Mutagen (mutagen.ru), unofficial MCP Server

by svorobiev-ruio.github.SVorobiev-ru/mutagen-ru-mcpv0.1.0

Unofficial MCP server for the Mutagen SEO API: Wordstat frequencies, competition, semantic core

0Node.jsstdioofficial registry

context tax

pending

security

100/100

cold start

pending

freshness

Active4d ago

Our reading of Mutagen (mutagen.ru), unofficial, from the data

Mutagen (mutagen.ru), unofficial is a crm & marketing MCP server from svorobiev-ru, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

Maintenance is active: the last public signal was 4 days ago (2026-10-14). For comparison, 73% of crm & marketing servers are active or maintained.

With 0 GitHub stars it ranks #364 of 1,276 crm & marketing servers we index.

It runs locally on your machine over stdio and needs one secret (MUTAGEN_API_KEY); use a scoped, least-privilege key.

Install Mutagen (mutagen.ru), unofficial MCP server

claude mcp add mutagen-ru -e MUTAGEN_API_KEY='<mutagen-api-key>' -- npx -y mutagen-ru-mcp

{
  "mcpServers": {
    "mutagen-ru": {
      "command": "npx",
      "args": [
        "-y",
        "mutagen-ru-mcp"
      ],
      "env": {
        "MUTAGEN_API_KEY": "<mutagen-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "mutagen-ru": {
      "command": "npx",
      "args": [
        "-y",
        "mutagen-ru-mcp"
      ],
      "env": {
        "MUTAGEN_API_KEY": "<mutagen-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "mutagen-ru": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mutagen-ru-mcp"
      ],
      "env": {
        "MUTAGEN_API_KEY": "<mutagen-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "mutagen-ru": {
      "command": "npx",
      "args": [
        "-y",
        "mutagen-ru-mcp"
      ],
      "env": {
        "MUTAGEN_API_KEY": "<mutagen-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
MUTAGEN_API_KEY	yes	yes	Mutagen API key from https://mutagen.ru/?api_config
MUTAGEN_BUDGET_RUB	—	—	Spending limit per session, RUB
MUTAGEN_AUTO_APPROVE_RUB	—	—	Calls up to this sum run without confirmation, RUB
MUTAGEN_FREE_ONLY	—	—	1 refuses every paid call
MUTAGEN_TOOLS	—	—	Tool groups: basic,parser,serp,scenarios,text (default all)

Security signals

100/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.

Deductions

No findings from the checks that ran.

Checks

✓Repository hygiene (archived, activity, license, security policy)
○Package metadata (install scripts, provenance) — pending
○Tool descriptions (prompt-injection and hidden-text heuristics) — pending
○Source scan (secrets, CVEs, risky code) by vectra-guard — pending

Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules

Freshness

Active — last maintenance signal 4d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-14 · 4d ago · GitHub
Latest release
2026-10-14 · 4d ago · GitHub · v0.1.0
Package published
no data · npm/PyPI
Registry entry updated
2026-10-14 · 4d ago · official registry · v0.1.0

How it compares in CRM & Marketing

Against the most-starred crm & marketing servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Mutagen (mutagen.ru), unofficial (this)	0	—	not measured	Active	local
Atlassian	6,014	—	not measured	Active	—
Google Ads + Meta Ads + SEO/GEO	5,241	—	not measured	Active	hosted
AdsAgent	3,959	—	not measured	Deprecated	hosted
Meta Ads	1,313	—	not measured	Active	—
Reticle	1,258	—	not measured	Active	local

All crm & marketing MCP servers

FAQ

›How do I install the Mutagen (mutagen.ru), unofficial MCP server in Claude Code?

Run: claude mcp add mutagen-ru -e MUTAGEN_API_KEY='<mutagen-api-key>' -- npx -y mutagen-ru-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Mutagen (mutagen.ru), unofficial require an API key?

Yes. It expects MUTAGEN_API_KEY, of which 1 is a secret.

›Can I use Mutagen (mutagen.ru), unofficial as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Mutagen (mutagen.ru), unofficial in the official MCP registry?

Yes, as io.github.SVorobiev-ru/mutagen-ru-mcp.

Sources and method

Official MCP Registry entry: updated 2026-10-14
GitHub repository: fetched 2026-10-19
Package registry (npm / PyPI): listed
Security signals, computed by us: 2026-10-19
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.