Opgg MCP

What opgginc/opgg-mcp does

opgginc/opgg-mcp connects MCP-compatible agents to OP.GG data for three games: League of Legends, Teamfight Tactics, and Valorant. The League of Legends toolset is the broadest, covering champion analysis, lane matchups, synergies, builds, summoner profiles, match history, detailed games, items, skins, champion metadata, leaderboards, and esports data.

For TFT, the server provides champion item builds, play-style information, augment metadata, item recipes, champion suggestions for items, and current meta decks. Valorant coverage includes agent statistics, map-specific compositions, agent and map metadata, regional leaderboards, and player match history.

How it works

The server is available at https://mcp-api.op.gg/mcp and uses Streamable HTTP transport. An MCP client connects to that endpoint and invokes the game-specific tools with their relevant arguments.

Most tools accept a desired_output_fields parameter. Fields can be selected with paths such as name, data.summoner.level, or data.champions[].{name,title}. Nested fields, array fields, and grouped fields are supported, allowing clients to request only the parts of a response they need.

League of Legends tools distinguish between profile, match-history, and full-game queries. Summoner profiles return rank, tier, LP, win rate, and champion-pool information, while match-history tools return recent games and per-game statistics for the target summoner. Full game details include teams, participants, builds, and bans. Esports schedule times are returned in ISO 8601 UTC format and should be converted before being shown to users in another timezone.

Setup and configuration

Configure an MCP client to use the Streamable HTTP endpoint:

https://mcp-api.op.gg/mcp

No local runtime or environment variable is required for the hosted endpoint. After connecting, clients can call the tools for League of Legends, TFT, or Valorant and limit response size with desired_output_fields where supported.

Tools and capabilities

• Analyze League of Legends champions with win, pick, and ban rates, builds, skill choices, counters, synergies, and position-specific guidance.
• Retrieve summoner profiles, recent match history, and detailed data for individual games.
• Browse champion metadata, lane tiers, champion leaderboards, items, discounted skins, and skin popularity or ownership rankings.
• Look up professional player Riot IDs and retrieve LoL esports schedules, results, and league standings.
• Query TFT builds, play styles, augments, item combinations, champion recommendations, and meta decks.
• Query Valorant agent statistics, map compositions, agent and map metadata, regional leaderboards, and player matches.

Limitations and notes

League of Legends champion and matchup queries require enough context to identify the champion and, where relevant, the position or opponent. Summoner profile and match-history requests serve different purposes, and full game details are a separate query. When focusing on one participant in a game, the matching Riot ID is flagged so the focused player’s row can be distinguished from other participants.

TFT augment results include localized names and descriptions, while ARAM augment results include tier 3 and higher augments. Valorant leaderboard queries use supported regions such as AP, BR, EU, KR, LATAM, and NA. Skin statistics return ranked identities rather than raw counts, and the base skin is excluded.