env name are pinned by the original's registry record; forwarding the key from this env var is a labelled reconstruction — the original surface was captured keyless.)

Forwarding mechanics

On the first tool call the client opens a streamable HTTP session with the upstream: a JSON-RPC initialize request (protocolVersion 2025-03-26, clientInfo name trenddata), then a notifications/initialized notification, then the tools/call request carrying the caller's arguments unchanged. When the upstream answers initialize with an Mcp-Session-Id header, that value rides on every later request of the session, which is reused for the life of the process. Replies may arrive as plain JSON or as server-sent events; both are read.

Successful upstream results pass through verbatim, including any isError flag the upstream sets. Failures — a JSON-RPC error, a non-2xx status, an unreadable response, or a request that cannot be completed — come back as an isError result whose text starts with trenddata error: (this rendering is this rebuild's own labelled reconstruction).

CLI

The tool is also a subcommand taking one JSON argument string:

npx @reneturcios/trenddata hasdata_google_trends_search_getTrendsData '{"q":"electric vehicles","geo":"US","dataType":"timeseries","date":"today 12-m"}'
npx @reneturcios/trenddata --version

Exit codes: 0 on success, 1 on an isError result, 2 on a usage error.

MCP server

npx -y @reneturcios/trenddata mcp

MCP client config:

{
  "mcpServers": {
    "trenddata": {
      "command": "npx",
      "args": ["-y", "@reneturcios/trenddata", "mcp"]
    }
  }
}

Docker

docker run -i ghcr.io/cloudcorprecords/trenddata
docker run --rm ghcr.io/cloudcorprecords/trenddata --version

The container's default command is mcp, so the first form is a stdio MCP server; any other arguments reach the CLI normally.

Development

npm install
npm run build
npm test
npm run dev

The test suite runs entirely against a stubbed JSON-RPC upstream — no live network calls.

License

MIT — see LICENSE.