mcp-1c

Install

Manual install

{
  "mcpServers": {
    "mcp-1c-onescript": {
      "command": "oscript",
      "args": ["C:\\mcp-1c\\main.os"],
      "env": {
        "SHCNTX_HELP_DB": "C:\\mcp-1c\\src\\data\\shcntx_help.db"
      }
    }
  }
}

This is third-party code. Review the repository files before installing.

What it does

The server runs through the OneScript interpreter and gives an agent five tools: searching BSL files by substring or regex, searching configuration XML, listing dump files and folders, reading a BSL module in full, by method list, or by a specific method body, and searching the 1C syntax helper reference through a local SQLite database. This saves an agent from manually walking dump files when working on a configuration. The syntax helper search needs a separate sql package for OneScript and a database file. A ready-made Cursor rule turns the server on automatically when .bsl and .xml configuration files are opened.

Who it is for. For 1C developers who work with a configuration dump in Cursor and want an agent to search code and metadata without spending extra tokens reading files by hand.

Example request

Find every module in the configuration dump that calls the BeforeWrite procedure and show their bodies

Limitations

The author states directly in the README that all code in the repository except one paragraph was written by AI agents. The server path must not contain Cyrillic characters, or Cursor passes it garbled. The server must not be registered in both the global and the project's local mcp.json at once, or Cursor starts two processes with the same name and one crashes. Requires OneScript 2.0+ installed and in PATH.

How to disable. Remove the mcp-1c-onescript block from %USERPROFILE%\.cursor\mcp.json and restart MCP in Cursor.

MCP

Transport

stdio

Authentication

not required

Security check

• Only reads configuration dump files and the local reference database
• Does not connect to a live 1C database and does not execute code

README in short

The README gives a table of five tools, requirements (OneScript, Cursor, the sql package for the reference search), step-by-step setup by copying the build folder and editing mcp.json, warnings about Cyrillic paths and duplicate server registration, installation via opm, and a check command using echo with a JSON-RPC request. The author states plainly that the code was written by AI agents and points to the more full-featured cc-1c-skills as an alternative.

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