greply-mcp

greply MCP Server

An MCP server that wraps the greply CLI (Node wrapper for the greppy search tool).
This allows you to use greply directly from an MCP-compatible client such as the Gemini CLI.

Features

• greply.search — run greply with query, before/after context, and flags.
• greply.help — print greply usage text.

Requirements

• Node.js 20 or newer (22 LTS recommended)
• npm or pnpm for dependency installation
• greply CLI available on PATH, or specify greply_CMD env var

Installation

Clone and install dependencies:

git clone https://github.com/your-org/greply-mcp-server.git
cd greply-mcp-server

# Make sure Node version is >= 20
node -v
# If needed:
#   curl -fsSL https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash
#   source ~/.nvm/nvm.sh
#   nvm install 22 && nvm use 22

npm install

Usage

Run the server directly:

node server.mjs

Or with npm:

npm start

Gemini CLI Configuration

Add this to your ~/.gemini/settings.json:

{
  "mcpServers": {
    "greply": {
      "command": "node",
      "args": ["/absolute/path/to/greply-mcp-server/server.mjs"],
      "env": {
        "greply_CMD": "/usr/local/bin/greppy"
      }
    }
  }
}

• greply_CMD is optional — only set it if the server cannot find greply automatically.
• Use an absolute path for server.mjs.

Tools

greply.search

Search files or directories with the given query and optional flags.

Input schema:

Field	Type	Description
query	string	Search term (required)
target	string	File or directory (default ".")
before	integer	Lines of context before match (-B)
after	integer	Lines of context after match (-A)
recursive	boolean	Recurse directories (-R)
wholeWord	boolean	Match whole words (-w)
matchCase	boolean	Case-sensitive match (-c)
fixedStrings	boolean	Fixed-string match (-F)
suppressErrors	boolean	Return stdout/stderr on non-zero exit

greply.help

Display greply usage information.