League of Legends MCP Server

Item: League of Legends MCP Server
Rating: 74
Author: M8ven

MCP server exposing 30 tools for League of Legends player analysis, match review, and training-plan generation.

→ rexlManu/lol-mcp-server · listed on glama

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// key findings

🚨

Known vulnerabilities in dependencies: 1 critical, 1 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

🔐

You'll be asked for 1 credential: RIOT_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies1 critical1 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@3.2.1GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.25.2GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretRIOT_API_KEY— Edit .env and add your

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/rexlmanu-lol-mcp-server-ybsaf8)](https://m8ven.ai/mcp/rexlmanu-lol-mcp-server-ybsaf8)

commit: f8968761d72eb5a4a67451536adf6452aa710c40

code hash: 937de2df4c85c02f360f67d0be7c9dcbea092b804d6a380c521f786026d69f8d

verified: 6/10/2026, 10:17:56 AM

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