Wordstat MCP by Marketscore
Wordstat MCP
A connector to the hosted Marketscore service: Yandex Wordstat frequency and seasonality in Claude and ChatGPT, with noise filtering
Low risk
We rate an entry low when it mostly gives the agent instructions and reference material.
Why this level
- Only returns keyword-research data, changes nothing in user accounts
- Personal data and keys are stored on the service's servers in Russia under 152-FZ, which requires trusting a third-party host
Install
Manual install
npx -y marketscore-wordstat-mcpA bridge for local MCP clients like Cursor, VS Code, Cline, Zed.
This is third-party code. Review the repository files before installing.
What it does
The package is a thin bridge to a hosted MCP server at marketscore.ru: the actual logic and Wordstat API calls run on the service side. Four tools: wordstat_suggest returns frequencies and related phrases with noise annotation (informational queries, job postings, geo-tails), addressable demand and ready negative keywords; wordstat_dynamics shows 24-month seasonality with a year-over-year trend; wordstat_cluster groups related phrases into an ad-group draft; wordstat_regions gives demand by region with an affinity index. Claude and ChatGPT connect by URL via OAuth; local clients use an npx bridge.
Who it is for. For marketers who want not a raw Wordstat dump but an already-annotated list, noise removed, with seasonality attached.
Good fit when
- You want frequency data with the noise already filtered out and negative keywords ready
- You need two years of seasonality with a verdict on when to launch
- You need an ad-group draft built from related phrases
Not a fit when
- You need a fully free source with no prepaid packs
- You need direct access to the raw Wordstat API rather than through the service layer
Example request
Build a keyword list for "air humidifier" targeting Moscow: frequencies, negative keywords and the seasonal peakLimitations
The service is paid: packs start at 100 requests for 20 rubles, one free request on sign-up, credits never expire. Without a balance the server exposes zero tools. The connector itself is open (MIT), but the matching logic and Wordstat API keys stay on marketscore.ru's side, you're trusting that service as a data provider.
How to disable. Remove the connector from your Claude or ChatGPT settings, or delete the wordstat entry from your local client's mcpServers.
MCP
- Transport
- stdio, http
- Authentication
- OAuth
Security check
- Only returns keyword-research data, changes nothing in user accounts
- Personal data and keys are stored on the service's servers in Russia under 152-FZ, which requires trusting a third-party host
README in short
The bilingual README explains the difference from plain Wordstat scrapers, gives a pricing table, shows the URL-based connection for Claude/ChatGPT and the npx bridge for local clients, and mentions two sibling paid MCP servers on the same account, one for SEO metrics, one for Direct/VK/Avito ads.
FAQ
Do I need a Yandex Direct account?
No, this is a standalone keyword-research product; a Direct account is not required.
What happens when the balance runs out?
The server stops exposing tools until you top up with another request pack.
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