JsonFabrica MCP Server

by ms-methos Your server? Claim it

local only

JsonFabrica runs on your own machine — the client starts it, so there is no endpoint to ping. 241 installs a week from npm. Last commit 9 Sep 2026.

Generate realistic, relational synthetic JSON test data from templates, via the JsonFabrica API.

Installs per day peak 188 · avg 19 · +534% w/w

a month agotoday

241

Installs / week

npm · @jsonfabrica/mcp-server

Stars

0 open issues

9 Sep 2026

Last commit

0 releases in 90 days

MIT

License

TypeScript

Nothing serious here today

Today is the operative word: we check JsonFabrica every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add jsonfabrica-mcp-server -- npx -y @jsonfabrica/mcp-server

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "jsonfabrica-mcp-server": {
      "args": [
        "-y",
        "@jsonfabrica/mcp-server"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.jsonfabrica-mcp-server]
command = "npx"
args = ["-y", "@jsonfabrica/mcp-server"]

.cursor/mcp.json

{
  "mcpServers": {
    "jsonfabrica-mcp-server": {
      "args": [
        "-y",
        "@jsonfabrica/mcp-server"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "jsonfabrica-mcp-server": {
      "args": [
        "-y",
        "@jsonfabrica/mcp-server"
      ],
      "command": "npx"
    }
  }
}

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JsonFabrica — questions

Answers built from our own checks of this server.

Why is there no uptime for JsonFabrica?

JsonFabrica runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @jsonfabrica/mcp-server was installed 241 times last week.

How do I connect JsonFabrica?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @jsonfabrica/mcp-server straight from npm; nothing to host, nothing to sign up for.

How many people use JsonFabrica?

The npm package @jsonfabrica/mcp-server was installed 241 times in the last week. Week over week that is +534%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is JsonFabrica open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.