Openmcp Client
All in one vscode plugin for mcp developer
Last verified:
What is Openmcp Client?
OpenMCP is an open-source Model Context Protocol (MCP) client and development platform designed for developers who build AI-powered applications. It provides a unified interface for managing MCP servers, debugging tools, and deploying MCP services to the cloud. The platform combines a VSCode plugin with an SDK to simplify AI Agent development and reduce the full-chain development costs for AI Agents.
The OpenMCP Client is the debugger portion of OpenMCP, a plugin that runs on VSCode-like editors (including VSCode, Trae, Cursor, and Vscodium distributions). It is compatible with all current MCP protocol features and serves as an enhanced replacement for Claude Inspector. Key features include real-time debugging, multi-server support, one-click reproduction, performance metrics, Git version control, and tool inspection. The platform supports local MCP server development and cloud deployment with automated CI/CD pipelines.
OpenMCP is designed for three main audiences: Professional Software Engineers who want to integrate development and testing seamlessly, Open Source Community members who value free and transparent tools with Git version control, and AI Research Scientists who need to quickly build demos and track experiments for academic collaboration. The platform supports MCP servers written in any programming language with official templates for Python, TypeScript/JavaScript, and Java.
The tool offers fast deployment through OpenMCP Cloud, which handles infrastructure, scaling, and monitoring with a single command. Users can manage agents via the left panel, monitor LLM tool details, track performance metrics, and build apps with MCP servers without leaving their editor. The SDK allows developers to quickly create agent instances using TypeScript with simple imports and configuration.
Openmcp Client pricing
Pricing model: Freemium
OpenMCP offers three pricing tiers. Free tier (¥0/mo) includes local MCP Server development, basic VSCode plugin features, local test case management, and community support, but no cloud backup or team collaboration. Pro tier (¥10/mo) for small teams includes cloud backup for 50 test cases, 30-day version history, team collaboration up to 3 members, 1 cloud deployment instance, 1000 API calls per month, and priority email support. Team tier (¥20/mo) for professional teams includes unlimited cloud backup, permanent version history, team collaboration up to 10 members, 5 cloud deployment instances, 10000 API calls per month, and priority technical support. Expert Technical Support is available at ¥799/session for one-on-one consulting from OpenMCP core developers including architecture design, code review, performance optimization, and troubleshooting.
Openmcp Client pros
- Open-source under MIT license, completely free for personal and commercial use
- Real-time debugging with logs, breakpoints, and error tracing
- Supports all current MCP protocol features comprehensively
- Multi-server support for simultaneous debugging of multiple MCP servers
- Git version control for all tests with automatic experiment tracking
- One-click cloud deployment with automated CI/CD pipelines
- Enhanced replacement for Claude Inspector with more features
- Works across VSCode-like editors including VSCode, Trae, and Cursor
- Performance metrics and tool inspection built-in
- Supports any programming language for MCP servers
- Official templates for Python, TypeScript/JavaScript, and Java
- Interactive testing with built-in chat interface and tool invocation panel
- Easy agent management via left panel in the editor
- Quick demo building for research scientists
- Rapid deployment with pre-configured templates
- Multi-model support for different LLMs
- Local test case management included in free tier
Openmcp Client cons
- Free tier has no cloud backup for test cases
- Free tier lacks team collaboration features
- Cloud storage and server-consuming features require subscription
- Pro plan limited to only 3 team members
- Team plan capped at 10 team members
- Free tier has no cloud deployment instances
- Requires understanding MCP basic concepts before starting
- Remote SSE and HTTP connections need manual configuration
- API calls limited to 1000/month on Pro, 10000/month on Team
- Expert technical support costs ¥799 per session
Frequently asked questions about Openmcp Client
What is OpenMCP?
OpenMCP is an open-source Model Context Protocol (MCP) client and development platform. It provides a unified interface for managing MCP servers, debugging tools, building AI-powered applications, and deploying MCP services to the cloud. It combines a VSCode plugin with an SDK for simpler AI Agent development.
How do I get started with OpenMCP?
You can get started by installing OpenMCP via npm: npm install -g openmcp. Then run openmcp to launch the application. Check out the Quick Start Guide for detailed instructions on setting up and using the platform.
Is OpenMCP free to use?
Yes! OpenMCP is completely free and open-source under the MIT license. You can use it for personal projects, commercial applications, and contribute to its development. However, cloud storage and features that consume additional server resources may require a subscription fee.
What programming languages are supported?
OpenMCP supports MCP servers written in any programming language. Official templates are provided for Python, TypeScript/JavaScript, and Java. Servers communicate via stdio or HTTP, so you can use your preferred language and framework.
Can I deploy MCP servers to the cloud?
Absolutely! OpenMCP Cloud allows you to deploy your MCP servers with a single command. The platform handles the infrastructure, scaling, and monitoring so you can focus on building great AI tools. Pro tier includes 1 cloud deployment instance, while Team tier includes 5.
What editors are compatible with OpenMCP Client?
OpenMCP Client runs on VSCode-like editors (VLE), which are general-purpose code editors developed based on the Vscodium core. Typical VLEs include VSCode, Trae, Cursor, and various Vscodium distributions that support the VSCode plugin ecosystem.
How is OpenMCP different from Claude Inspector?
OpenMCP Client addresses Claude Inspector's pain points: it doesn't require starting mcp dev each time, provides more features beyond basic debugging, has no known bugs with SSE/streamable HTTP connections, saves/traces debugging content via Git, and can debug multiple MCP servers simultaneously.
Who is OpenMCP designed for?
OpenMCP is designed for three groups: Professional Software Engineers who want seamless development and testing integration, Open Source Community members who value free transparent tools with Git version control, and AI Research Scientists who need to quickly build demos and track experiments for academic collaboration.
What features are included in the Free tier?
The Free tier includes local MCP Server development, basic VSCode plugin features, local test case management, and community support. It does not include cloud backup or team collaboration features. Local development is unlimited across all tiers.
How do I connect to remote MCP servers?
For remote SSE and Streamable HTTP connections, you need to manually configure the startup options since the port may be in hidden config files or environment variables. Click the OpenMCP icon in the VLE left plugin bar, go to MCP Connection (Workspace) view, click +, select your communication方式, and input the MCP Server address. SSE uses /sse endpoint, Streamable HTTP uses /mcp endpoint by default.