summon-app

The Collaborative Desktop App for Teams to Build, Test, and Manage MCP Servers & AI Agents.

Download the latest release

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The main features of the Summon app are:

Features	Description
OpenAPI to MCP Generation	Import OpenAPI specs, visually select endpoints to include in your MCP server. Combine multiple APIs into a single, cohesive server.
API Auth	Configure authentication for real API calls or use mock servers to test your MCP tools without external dependencies.
External MCP Support	Connect to any existing MCP server (local or remote) via mcp.json configuration. Support for CLI-based servers with automatic tool discovery.
AI Playground	Test MCP tool calling in an interactive chat interface with multiple AI models including OpenAI, Anthropic and more.
Live Tool Editing	Modify tool names, descriptions, and input schemas on the fly without restarting servers. View diffs of your modifications in real-time.
Datasets	Create and manage test datasets with conversation scenarios, expected tool calls, and evaluation criteria. AI-assisted generation of test cases.
Evals	Run evaluations of your MCPs against dataset items. Track performance metrics and tool calling accuracy.

📺 Showcase

https://github.com/user-attachments/assets/f3ff8ef4-2ec8-4aa3-9d30-8d10bdc0b6ea

🚀 Getting Started

1. Download

Grab the latest release for your operating system.

2. Install

Follow the standard installation procedure for your OS:

• macOS: Open the .dmg file and drag Summon.app to your Applications folder.
• Windows: Run the .exe installer.
• Linux: Use the .rpm or .deb package.

3. Launch Summon

[!NOTE]
Keychain Access: You may be prompted to grant keychain access when first using Summon. This is because Summon encrypts and stores API keys locally on your device using your system's secure keychain services. All credentials are stored locally and never sent to external servers.

Open the application and you're ready to go!

🗺️ Roadmap

We have exciting plans for Summon! Our collaborative roadmap, including upcoming features and long-term vision, can be found on our website.

💻 For Developers (Building from Source)

If you want to contribute or run Summon from source:

1. Clone the repository:

   git clone https://github.com/TrySummon/summon-app.git
   cd summon-app
   

2. Install dependencies:

   npm install
   

3. Run the development server:

   npm start
   

4. Build the application:

   npm run make # For your current platform
   

   (See package.json for other build scripts.)

🏗️ Technology Stack

• Electron: For cross-platform desktop application framework.
• Tailwind & shadcn: For the user interface.
• TanStack Router & Query: For routing and data fetching/caching.
• Zustand: For global state management.
• Model Context Protocol SDK: For MCP client/server interactions.
• AI SDK (Vercel AI SDK): For LLM interactions in the Playground.
• Express: For running local MCP servers and API mock servers.

❤️ Contributing

Contributions are welcome! Whether it's bug reports, feature requests, or code contributions, please feel free to:

1. Check our Contribution Guidelines.
2. Open an issue on the GitHub Issues page.
3. Fork the repository and submit a pull request.

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Made with ❤️ by the Summon Team