🔍 MCP Tester Tool Pro – The Ultimate Tool for Building and Debugging MCP Servers
🚀 Try It Now – MCP Tester Tool Pro
MCP Tester Tool Pro is a next-generation web-based testing environment purpose-built for developers and technical teams working with Model Context Protocol (MCP). Jointly developed by Flowxtra GmbH and Dpro GmbH, this advanced tool enables rapid testing, debugging, and iteration of MCP APIs—all within a streamlined, developer-friendly interface.
🔧 Why MCP Tester Tool Pro?
In the era of LLMs and AI agent integrations, MCP has emerged as a flexible protocol for enabling language models to interact with backend systems through structured tool invocations. Whether you’re building your own MCP server or integrating tools for OpenAI, Anthropic Claude, or any other LLM, having a reliable tester is essential.
MCP Tester Tool Pro accelerates your development with features such as:
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✅ Tool Discovery Configuration
Easily connect to your MCP server’s tool discovery endpoint to load available actions. -
✅ Execute Endpoint Testing
Test any tool execution request in real-time and view complete JSON responses with formatting. -
✅ History Tracking
View and re-use previous requests to iterate quickly during development. -
✅ Saved Endpoints
Manage multiple environments and switch between them seamlessly. -
✅ One-Click Sharing
Share test cases and outputs with team members or stakeholders.
🧠 Built for Developers, by Developers
The tool is not only easy to use but built with a deep understanding of developer needs. Its clean layout, built-in error handling, and detailed response viewer make it ideal for MCP newcomers and advanced LLM engineers alike.
Example Use Cases
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Rapidly test MCP endpoints during LLM agent development
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Validate tool execution results before deploying new features
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Debug malformed requests or tool schemas with clarity
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Share reproducible test cases across development teams
🔜 Coming Soon: MCP Server Generator for OpenAI and More
We’re excited to announce that a full MCP Server generator is currently in development. This will allow you to instantly scaffold an MCP-compliant server that works out-of-the-box with OpenAI and other LLMs. This generator will significantly reduce setup time and ensure your tools conform to MCP standards.
Whether you’re a startup integrating AI into your product or a large-scale enterprise building multi-agent systems, this upcoming feature will help streamline server creation, improve reliability, and boost innovation.
🧪 Explore the Codebase
Check out the GitHub repository and contribute to the open-source ecosystem:
🔗 https://github.com/Dpro-at/mcp-tester
🏢 About the Creators
Flowxtra GmbH and Dpro GmbH are Austrian tech companies focused on AI-powered development tools, recruitment automation, and LLM integration solutions. With a shared commitment to open-source development and next-gen tools, they aim to empower developers and businesses to innovate faster.
