macOS Defaults Server

MCPOpen Source33.0

by g0t4 • Automation & Orchestration

An MCP server that lets agents read, search, and write macOS user defaults (settings) programmatically.

Example Use Cases

1
Programmatically read macOS preference domains and keys to gather current system or app settings.
2
Search across all macOS defaults for specific keys or values to discover configuration state or troubleshoot issues.
3
Automate changing macOS preferences (write settings) as part of configuration workflows, testing, or provisioning.

Description

This MCP server exposes macOS "defaults" functionality over the Model Context Protocol, providing tools equivalent to `defaults domains`, `defaults find`, `defaults read`, and `defaults write`. Agents can list domains, search keys/values, read entire domains or specific keys, and write preference values to automate system or app configuration. It runs over stdio and includes guidance for development and debugging with the MCP Inspector for easier troubleshooting.

Capabilities(4 total)

Tools (4)

list-domains

List all available macOS domains, same as `defaults domains`

find

Find entries container given word

word:string

defaults-read

use the `defaults read <domain> <key>` command

domain:string*key:string

defaults-write

use the `defaults write <domain> <key> <value>` command

domain:string*key:string*value:string*

Quick Actions

View on GitHub

Security

Scanned 3 month(s) ago

Risk Level

MINIMAL

Read-only data retrieval, no side effects

Trust Score

C51/100

5/17 checks passed

Scores are informational only and provided “as is” without warranty. AgentHotspot assumes no liability for actions taken based on these ratings.

Quick Stats

Service TypeMCP

Pricing ModelFree

Capabilities4 Tools / 0 Prompts / 0 Resources

Ownerg0t4

CategoryAutomation & Orchestration

DependenciesStandalone

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