Mantic.sh

Overview

Mantic is a structural code search engine designed specifically for AI agents. It prioritizes relevance over raw speed, combining semantic understanding with heuristic search to find conceptually relevant code. The tool supports advanced features like CamelCase detection, path sequence matching, and can perform code intelligence tasks like 'go to definition' and 'find references' across monorepos. It runs entirely locally with zero data egress, making it both efficient and private.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• search_files

  Search code files by intent with optional semantic reranking

  Try:Find files related to payment processingTry:Search for authentication logic with semantic analysisTry:Show me all references to the UserService class
• get_definition

  Go to definition of a symbol across the codebase

  Try:Where is the UserService class defined?Try:Find the definition of the handleLogin functionTry:Show me the source code for stripe integration
• find_references

  Find all usages of a symbol in the codebase

  Try:Where is handleLogin used throughout the code?Try:Find all references to the payment processorTry:Show every place the auth token is used
• get_context

  Zero-query mode for proactive context about modified files and dependencies

  Try:Show me context for this taskTry:What files are relevant to my current work?Try:Show impact analysis without a specific query
• session_start

  Start a named coding session with intent context

  Try:Start a session for implementing payment webhookTry:Begin a new feature session for user authenticationTry:Create a session to refactor the checkout process
• session_end

  End an active coding session

  Try:End my current payment sessionTry:Close the authentication feature sessionTry:Finish the checkout refactor session
• session_record_view

  Track viewed files in the current session

  Try:Record that I viewed the payment service fileTry:Note that I've examined the auth componentTry:Track that I'm looking at the checkout code
• session_list

  List all active sessions

  Try:Show me all my active sessionsTry:List coding sessions in progressTry:What sessions are currently running?
• session_info

  Get detailed information about a specific session

  Try:Show details for my payment sessionTry:View history of my auth feature sessionTry:What files have I viewed in my checkout session?
• analyze_intent

  Understand query intent to improve search results

  Try:Analyze my search intent for 'payment integration'Try:Help me understand what I'm looking for with 'auth logic'Try:Clarify what I mean by 'user management system'

Comparable tools

Installation

{
  "mcpServers": {
    "mantic": {
      "command": "npx",
      "args": ["-y", "mantic.sh@latest", "server"]
    }
  }
}

FAQ

How does Mantic compare to ripgrep?

Mantic is slower than ripgrep on raw speed but provides superior relevance ranking, context-aware search, and code intelligence features like 'go to definition' and 'find references'.

Is Mantic suitable for very large repositories?

Mantic can handle large repositories (tested on Chromium with 481K files) but has a speed tradeoff. For very large repos (100K+ files), ripgrep may be faster for simple text searches.

On Hacker News

Recent discussion from the developer community.

• Show HN: Mantic.sh – A structural code search engine for AI agents▲ 81💬 37
  Story by marcoaapfortes · 2026-01-06

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