---

name: mcp-grep-code description: Search real-world code examples from over a million public GitHub repositories. Use when finding code patterns, implementation examples, or how libraries are used in practice. Triggers on "find code examples", "how is [library] used", "search GitHub code", "grep.app search", "code pattern".

Grep.app Code Search

MCP service at https://mcp.grep.app (http) with 1 tool.

Requirements

• mh CLI must be installed. If not available, install with:

  curl -fsSL https://raw.githubusercontent.com/vaayne/mcphub/main/scripts/install.sh | sh
  

Usage

List tools: mh -u https://mcp.grep.app -t http list Get tool details: mh -u https://mcp.grep.app -t http inspect searchGitHub Invoke tool: mh -u https://mcp.grep.app -t http invoke searchGitHub '{"query": "pattern"}'

Notes

• Run inspect before invoking unfamiliar tools to get full parameter schema
• Timeout: 30s default, use --timeout <seconds> to adjust
• Important: This searches for literal code patterns (like grep), NOT keywords
• Use actual code that would appear in files, not descriptions

Tools

Tool	Description
searchGitHub	Find real-world code examples from public GitHub repositories. Searches for literal code patterns across millions of repos.

Search Tips

Good queries (literal code patterns):

• useState(
• import React from
• async function
• (?s)try {.*await

Bad queries (keywords - won't work well):

• react state management
• how to use hooks

Examples

# Find useState usage patterns
mh -u https://mcp.grep.app -t http invoke searchGitHub '{"query": "useState("}'

# Find async/await patterns
mh -u https://mcp.grep.app -t http invoke searchGitHub '{"query": "async function fetch"}'

# Find import patterns
mh -u https://mcp.grep.app -t http invoke searchGitHub '{"query": "from \"openai\""}'