jscpd
Copy/paste detector for source code. 220+ languages, Rust engine, SARIF/HTML/badge reporters, GitHub Action, MCP server for AI agents.
- 6.4k stars
- 272 forks
- 60 open issues
- Language: Rust
- License: MIT
- updated
Install
git clone https://github.com/kucherenko/jscpd{
"mcpServers": {
"jscpd": {
"command": "jscpd"
}
}
}{
"mcpServers": {
"jscpd": {
"command": "jscpd"
}
}
}- Run the command above in your terminal (Claude Code), or paste the JSON config into claude_desktop_config.json (Claude Desktop).
- Replace any <placeholder> values with your API keys or paths.
- Restart Claude. The MCP server and its tools appear automatically.
Install the binary first: cargo install jscpd (or build from https://github.com/kucherenko/jscpd).
Editor's note
jscpd is a copy-paste detection tool that scans source code for duplicated blocks across 223 to 224 language formats, using the Rabin-Karp algorithm to identify clones. It ships in two variants: a TypeScript engine (v4) with 13 reporters, LevelDB store support, and a Node.js programming API, and a ground-up Rust rewrite (v5) that runs as a self-contained binary with no Node.js dependency, delivering 24 to 37 times faster detection on real codebases. The MCP server integration allows Claude Code and other MCP-compatible agents to invoke duplicate detection directly as a tool call during code review or refactoring tasks. An AI reporter outputs results in a token-efficient format roughly 79 percent leaner than standard console output, making it practical for LLM pipelines where context budgets matter. The v5 Rust engine also adds git blame with side-by-side author comparison via gitoxide, and parallel file tokenization controlled through a workers flag. Developers, CI pipelines, and AI coding agents working across large polyglot repositories are the primary audience.
MCP Servers overview
What people ask about jscpd
What is kucherenko/jscpd?
kucherenko/jscpd is mcp servers for the Claude AI ecosystem. Copy/paste detector for source code. 220+ languages, Rust engine, SARIF/HTML/badge reporters, GitHub Action, MCP server for AI agents. It has 6.4k GitHub stars and its last recorded update is dated 2026-10-23.
How do I install jscpd?
You can install jscpd by cloning the repository (https://github.com/kucherenko/jscpd) or following the README instructions on GitHub. ClaudeWave also provides quick install blocks on this page.
Is kucherenko/jscpd safe to use?
Our security agent has analyzed kucherenko/jscpd and assigned a Trust Score of 97/100 (tier: Verified). See the full breakdown of passed checks and flags on this page.
Who maintains kucherenko/jscpd?
kucherenko/jscpd is maintained by kucherenko. The last recorded GitHub activity is dated 2026-10-23, with 60 open issues.
Are there alternatives to jscpd?
Yes. On ClaudeWave you can browse similar mcp servers at /categories/mcp, sorted by popularity or recent activity.