Fsext Mcp Server Typescript

A high-performance, secure, and production-grade Model Context Protocol (MCP) server built with TypeScript, providing comprehensive filesystem operations, advanced text search & replace, image processing, and Tesseract OCR capabilities. Designed for LLM agent integration, it delivers strict input validation, standardized response structures, streaming large-file processing, and multi-transport remote deployment support.

Core Features Full Filesystem CRUD & Directory Management：Complete file/directory creation, deletion, copy, move, metadata query, and existence verification. Supports recursive full-directory tree replication and safe move operations with conflict protection.

Streaming File I/O for Large Files：Implements segmented text reading, chunked binary streaming reading, text/binary overwriting and appending. Avoids full memory loading, perfectly supporting GB-level large file processing.

Advanced Text Search & In-Place Replace：Directory-wide recursive content search, single/multi-file contextual matching with preview lines, regular expression support, case-insensitive matching, and precise in-file text replacement with change statistics.

Professional Image Processing Suite：Built-in high-performance image resize (aspect ratio lock support), precise crop, and arbitrary-angle rotation based on Sharp, covering mainstream image editing scenarios.

Cross-Platform Tesseract OCR：WASM-first OCR recognition with customizable local Tesseract binary and tessdata paths, supporting multi-language text extraction from images without local engine installation dependency.

Strict Strict Input Validation & Standardized Response：All tool schemas enable strict additional property prohibition, with unified success/error response structures for consistent client parsing and error handling.

Multi-Standard MCP Transports：Natively supports three official MCP transports: stdio (local client), SSE (legacy remote stream), Streamable HTTP (modern bidirectional remote transport).

Full TypeScript Type Safety：Complete type definitions for all tool parameters, response structures, and transport configurations, ensuring runtime stability and development friendliness.

1. Run without installation npx -y fsext-mcp-server --lock-root /your/workspace # Default STDIO transport with lock root support npx -y fsext-mcp-server --transport stdio npx -y fsext-mcp-server --transport http --host 0.0.0.0 --port 8080 --origin * # Streamable HTTP transport npx -y fsext-mcp-server --transport sse

2. Installation Global Installation (Recommended for CLI Usage) npm install -g fsext-mcp-server Local Project Installation npm install fsext-mcp-server

3. Startup Commands 3.1. Default Stdio Mode (For Claude Desktop / Cursor / Local MCP Clients)

fsext-mcp-server-ts fsext-mcp-server

fsext-ts fsext 3.2. SSE Remote Transport Mode fsext-mcp-server --transport sse --host 0.0.0.0 --port 8000 Endpoints:

SSE Stream Subscription:http://:/sse

Client Request Channel: http://:/messages

3.3. Modern Streamable HTTP Transport Mode fsext-mcp-server --transport http --host 0.0.0.0 --port 8000