MCP server manager

MCP server manager

KyttoMCP is a local Model Context Protocol (MCP) server manager for macOS and Windows that reads existing MCP JSON/TOML configurations, shows which servers are enabled across clients like Claude Desktop, Claude Code, Cursor, VS Code and Codex, and provides inspection, health checks, profiles, backups and safe configuration writes.

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Free
One of 141 tools in Developer Tools
Just launched
Data reviewed Sep 13, 2026

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Quick Overview

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What it does

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KyttoMCP is a local control panel for Model Context Protocol servers that centralizes scattered MCP JSON and TOML configuration files on a single machine. It shows which servers are active for supported clients (Claude Desktop, Claude Code, Cursor, VS Code and Codex), lets you inspect each server’s tools and protocol details, and change configurations without manually editing files. The app is designed for local use only — no accounts, no cloud sync — and includes health checks, profiles, backups and guarded atomic writes to keep configurations recoverable and auditable.

KyttoMCP is a local MCP server manager for macOS and Windows. Manage servers across Claude Desktop, Claude Code, Cursor, VS Code and Codex with health checks, profiles and backups.

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Key Features

Unified client matrix

See where each server is active across Claude Desktop, Claude Code, Cursor, VS Code and Codex and switch servers on or off from one view while respecting each client’s own rules.

Built-in and custom sources

Create MCP entries manually or start from a built-in catalog; attach named JSON, JSONC or TOML files as read-only sources distinct from writable clients.

Health inspection

Run an on-demand MCP handshake and view tools, prompts, resources, protocol details, stderr and token-weight estimates to diagnose failing servers.

Profiles

Save and preview local MCP stacks (e.g., Coding, Research, Minimal) and apply profiles with backup and restart safeguards.

Secrets handling

Discover sensitive environment values masked by default, reveal on request, rotate values everywhere they appear, optionally store in Keychain, and restrict config permissions.

Backups & atomic writes

Each write checks for external changes, makes a timestamped backup and writes atomically; browse and restore backups from within the app.

Optional Gateway mode

For supported stdio servers, preview a local Gateway route, move definitions and credentials into native storage, and restore direct mode with one click.

Context optimizer

Estimate full-schema footprint of each server and profile to compare sizes consistently and flag heavy or duplicate definitions.

MCP Doctor

Turn configuration and health evidence into actionable findings (missing env values, relative paths, failed handshakes) with safe fixes previewed before writing.

Live activity (metadata-only)

Review Gateway sessions, tool calls, latency and failures and export safe support reports while keeping arguments, results and payloads out of logs.

Pricing

Free Tier Available

Beta 1.0.6 is free for macOS and Windows with no account, no sign-up and no cloud sync; everything runs locally.

Beta 1.0.6

Free
  • Full functionality of the Beta release on macOS and Windows
  • No account, no sign-up and no cloud service

Use Cases

Centralize MCP configurations

Aggregate scattered JSON/TOML MCP files from multiple clients into a single workspace for easier inspection and management.

Debug failing servers

Use on-demand handshakes, stderr and protocol details to determine why a server refuses to start or fails checks.

Manage environment secrets safely

Find masked sensitive values, reveal or rotate them, optionally copy to Keychain, and control who can edit configurations.

Maintain reproducible profiles and backups

Save local MCP stacks for different workflows, preview changes and rely on timestamped backups and atomic writes for safe rollbacks.

Operate without cloud dependencies

Run and manage MCP servers locally with no account, no cloud sync and no secret upload.

Integrations

Claude Desktop

Detects and manages MCP servers configured for Claude Desktop.

Claude Code

Detects and manages MCP servers configured for Claude Code, including a dedicated toggle.

Cursor

Detects and manages MCP servers configured for Cursor.

VS Code

Detects and manages MCP servers used by the VS Code client.

Codex

Detects and manages MCP servers configured for Codex.

GitHub (issues)

Public GitHub issues are suggested for community bug reports and discussion.

Benefits

Centralized, readable view of MCP servers across multiple AI clients.
Local-first design with no cloud account, no sync and no secret upload.
Automatic timestamped backups and guarded atomic writes to prevent configuration loss.
Diagnostic tools (handshakes, MCP Doctor) that convert evidence into actionable fixes.
Profiles and previews to manage focused setups with safe apply/rollback behavior.

Limitations

Beta release supports only macOS and Windows; Linux is not supported in 1.0.6.
Installer builds are not yet signed with paid Apple or Microsoft developer certificates, which may trigger OS warnings/SmartScreen.
Kytto is local-only and does not provide cloud sync or account-based configuration sharing (by design).

Frequently Asked Questions

What is KyttoMCP?
KyttoMCP is a local control panel for Model Context Protocol servers that reads existing MCP configuration files on your computer and shows which servers are enabled across supported clients so you can inspect, edit and switch them without opening JSON and TOML files manually.
Is KyttoMCP free?
Yes. Beta 1.0.6 is free for macOS and Windows with no account, no sign-up and no cloud service; everything the beta does runs locally.
Which AI clients does it work with?
Claude Desktop, Claude Code, Cursor, VS Code and Codex. Kytto respects each client’s configuration format and rules.
Does Kytto upload my configuration or API keys anywhere?
No. Your MCP configuration, credentials and project files stay on your computer. There is no cloud sync and no secret upload; anonymous diagnostics are optional and payloads cannot carry configuration, paths or error text.
Why does my Mac or Windows PC warn about an unidentified developer?
Kytto is an independent beta not yet signed with paid Apple and Microsoft developer certificates, so systems may show an unidentified developer or SmartScreen warning. The page provides first-launch instructions and SHA-256 checksums to verify downloads.
Can I undo a change Kytto made?
Yes. Every write checks for external changes, makes a timestamped backup, and writes atomically. You can browse backups inside the app and restore an earlier configuration; the replaced version is backed up too.
Do I have to install my MCP servers through Kytto?
No. Kytto works with the servers you already configured and reads existing configuration files. You can add new servers manually or from the built-in catalog without migrating existing setups.
What does context cost mean?
Kytto estimates the full-schema footprint per server and profile as a consistent comparison (not exact per-conversation usage) and flags heavy definitions, unmeasured entries and duplicate tool names for review.
Does Kytto run on Linux?
Not yet. Beta 1.0.6 supports macOS and Windows only; Linux is not supported in this release.

Getting Started

  1. 1 Download the appropriate Beta 1.0.6 build for your platform (macOS Universal .dmg or Windows guided installer .exe).
  2. 2 macOS: Open the DMG, drag KyttoMCP to Applications, then Control-click and choose Open (use System Settings → Privacy & Security → Open Anyway if required).
  3. 3 Windows: Run the downloaded installer, use 'More info' → 'Run anyway' in SmartScreen if shown, and follow the installer steps. Verify SHA-256 checksums if desired.
  4. 4 Follow the included first-launch steps inside the app to discover and attach existing MCP JSON/TOML files and start inspections.

Support

GitHub (public issues)

Open a public GitHub issue to report bugs or follow discussions (link provided on the site).

Private bug report form

A private form on the site sends reports directly to Jakub Studio for bugs; the form asks for reproduction steps and optional contact details.

Contact page

Site contact page and links (Contact, Changelog, Privacy) are available for additional inquiries.

Documentation / Video demo

Short demonstration video and first-launch instructions are available on the download page.

API

Available: No

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