cobol-mcp-client 0.1.12

COBOL MCP server with hybrid search and blind-spot detection

cobol-mcp-client

An MCP (Model Context Protocol) server for COBOL development assistance. Provides static analysis with blind-spot detection and hybrid documentation search.

Quick Start

pipx run cobol-mcp-client setup YOUR_API_KEY

This launches an interactive wizard where you select which IDEs to configure:

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Step 2: Select IDEs to configure
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

   1. cursor
   2. claude-desktop
   3. vscode
   4. windsurf
   5. amp
   6. zed
   7. cline
   8. continue
   9. roo-code

   a. All IDEs
   q. Quit

Enter numbers separated by spaces (e.g., 1 3 5) or 'a' for all:

Direct Install (skip prompts)

pipx run cobol-mcp-client setup YOUR_API_KEY --ide cursor
pipx run cobol-mcp-client setup YOUR_API_KEY --ide claude-desktop

List Supported IDEs

pipx run cobol-mcp-client list-ides

What It Does

Three tools exposed via MCP:

Tool	Description
check(file_path)	Static analysis of COBOL source files. Runs 30+ rules covering FILE STATUS, uninitialized variables, missing STOP RUN, arithmetic overflow, and IMS DL/I issues.
search(query)	Hybrid semantic + keyword search across GnuCOBOL, IBM Enterprise COBOL, CICS, and Visual COBOL documentation.
translate_reference(topic)	COBOL-to-Java translation patterns for data types, control flow, file I/O, CICS, DB2, and more.

Resources available:

• cobol://context — Dialect differences and search tips
• cobol://rules — Full rule documentation
• cobol://gnucobol — GnuCOBOL compiler reference

Manual Configuration

If you prefer to configure manually, add to your IDE's MCP config:

{
  "mcpServers": {
    "cobol": {
      "command": "uvx",
      "args": ["--from", "cobol-mcp-client", "cobol-mcp"],
      "env": {
        "COBOL_MCP_API_KEY": "your-api-key"
      }
    }
  }
}

Config file locations:

IDE	Path
Cursor	~/.cursor/mcp.json
Claude Desktop	~/Library/Application Support/Claude/claude_desktop_config.json
VS Code	~/.vscode/mcp.json
Windsurf	~/.codeium/windsurf/mcp_config.json
Zed	~/.config/zed/settings.json

Environment Variables

Variable	Required	Description
COBOL_MCP_API_KEY	Yes	API key for documentation search
COBOL_MCP_API_URL	No	Backend API URL (defaults to production)

Development

git clone https://github.com/haladir-ai/cobol-mcp-client
cd cobol-mcp-client
pip install -e .
python -m pytest tests/ -v

License

Proprietary.