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MCP My Mac

A lightweight server that exposes Mac system information via a simple API, allowing AI assistants like Claude to access real-time system information about your Mac. This tool is primarily designed for Mac users who want to experiment with AI and Deep Learning on their machines.

Status: BETA - This project is currently in beta. We're actively looking for feedback to improve functionality and user experience. Please share your thoughts and suggestions!

Why Use It?

  • Provides Claude Desktop or other MCP clients with access to your Mac's hardware specifications, system configuration, and resource usage

  • Enables more targeted and accurate assistance for software optimization and troubleshooting

  • Runs as a secure local API with minimal overhead

  • Only executes safe, verified commands:

    • system_profiler - to gather system information

    • conda - to analyze Python environment configurations

Related MCP server: Python Dependency Manager Companion

Installation

Method 1: Using UV + Git Clone

Prerequisites

  • Python 3.8 or higher

  • UV package manager installed

Steps

  1. Clone the repository: bash git clone git@github.com:zhongmingyuan/mcp-my-mac.git

  2. Configure for your AI client:

    [Claude Desktop] Add the following to your MCP server config file:

    "mcpServers": {
        "mcp-my-mac": {
            "command": "uv",
            "args": [
                "--directory",
                "/YOUR_PATH_TO/mcp-my-mac",
                "run",
                "-m",
                "mcp_server_my_mac"
            ]
        }
    }

    Note: Replace /YOUR_PATH_TO with the actual path where you cloned the repository.

    [Cursor] Add tool by selecting "command" in UI:

    uv run --directory /YOUR_PATH_TO/mcp-my-mac mcp_server_my_mac

Usage

After installation, Claude Desktop will automatically connect to this API when running on your Mac, allowing it to access system information when needed for answering your questions or providing assistance.

Available Tools

3 tools
mcp_call_conda_infoA

Get comprehensive information about the Conda installation on this system.

If env_name is provided, it will return the information for the specified
environment as well.

Returns detailed information including:
- Conda version and configuration
- Python version and virtual packages
- Base environment location
- Channel URLs and package cache locations
- Platform and system details
- Complete list of all Conda environments with their paths
- Complete list of all packages in the specified environment and their versions

This is useful for diagnosing Conda-related issues or understanding
the Python environment configuration on this system.
ParametersJSON Schema
NameRequiredDescriptionDefault
env_nameNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

A4.6/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes what the tool returns (detailed information across multiple categories), its optional parameter behavior ('If env_name is provided...'), and its practical use cases. It doesn't mention performance characteristics or error conditions, but covers the core behavior well.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections: purpose statement, parameter behavior explanation, detailed return value breakdown, and use case. Every sentence adds value, and the bulleted list efficiently communicates scope without unnecessary verbosity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (system diagnostic tool with detailed output), the description provides comprehensive coverage: purpose, parameter semantics, detailed output breakdown, and use cases. With an output schema present, the description appropriately focuses on explaining what information is returned rather than technical return values.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 0% schema description coverage and only one parameter, the description adds significant value beyond the schema. It explains that 'env_name' is optional and specifies what happens when it's provided ('returns the information for the specified environment as well'), including that it affects the package list output.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('Get comprehensive information about the Conda installation') and resource ('this system'), distinguishing it from sibling tools like GPU availability or system profiler calls. It provides a detailed scope of what information is retrieved.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description explicitly states when to use this tool ('useful for diagnosing Conda-related issues or understanding the Python environment configuration'), providing clear context. However, it doesn't specify when NOT to use it or mention alternatives to this tool.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

mcp_call_gpu_availableA
Check if GPU is available in torch for a specific conda environment.
Input: torch or tensorflow
if framework is not provided, it will default to torch.

Returns a detailed dictionary with the following information:
- "torch_version": PyTorch version string
- "python_version": Python version string
- "platform": Platform information string
- "processor": Processor type
- "architecture": CPU architecture
- "mps_available": True if MPS (Metal Performance Shaders) is available
- "mps_built": True if PyTorch was built with MPS support
- "mps_functional": True if MPS is functional, False otherwise
- "benchmarks": A list of benchmark results for different matrix sizes, each containing:
  - "size": Matrix size used for benchmark
  - "cpu_time": Time taken on CPU (seconds)
  - "mps_time": Time taken on MPS (seconds)
  - "speedup": Ratio of CPU time to MPS time (higher means MPS is faster)

This helps determine if GPU acceleration via Apple's Metal is properly configured
and functioning, with performance benchmarks for comparison.
ParametersJSON Schema
NameRequiredDescriptionDefault
env_nameYes
frameworkNotorch

