jscpd MCP Server: Setup for Claude, Cursor and Other Apps

• Checks a code snippet against your project for copies

  Takes code and its language and returns matching code in your project, with files and lines. It finds exact, renamed, near-miss and, if set up, same-job copies.

  Try: “Before you write this function, check if the project already has something like it.”

  Files · check_duplication

• Lists the duplicated code in one file

  Returns every clone found in the file you name, biggest first.

  Try: “Which parts of src/api.ts are copied elsewhere?”

  Files · get_file_clones

• Shows duplication totals for the project

  Returns how much of the project is duplicated, split by language and by kind of copy.

  Try: “How much of this codebase is duplicated?”

  Read · get_statistics

• Rescans the project for duplicates

  Reads the project folders again so results reflect your latest edits, then returns the new clone list.

  Try: “Rescan the project and list the biggest duplicates.”

  Files · check_current_directory

• Compares two folders function by function

  Pairs up the functions of two folders, for example a port and its original, and reports matches and the ones left unmatched. It needs a semantic model on your machine or an embeddings API, and asks you first.

  Try: “Compare the python and typescript folders and show what is not ported yet.”

  Files · compare_folders

Watch out for

• It reads the whole folder you give it

  It scans every source file under the path you pass. Choose a project folder, not your home directory. github.com

• Semantic mode needs a large model

  Same-job comparison needs a 548 MB model or an embeddings API. With an API, code snippets are sent to that service. github.com

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