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ESXi

Safety: 45/100

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ESXi MCP Server provides REST APIs for VM management, monitoring, and lifecycle operations on VMware ESXi/vCenter, secured by API key authentication.

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Overview

ESXi MCP Server provides REST APIs for VM management, monitoring, and lifecycle operations on VMware ESXi/vCenter, secured by API key authentication.

The ESXi MCP Server offers convenient VM management but requires careful configuration. Using valid SSL certificates, strong API keys, and restricting access scope are crucial for production environments. The 'insecure' mode should only be used in isolated testing environments.

Performance depends on the underlying ESXi/vCenter server resources and network bandwidth. Large-scale VM operations may impact performance.

Cost considerations include ESXi/vCenter licensing, hardware resources, and network bandwidth. API calls themselves are likely low-cost.

CloudPython52 starsMIT

Connections & Capabilities

Connects To

GitHubTwitter

Capabilities

ReadWriteExecAdmin

Client Compatibility

Claude Desktop

full

Cursor

full

Windsurf

full

VS Code (Copilot)

full

Quickstart

Install

pip install pyvmomi pyyaml uvicorn mcp-core

Environment Variables

MCP_API_KEY

Tools (5)

high

Create VM

Creates a new virtual machine on the ESXi/vCenter server.

Creates a new VM, consuming resources and potentially impacting performance.

high

Clone VM

Clones an existing virtual machine to create a new one.

Clones a VM, consuming resources and potentially impacting performance.

critical

Delete VM

Deletes a virtual machine from the ESXi/vCenter server.

Deletes a VM, resulting in permanent data loss.

high

Power Operations

Performs power operations (on/off) on a virtual machine.

Can disrupt services running on the VM.

safe

Get VM Performance Data

Retrieves performance statistics for a virtual machine.

Read-only operation, no side effects.

Security

Auth Method

API Key

Data Locality

cloud

Known Risks

!Compromised API key leads to unauthorized VM management.
!Insecure SSL configuration exposes sensitive data in transit.
!Insufficient input validation can lead to VM creation failures or unexpected behavior.
!Lack of rate limiting can cause resource exhaustion on the ESXi/vCenter server.
!Improper logging configuration hinders auditing and incident response.

Safety Score

moderate risk

Positive

+API key authentication
+SSL/TLS support for secure connections
+Configurable logging for auditing
+Well-defined API interface

Risks

-Direct access to VM management functions (create, delete, power operations)
-Insecure mode disables SSL verification
-Potential for resource exhaustion if API limits are not enforced
-API key management is the user's responsibility

Use Cases

VM Lifecycle Management

-Automated VM provisioning
-VM cloning for development/testing
-Scheduled VM power operations

Performance Monitoring

-Real-time VM performance dashboards
-Alerting on resource bottlenecks
-Capacity planning

Disaster Recovery

-Automated VM failover
-VM replication
-Backup and restore operations

Who Is This For?

Best For

Small to medium-sized businesses using VMware
Development and testing environments
Automated VM provisioning workflows
Infrastructure monitoring

Not Ideal For

Environments with strict security requirements without proper hardening
Large-scale deployments without proper resource planning
Organizations without VMware expertise

Autonomy & Execution

Default ModeRead and Write enabled

Destructive Tools

Autonomy is fully enabled by default, allowing for complete VM management. Exercise caution when granting access to this server.

StatelessYes

Retry LogicNot documented

ConcurrencyNot documented

Production Tip

Implement robust monitoring and alerting on the ESXi/vCenter server to detect and respond to issues promptly.

FAQ

How do I secure the API key?

Treat the API key like a password. Store it securely and rotate it regularly.

What happens if the ESXi/vCenter server is unavailable?

The server will be unable to manage VMs and API calls will fail. Implement proper error handling and retry logic.

Can I use this server to manage VMs across multiple vCenter instances?

No, this server is designed to connect to a single vCenter instance. You would need multiple instances of the server to manage multiple vCenter instances.

How do I monitor the server's performance?

Monitor the server's CPU, memory, and network usage. Also, monitor the ESXi/vCenter server for resource contention.

What log levels are available?

The available log levels are likely DEBUG, INFO, WARNING, ERROR, and CRITICAL. Use INFO for production and DEBUG for troubleshooting.

How do I configure SSL/TLS?

Ensure that the vCenter server has a valid SSL certificate. If using a self-signed certificate, set 'insecure: true' in the configuration file for testing purposes only.

What are the minimum hardware requirements for the server?

The server requires minimal hardware resources. A small VM with 1-2 vCPUs and 1-2 GB of RAM should be sufficient.

Key Features

MCP Protocol Integration - Enables seamless communication between AI agents and VMware virtual infrastructure.

REST API Interface - Provides standard HTTP-based endpoints for simplified integration with web applications and scripts.

VM Lifecycle Management - Supports remote power-on, power-off, and reset operations for virtual machines.

ESXi and vCenter Support - Offers compatibility across both standalone host and centralized cluster management environments.

API Key Authentication - Ensures secure access control for all management requests sent to the server.

Monitoring Capabilities - Allows for real-time tracking of VM status and operational metrics.

Use Cases & Problems Solved

Use Cases

•Use when you need to programmatically automate virtual machine power cycles and lifecycle management within an ESXi environment.
•Perfect for integrating VMware infrastructure controls directly into LLM-powered workflows via the Model Control Protocol.
•Ideal if you need to build a custom dashboard that monitors VM performance metrics across multiple ESXi or vCenter hosts.
•Great for developers building self-service infrastructure portals that require secure, authenticated VM provisioning.
•Use when you want to execute administrative tasks like VM snapshots or resource allocation through RESTful API endpoints.
•Perfect for streamlining DevOps pipelines that require ephemeral VMware-based test environments to be spun up and torn down automatically.

Problems Solved

✓Eliminates the complexity of manual GUI interactions for repetitive VMware ESXi administrative tasks.
✓Reduces the friction of integrating legacy virtual infrastructure management into modern AI-driven agentic workflows.
✓Removes the need for complex, proprietary VMware-specific SDK implementations by providing standard REST API interfaces.
✓Solves security concerns by providing built-in API key authentication for remote infrastructure management operations.

Who It's For

Infrastructure Automation EngineersCloud Platform DevelopersDevOps Engineers managing hybrid-cloud virtualized environmentsAI Systems IntegratorsSystems Administrators focused on Infrastructure-as-Code (IaC)

Metrics

Discovered2/14/2026

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