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DayZ API MCP Server

by quantumloader
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DayZ API MCP Server [Made by Opus 4.6 FULL :)]

DayZ API MCP Server

MCP (Model Context Protocol) server for DayZ Enforce Script. Gives any AI coding assistant deep knowledge of the DayZ scripting API — semantic search across 5800+ vanilla classes, code validation, class hierarchy, reverse call graphs, and more.

Features

Tool

Description

search_function

Semantic / exact / fuzzy search across 25 000+ methods

get_function_details

Full signature, parameters, body, and related functions

find_usage_examples

Real usage examples from vanilla scripts

get_class_hierarchy

Inheritance tree and modded extensions

find_callers

Reverse call graph — who calls a given method

validate_code

Enforce Script Iron Rules checker (ternary, try/catch, casts, etc.)

find_vanilla_alternative

Suggests vanilla API for custom code

parse_script

Parse Enforce Script and extract AST

Quick Start

git clone https://github.com/quantumloader/dayz-api-mcp-server.git
cd dayz-api-mcp-server
npm install
npm run build

Index vanilla scripts

Point to your DayZ Tools script dump (usually extracted via DayZ Tools):

# Index all layers (1_Core through 5_Mission)
node dist/indexer/index-cli.js index P:/scripts

# Or use the batch file
Index-All-Scripts.bat

Output: data/index.json (~30 MB, 5800+ classes, 25000+ methods, 300+ enums).

Connect to your IDE

Windsurf — add to MCP settings:

{
  "mcpServers": {
    "dayz-enforce": {
      "command": "node",
      "args": ["P:/enforce-mcp-dayz/dist/server/index.js"]
    }
  }
}

Claude Desktop — add to claude_desktop_config.json:

{
  "mcpServers": {
    "dayz-enforce": {
      "command": "node",
      "args": ["P:/enforce-mcp-dayz/dist/server/index.js"]
    }
  }
}

Replace P:/enforce-mcp-dayz with your actual path.

Project Structure

src/
├── parser/
│   ├── token.ts              # Token types
│   ├── rules.ts              # Keywords, operators
│   ├── lexer.ts              # Tokenizer with #ifdef/#endif support
│   └── EnforceScriptParser.ts # Token-based parser → ParsedClass/Method/Enum
├── indexer/
│   ├── Indexer.ts             # Index interface
│   ├── FileSystemIndex.ts     # TF-IDF index, reverse call graph, search
│   └── index-cli.ts           # CLI: index / search / verify
├── validator/
│   └── CodeValidator.ts       # Iron Rules validation engine
├── server/
│   ├── DayZMCP.ts             # MCP server with all tools
│   └── index.ts               # Entry point
└── types/
    └── index.ts               # Shared TypeScript types

Tools Reference

search_function

{ "query": "copy weapon attachments", "searchType": "semantic", "limit": 5 }

searchType: semantic (default) — meaning-based, exact — name match, fuzzy — partial match.

get_function_details

{ "className": "EntityAI", "methodName": "CopyOldPropertiesToNew" }

Returns signature, parameters, body source, file path, line number, and related functions.

find_callers

{ "className": "DayZPlayerImplement", "methodName": "EEKilled" }

Returns all call sites: caller class, method, file, and line.

validate_code

{ "code": "string result = condition ? 'yes' : 'no';" }

Checks for: ternary operator, try/catch, do-while, C-style casts, GetPlayer() on server, backslash in strings, vector literal format, missing SetSynchDirty(), and more.

find_usage_examples

{ "className": "PlayerBase", "methodName": "GetIdentity", "limit": 3 }

get_class_hierarchy

{ "className": "PlayerBase" }

Returns parent chain, children, and modded extensions.

find_vanilla_alternative

{ "customCode": "for (int i = 0; i < player.GetInventory().GetCargo()..." }

parse_script

{ "code": "class MyClass extends ItemBase { ... }" }

Resources

  • dayz://classes — list of all indexed classes

  • dayz://classes/{name} — class details with methods and variables

CLI

# Index scripts
node dist/indexer/index-cli.js index P:/scripts

# Search
node dist/indexer/index-cli.js search "handle weapons" --type semantic --limit 10
node dist/indexer/index-cli.js search HandleWeapons --type exact

# Verify index quality
node dist/indexer/index-cli.js verify --min-classes 1000

Parser

The Enforce Script parser is based on the dfenscript lexer. Key capabilities:

  • Full #ifdef / #ifndef / #else / #endif support with nesting

  • All Enforce Script modifiers: override, proto, native, event, thread, sealed, abstract, final, etc.

  • Generic types (array<ref Widget>), destructors (~ClassName), operator overloads

  • Error recovery — skips broken declarations and continues parsing

  • Extracts method bodies for search indexing

License

MIT

Install Server
A
license - permissive license
A
quality
B
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
1Releases (12mo)

Resources

Unclaimed servers have limited discoverability.

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