About hearthstone-oracle
hearthstone-oracle is an MCP server for Hearthstone card search, deck analysis, and strategy coaching. It combines a locally stored card database with built-in strategy knowledge.
Key features
- 01Search and look up cards
- 02Decode deck codes
- 03Analyze deck curves and archetypes
- 04Browse strategy and class identities
- 05Explain matchups and game concepts
Use cases
- 01Find cards by text, class, cost, or keyword
- 02Review a deck's list and mana curve
- 03Assess a deck's gameplan and matchups
- 04Get explanations of Hearthstone concepts
MCP support
The MCP server provides nine tools for card search and lookup, deck decoding and analysis, archetype and class information, matchup dynamics, and concept explanations.
Configuration
Local server config is the same for every client. Copy it into your client’s MCP config file.
Tools
Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.
Details
From the project README
hearthstone-oracle
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.
Features
- Complete card database from HearthstoneJSON — every collectible card, auto-updated
- Deck decoding and analysis — paste a deck code, get full card list, mana curve, and archetype breakdown
- Strategy knowledge — archetypes, class identities, matchup dynamics, and game concepts
- 9 MCP tools — search, lookup, decode, analyze, coach
Quick Start
claude mcp add hearthstone-oracle -- npx -y hearthstone-oracle
Card data is downloaded automatically from HearthstoneJSON on first run and stored locally in ~/.hearthstone-oracle/. No API key required.
Claude Desktop
Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):
{
"mcpServers": {
"hearthstone-oracle": {
"command": "npx",
"args": ["-y", "hearthstone-oracle"]
}
}
}
Tools
| Tool | Description |
|---|---|
search_cards | Search cards by name, text, class, cost, type, rarity, set, or keyword |
get_card | Get complete details for a specific card with fuzzy matching |
get_keyword | Look up keyword/mechanic definitions with related cards |
decode_deck | Decode a deck code into full card list with mana curve |
analyze_deck | Analyze a deck's archetype, gameplan, strengths, and matchup profile |
get_archetype | Learn about deck archetypes (aggro, control, combo, midrange, tempo, value) |
get_class_identity | Strategic identity of each Hearthstone class |
get_matchup | Theoretical matchup dynamics between archetypes |
explain_concept | Fundamental game concepts explained for Hearthstone |
How It Works
Two-layer architecture:
- Card data layer — Full card database from HearthstoneJSON, stored in a local SQLite database with FTS5 full-text search. Cards are fetched on first run and updated when newer game builds are available.
- Strategy layer — Built-in strategy knowledge covering archetypes, class identities, matchup theory, and core game concepts. Enables the server to provide coaching and analysis, not just raw card data.
Data Source
Card data provided by HearthstoneJSON by HearthSim. Auto-extracted from game files. Unrestricted use.
License
MIT
Comments
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