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 list -u https://mcp.grep.app -t http`
Get tool details: `mh inspect -u https://mcp.grep.app -t http searchGitHub`
Invoke tool: `mh invoke -u https://mcp.grep.app -t http 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
• Use useRegexp=true with (?s) prefix for multi-line patterns

Tools

Tool Parameters

searchGitHub

Required:
  query (string)             — literal code pattern, e.g. "useState(" or "import React from"

Optional:
  language (array)           — filter by language, e.g. ["TypeScript", "TSX"], ["Python"]
  repo (string)              — filter by repo, e.g. "facebook/react" or "vercel/"
  path (string)              — filter by file path, e.g. "src/components" or "/route.ts"
  useRegexp (boolean)        — treat query as regex (default: false)
  matchCase (boolean)        — case-sensitive search (default: false)
  matchWholeWords (boolean)  — match whole words only (default: false)

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

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

# Find multi-line patterns with regex
mh invoke -u https://mcp.grep.app -t http searchGitHub '{"query": "(?s)useEffect\\(\\(\\) => {.*removeEventListener", "useRegexp": true}'

# Search within a specific repo
mh invoke -u https://mcp.grep.app -t http searchGitHub '{"query": "from \"openai\"", "repo": "vercel/ai"}'