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io.github.mrfentmen/riotgames-mcp

NPM · RIOTGAMES-MCP

Riot Games API: LoL summoner lookup, match history, mastery, keyless Data Dragon versions.

Available components

+10 this week 59 Trust /100

Last scanned (1 hour ago)

Scores higher than 36% of npm servers

Category Entertainment and Games

Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security81
  • No malware found by supply-chain analysis.Pass
  • CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
  • No install/post-install scripts declared.Pass
  • 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency19
Schema Quality & AI Usability71
  • AI-judged instruction clarity (good).Pass
  • Tool/resource definitions use about 374 tokens (~62/item across 6 items; 6 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
  • Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Unverified: 1 category

A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 24 Oct 26 −5
    • CVE-2023-54404 affects this package: high ▼ security
    • Known CVEs: pass → fail ▼ security
  • 19 Oct 26 0
    • Security disclosure: unverified → fail ▼ functional
  • 18 Oct 26 +15
    • Malware scan: unverified → pass ▲ security
    • Source repository: Repository check failed: the declared repository URL redirects; it must resolve directly. security
  • 17 Oct 26 49

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 24 Oct 2026 · Analysed npm/riotgames-mcp@1.0.0

Provenance No attestation

The registry publishes no build provenance for this version, so there is nothing to verify.

Result No attestation
Ecosystem npm

Background: How many MCP packages publish verified provenance →

Vulnerabilities 1 finding
ID CVE Severity Vector Fix available
GHSA-mrhx-c7xc-m3w5 CVE-2023-54404 high CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H yes

Background: What a vulnerability scan can and cannot prove →

Dependencies 93 packages
Packages resolved 93
Stale 30
Tree resolution Complete

Background: SBOMs and build attestations, explained →

MCP tools · 6 exposed · ~374 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
get_account_by_riot_id ~95

Resolve a Riot ID (gameName + tagLine) to PUUID and region info. Works for LoL, Valorant, TFT.

NameTypeReqDescription
clusterstring–Routing cluster: americas, asia, europe or sea
gameNamestringyesRiot ID game name, e.g. 'Faker'
tagLinestringyesRiot ID tag, e.g. 'KR1'

No output schema declared.

No examples provided.

get_ddragon_versions ~27

Keyless: list all League of Legends Data Dragon patch versions, newest first.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_lol_champion_mastery ~61

Top champion-mastery entries for a summoner: champion ids, points, chest granted.

NameTypeReqDescription
countnumber–How many entries
platformstring–Platform routing
puuidstringyesPlayer PUUID

No output schema declared.

No examples provided.

get_lol_match ~62

Full detail for one LoL match: teams, participants, builds, damage, objectives.

NameTypeReqDescription
clusterstring–Routing cluster
matchIdstringyesMatch id like NA1_539 etc. Use ids from get_lol_match_ids.

No output schema declared.

No examples provided.

get_lol_match_ids ~60

List recent League of Legends match ids for a PUUID, newest first.

NameTypeReqDescription
clusterstring–Routing cluster
countnumber–How many ids (1-100)
puuidstringyesPlayer PUUID

No output schema declared.

No examples provided.

get_lol_summoner ~69

Get a League of Legends summoner profile by PUUID: level, profile icon, revision date.

NameTypeReqDescription
platformstring–Platform routing: na1, euw1, kr, ...
puuidstringyesPlayer PUUID from get_account_by_riot_id

No output schema declared.

No examples provided.

Install

How do I install the io.github.mrfentmen/riotgames-mcp server?

io.github.mrfentmen/riotgames-mcp runs locally as an npm package, launched with npx -y riotgames-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

npm · riotgames-mcp

# add to Claude Code
claude mcp add mrfentmen-riotgames-mcp -- npx -y riotgames-mcp
Common questions

What is the io.github.mrfentmen/riotgames-mcp server?

io.github.mrfentmen/riotgames-mcp is listed in the public MCP registry as io.github.mrfentmen/riotgames-mcp. Riot Games API: LoL summoner lookup, match history, mastery, keyless Data Dragon versions. This page covers its npm package (riotgames-mcp).

Is the io.github.mrfentmen/riotgames-mcp server safe to use?

io.github.mrfentmen/riotgames-mcp scores 59 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 24 October 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the io.github.mrfentmen/riotgames-mcp server expose?

io.github.mrfentmen/riotgames-mcp exposes 6 tools: get_account_by_riot_id, get_lol_summoner, get_lol_match_ids, get_lol_match, get_lol_champion_mastery, get_ddragon_versions. Their descriptions and schemas cost roughly 374 tokens of context every time the server is loaded.

Is the io.github.mrfentmen/riotgames-mcp server still maintained?

io.github.mrfentmen/riotgames-mcp is still listed as active in the MCP registry. We last reached this channel on 24 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the io.github.mrfentmen/riotgames-mcp server under?

io.github.mrfentmen/riotgames-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.