mTarsier Launches Free Open-Source Tool to Unify MCP Server Management Across All Clients

mTarsier is a free, open-source desktop tool released by mcp360 that helps developers manage Model Context Protocol (MCP) server configurations across multiple AI clients from one place. It runs locally on macOS, Windows, and Linux, requires no account, and supports 12+ AI clients like Claude Desktop, Cursor, VS Code, ChatGPT Desktop, and Gemini CLI. End Quote

(1888PressRelease) March 17, 2026 - MCP360 today released mTarsier, a free and open-source desktop application for managing Model Context Protocol (MCP) server configurations across AI clients from a single place. It requires no account, runs entirely locally, and currently supports more than 12 clients on macOS, Windows, and Linux.

MCP configuration has become a major pain point. Claude Desktop stores its config in one JSON file. Cursor keeps it in a different location. VS Code extensions use another format. Windsurf, ChatGPT Desktop, and Gemini CLI each manage configuration in their own way. People working across clients are left manually editing JSON across scattered folders, with no validation, no backup, and no easy way to share setups with teammates.

"We built mTarsier out of our frustration. We kept hitting the same issue over and over: one small JSON error in the wrong config file could break a client. There was no central view, no validation, and no easy way to hand a working setup to a colleague. After solving it for ourselves, we realized the same problem existed for anyone working across multiple AI tools." - Himanshu

CAPABILITIES:
Auto-detection
Automatically identifies all AI clients installed on the machine, with no manual setup required.
Unified dashboard
Displays every MCP server and its client connections in a single view.
JSON validation
Catches configuration errors before they break anything, with inline feedback.
Built-in marketplace
Install MCP servers directly into any supported client without touching config files.
Automatic backups
Creates a backup before every configuration changes
Team snapshots
Export any setup as a .tsr file that teammates can import to replicate the exact environment.
CLI support
The tsr command-line tool offers full feature parity for developers who prefer the terminal.

SUPPORTED CLIENTS
mTarsier currently works with 12+ clients, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Antigravity, ChatGPT Desktop, and Gemini CLI. It runs on macOS, Windows, and Linux with no internet connection or account required.

AVAILABILITY
mTarsier is available now as a free, open-source download at github.com/mcp360/mTarsier/releases. The project is MIT-licensed. Contributions, bug reports, and feature requests are welcome via GitHub Issues.

About mcp360
mcp360 is a unified gateway for AI agents with 100+ marketplace tools and custom MCPs. mTarsier is their first public release. The project is community-driven and welcomes contributions from developers working with MCP-compatible AI clients. mTarsier is named after the tarsier, a small primate known for its exceptional visual range. The name reflects the product’s core idea: giving developers one clear view across the fragmented world of MCP server configuration. Tarsiers are endangered, and we supports conservation efforts..

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