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Stop Guessing.
Start Knowing Your Code.

Give your AI assistant surgical precision on your codebase—at 70-95% lower token costs.

100% Local. Private. Fast.

70-95%
Lower API Costs
No Limits
Avoid Rate Caps
Never
Lose Context

Built on MCP (Model Context Protocol) • Works with Claude, Cursor, VS Code & more

Semantic Code Understanding

Claude Desktop + CartoGopher MCP
> how does authentication work in this app?
mcp - shake
TypeScript + Express + Prisma | 8,241 LOC | 203 functions
mcp - search ("auth")
authMiddleware:middleware validateToken:utils AuthController:controllers
mcp - crud_operations
User[CRUD] Session[CR] Token[CD] Permission[R]
mcp - api_trace ("/api/auth/login")
POST /api/auth/login
AuthController.login
AuthService.authenticate
UserRepository.findByEmail
TokenService.generate
# AI understands auth flow without reading 50+ files

Why CartoGopher?

Your AI reads entire files. CartoGopher gives it surgical precision instead.

Go

Fast Go Binary

A compiled Go binary parses your entire codebase in ~50ms. No Node.js, no Python—just a single fast executable that builds AST-aware code graphs.

MCP

MCP Server Built-In

Includes a Model Context Protocol server with 17 semantic query tools. Works natively with Claude Desktop, Cursor, and any MCP-compatible AI.

Cross-Language Tracing

Trace API calls from React frontend through Express backend to database. The Go binary understands TypeScript, Python, Go, Rust, and 20+ languages.

88%

88% Token Savings

AI queries specific symbols via MCP instead of reading entire files. Real teams report 85-90% reductions in token usage and API costs.

How It Works

Like a search engine for your code

1

Build the Index

Scans your codebase and builds a knowledge graph. Local, automatic, fast. Auto-updates as you code.

2

Query with Precision

Your AI pulls exact matches from the graph via MCP. No bloat, no guesswork. Instant results.

3

Save Money, Avoid Limits

70-95% fewer tokens. Lower costs, no rate limits, never lose context mid-conversation.

Built for Real Development Workflows

Code Review Assistance

AI understands the full call chain of changed functions without reading every dependent file. Reviews become faster and more accurate.

Bug Investigation

Trace error paths through your codebase. CartoGopher shows AI exactly which functions call which, making root cause analysis efficient.

Onboarding New Developers

New team members can ask AI questions about your architecture and get accurate answers based on real code structure, not hallucinations.

Refactoring Planning

Understand the blast radius of changes. See every caller of a function, every implementation of an interface, every dependency.

20+ Languages Supported

Go TypeScript JavaScript Python Rust Java C# C++ React Vue Svelte Ruby PHP Swift Kotlin Scala

Frequently Asked Questions

How does CartoGopher reduce AI token costs?

Instead of feeding entire source files to AI assistants, CartoGopher builds semantic code graphs using AST parsing. AI can then query specific symbols, trace function calls, and understand architecture—using 88% fewer tokens than reading raw files.

What AI assistants does CartoGopher work with?

CartoGopher works with any MCP-compatible AI assistant including Claude Desktop, Cursor IDE, and other tools that support the Model Context Protocol. The MCP server exposes 17 semantic query tools for deep code understanding.

How fast is the code parsing?

The Go CLI parses codebases in approximately 50 milliseconds, building complete AST-aware symbol graphs with function call relationships, CRUD classifications, and complexity metrics. There's no waiting or background indexing.

Is my code sent to external servers?

No. The Go CLI runs entirely on your machine and parsing happens locally. The MCP server only communicates with your AI assistant—your source code never leaves your environment.

Start Saving Tokens Today

Set up in under 5 minutes. Works with Claude Desktop, Cursor, and any MCP-compatible AI.

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