Why does Claude Desktop say "Server disconnected" or "spawn npx ENOENT" on Windows?

100% Client-Side • Zero Server Upload

MCP Server Config (mcp.json) Builder

Visual generator & syntax validator for Claude Desktop, Cursor & Antigravity Model Context Protocol (mcp.json) configs.

Target Operating System:

Allowed Local Filesystem Directory Path

Include GitHub MCP ServerInclude PostgreSQL MCP Server

Step-by-Step Guide

How to Use MCP Server Config (mcp.json) Builder

Complete your workflow in seconds with 100% browser-based execution and zero cloud uploads.

Select Popular MCP Servers or Add Custom

Toggle pre-configured MCP servers (Filesystem, GitHub, Postgres, Brave Search, Memory, Puppeteer, Slack) or add your own `npx`/`uvx` command.

Configure OS Path & Environment Keys

Automatically formats Windows (`npx.cmd` / escaped backslashes) vs. macOS/Linux paths so Claude Desktop never fails to spawn.

Copy or Download Validated mcp.json

Paste directly into `claude_desktop_config.json` or `.cursor/mcp.json`.

Fixes Windows npx.cmd & Path Escaping Bugs

Solves the #1 error Windows users face (`spawn npx ENOENT`) by generating OS-accurate command strings.

1-Click Prebuilt MCP Catalog

Includes official `@modelcontextprotocol` servers ready to toggle on.

Live JSON Schema Validator

Prevents trailing commas and broken env blocks.

Why Choose Client-Side Browser Processing Over Cloud AI Tools?

Traditional online converters upload your confidential prompts, images, and documents to remote servers. AIScrubbers executes strictly on your device.

Security & Performance Metric	AIScrubbers (Client-Side Engine)	Legacy Cloud Uploaders
Data Privacy & Server Storage	0 Bytes Uploaded (100% RAM Execution)	Files stored on third-party cloud buckets
HIPAA / GDPR / NDA Compliance	Compliant by Design (Air-Gapped Capable)	Requires DPA & risks prompt logging
Processing Speed	Instantaneous (<150ms local binary parse)	Slow upload + queue + download wait
Cost & Daily Limits	100% Free & Unlimited (No Paywalls)	3-file daily limits & credit card trials

Built for High-Compliance & Creator Workflows

Amazon KDP, Etsy & Social Creators

Strip C2PA Content Credentials, protect proprietary Midjourney/ComfyUI prompts inside PNG chunks, and normalize artwork to 300 DPI for print-on-demand portals.

Healthcare, Legal & Enterprise Teams

Scrub HIPAA/GDPR PII (names, SSNs, emails, API keys) into reversible tokens locally before pasting confidential contracts or medical notes into ChatGPT or Claude.

NotebookLM Researchers & Job Seekers

Combine 100+ PDFs and notes to bypass Google NotebookLM’s 50-source cap, and clean invisible zero-width Unicode watermarks before submitting resumes to Workday ATS.

AI Engineers & Technical SEO Teams

Generate official `llms.txt` files, configure `OAI-SearchBot` vs. `GPTBot` rules, validate `.jsonl` fine-tuning datasets, and build error-free `mcp.json` server configs.

Frequently Asked Questions — MCP Server Config (mcp.json) Builder

On Windows, GUI apps like Claude Desktop often cannot resolve bare `npx` or unescaped `C:\Users\...` paths. Our builder formats Windows paths with forward slashes or properly escaped backslashes and `npx.cmd`.

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