Hearthstone Oracle MCP Server

Hearthstone MCP server with card search, deck analysis, and strategy coaching. Gives LLMs access to every Hearthstone card plus built-in strategy knowledge for deck building and gameplay advice. Its 9 documented tools cluster into read & search, decode, analyze, explain. It runs locally over stdio via the published package.

People who work with deck and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-05-02 · ★ 2 · #686 OF 945 MAINTAINED OTHER · VERIFIED 2026-09-18

MIT · TypeScript servers · how we verify → /methodology

01 · Install Hearthstone Oracle

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add gregario-hearthstone-oracle -- npx -y hearthstone-oracle

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "gregario-hearthstone-oracle": {
      "command": "npx",
      "args": [
        "-y",
        "hearthstone-oracle"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package hearthstone-oracle - unscoped; check the name against the project README before installing

registry namespace io.github.gregario is GitHub-verified and matches the repo owner

03 · What Hearthstone Oracle can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can search cards by name, text, class, cost, type, rarity, set, or keyword, get complete details for a specific card with fuzzy matching, and analyze a deck's archetype, gameplan, strengths, and matchup profile.

Capability map

Tools grouped from the project's README - what Hearthstone Oracle lets an agent do.

read & search

6 tools - e.g. Search cards by name, text, class, cost, type, rarity, set, or keyword; Get complete details for a specific card with fuzzy matching; Look up keyword/mechanic definitions with related cards

search_cards · get_card · get_keyword · get_archetype · get_class_identity · get_matchup

Decode

1 tool - e.g. Decode a deck code into full card list with mana curve

decode_deck

Analyze

1 tool - e.g. Analyze a deck's archetype, gameplan, strengths, and matchup profile

analyze_deck

Explain

1 tool - e.g. Fundamental game concepts explained for Hearthstone

explain_concept

Latest releases

v0.1.1 · 2026-05-02

data freshness TTL, fallback message, fixture alignment · New Contributors · @gregario made their first contribution in

04 · Who maintains Hearthstone Oracle

hearthstone-oracle is maintained by gregario. We track 12 MCP servers from gregario - 12 actively maintained, 45 combined GitHub stars, oldest repo from Mar 2026. Full record: all servers from gregario.

05 · Facts

repository: github.com/gregario/hearthstone-oracle
category: other - ranked #686 of 945 actively-maintained other servers as of 2026-09-18.
registry: io.github.gregario/hearthstone-oracle (active, first published 2026-03-17)
packages: npm:hearthstone-oracle

06 · Hearthstone Oracle FAQ

Is Hearthstone Oracle still maintained?

Yes - as of 2026-09-18, its last commit was 2026-05-02. We re-verify nightly.

What can Hearthstone Oracle do?

How do I install Hearthstone Oracle?

Run `npx -y hearthstone-oracle`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Hearthstone Oracle run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Hearthstone Oracle

Alternatives to Hearthstone Oracle

Maintained other servers if Hearthstone Oracle isn't the fit.

More MCP servers to compare · Lego Oracle · Lorcana Oracle · Mtg Oracle · MAL MCP Server · Pulsenetwork

More TypeScript MCP servers · Onepiece Oracle · Warhammer Oracle · see all