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes the tool's behavior: it runs benchmarks, returns detailed diagnostic information, and helps determine GPU configuration status. However, it doesn't mention potential side effects, performance impact, or error conditions that might occur during execution.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured and appropriately sized. It begins with the core purpose, explains parameters, details the return structure, and concludes with the tool's value. Every sentence adds necessary information without redundancy, and the return value documentation is efficiently organized in bullet points.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a diagnostic tool with no annotations and no output schema, the description provides comprehensive information about purpose, parameters, and return values. The detailed return structure documentation compensates for the lack of output schema. However, it doesn't cover potential error cases or execution constraints that might be relevant for a system diagnostic tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 0% schema description coverage, the description must compensate for the schema's lack of parameter documentation. It successfully explains both parameters: 'env_name' is implied through 'specific conda environment,' and 'framework' is explicitly described with its default behavior ('if framework is not provided, it will default to torch'). This adds significant value beyond the bare schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb ('Check if GPU is available') and resource ('in torch for a specific conda environment'), with specific scope about Apple's Metal acceleration. It distinguishes from sibling tools like 'mcp_call_conda_info' and 'mcp_call_mac_system_profiler' by focusing on GPU availability testing rather than general conda or system information.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context about when to use this tool ('to determine if GPU acceleration via Apple's Metal is properly configured and functioning'), but doesn't explicitly state when NOT to use it or mention specific alternatives. The framework parameter guidance ('if framework is not provided, it will default to torch') offers some usage direction.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

mcp_call_mac_system_profilerA
Call the system_profiler with the given datatype. Allow LLM to deepdive into the
system information.
This function is used to get the system information to help user to understand the
system and potentially debug.

Allowed datatypes:
    - SPAirPortDataType - Airport/WiFi information
    - SPApplicationsDataType - Application information
    - SPAudioDataType - Audio device information
    - SPBluetoothDataType - Bluetooth information
    - SPCameraDataType - Camera information
    - SPDiagnosticsDataType - Diagnostic information
    - SPDisplaysDataType - Display and graphics information
    - SPFirewallDataType - Firewall settings
    - SPHardwareDataType - Hardware specifications
    - SPLocationDataType - Location services information
    - SPMemoryDataType - Memory information
    - SPNetworkDataType - Network settings and interfaces
    - SPNVMeDataType - NVMe storage details
    - SPPCIDataType - PCI devices information
    - SPPowerDataType - Battery and power information
    - SPSoftwareDataType - Software and OS information
    - SPStorageDataType - Storage devices and volumes
    - SPThunderboltDataType - Thunderbolt ports and connections
    - SPUSBDataType - USB devices and connections
ParametersJSON Schema
NameRequiredDescriptionDefault
datatypeYes

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

A3.8/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It describes the tool's function and lists datatypes, but doesn't disclose behavioral traits like whether it's read-only, requires permissions, has rate limits, or what the output format is (though an output schema exists). The description adds some context but misses key operational details for a tool with no annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded with the core purpose in the first two sentences, followed by a useful list of datatypes. Every sentence adds value, though the list is lengthy but necessary for clarity. It could be slightly more structured but remains efficient overall.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given one parameter, no annotations, and an output schema (which reduces the need to describe return values), the description is fairly complete. It explains the purpose, usage context, and details all parameter options. However, it lacks behavioral transparency details (e.g., safety, permissions), which holds it back from a perfect score despite the output schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 0% description coverage and only one parameter ('datatype') with no enum. The description compensates fully by listing all allowed datatypes with brief explanations (e.g., 'SPAirPortDataType - Airport/WiFi information'), adding significant meaning beyond the bare schema. This is excellent compensation for low schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Call the system_profiler with the given datatype' and 'get the system information to help user to understand the system and potentially debug.' It specifies the verb ('call'), resource ('system_profiler'), and context ('system information'), though it doesn't explicitly differentiate from sibling tools like mcp_call_conda_info or mcp_call_gpu_available, which prevents a perfect score.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage context ('to help user to understand the system and potentially debug') and lists allowed datatypes, which suggests when to use it for specific information types. However, it lacks explicit guidance on when to choose this tool over alternatives (e.g., sibling tools) or any exclusions, making it moderately helpful but not comprehensive.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

TDQS

A4/5.0
Disambiguation5/5

Each tool has a clearly distinct purpose with no overlap: conda_info focuses on Conda environments, gpu_available checks GPU availability and performance, and mac_system_profiler retrieves system information. The descriptions clearly differentiate their domains, making misselection unlikely.

Naming Consistency5/5

All tools follow a consistent 'mcp_call_' prefix with descriptive snake_case suffixes (conda_info, gpu_available, mac_system_profiler). This uniform pattern makes the tool set predictable and easy to understand.

Tool Count3/5

With only 3 tools, the server feels thin for a 'my-mac' system management scope. While the tools cover Conda, GPU, and system profiling, there are likely other Mac/system-related operations missing, making the set feel incomplete rather than well-scoped.

Completeness2/5

For a Mac system management server, there are significant gaps: no tools for file operations, process management, network utilities, or basic system commands. The three tools provide deep but narrow coverage, leaving many common system tasks unaddressed and likely causing agent failures for broader requests.

Maintenance

ActivityInactive
ResponsivenessSyncing

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