Build customizable Ruby SDK for Model Context Protocol servers inspired by Rails. Rapid development with tools, storage, and deployment options.
Plasma is a Ruby-based SDK designed to simplify the process of building Model Context Protocol (MCP) servers, offering a Rails-inspired, convention-over-configuration approach to empower developers in creating seamless integrations with various AI applications. By leveraging Plasma, you can establish robust connections between your data sources and tools while ensuring compatibility with popular MCP clients like Claude Desktop, Continue, Cursor, and more. This makes it an invaluable tool for anyone looking to enhance their AI application development capabilities.
Plasma provides a comprehensive suite of features, including:
Plasma supports automated project setup using tools like generators, prompts, and resources, adhering to the practical principles of modern Ruby frameworks. This allows for rapid development cycles with minimal configuration overhead.
The server integrates a powerful storage system for handling both session variables and records, ensuring that data remains consistent across multiple interactions.
While Plasma currently supports early-stage implementation of local authentication using Omniauth, future versions will expand on this to offer enhanced security features.
Plasma's architecture is designed around the Model Context Protocol (MCP), with a focus on interoperability and ease of use. The core components include:
graph TD
A[Ai Application] -->|MCP Client| B[Plasma Server]
B --> C[Data Source/Tool]
style A fill:#e1f5fe
style C fill:#f3e5f5
This diagram illustrates the flow of an MCP request from an AI application (MCP client) through to the Plasma server, then reaching a data source or tool for processing.
The protocol flow is designed to be flexible yet standardized, allowing for seamless integration across different environments and services. The high-level protocol ensures that requests are clear and unambiguous, reducing the risk of errors during implementation.
To start using Plasma MCP Server, follow these steps:
3.4
or higher (tested on 3.4.2+
)Install the necessary gems:
gem install plasma-mcp
Create a New Project:
plasma new my_server
cd my_server
Generate Your First Tool:
plasma g tool greeting name:string
Start the Server (in STDIN/STDOUT Mode):
plasma server
Test the Server: Pass a JSON request to see it in action:
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"greeting","arguments":{"name":"Jean-Luc Picard"}}}
You should receive an output:
{"jsonrpc":"2.0","id":1,"result":{"content":[{"type":"text","text":"Hello from GreetingTool with params: Jean-Luc Picard "}],"isError":false}}
Use Plasma to integrate real-time data processing pipelines, where you might need to fetch live data, analyze it, and then return actionable insights quickly.
Example:
# Example Console Session
> GreetingTool.new.call({"name": "Jean-Luc Picard"})
=> {"content": [{"text": "Welcome aboard, Jean-Luc Picard!"}], "isError": false}
Develop a system where users can input their own data or content, and Plasma tools process this information to aid them.
Example:
# Example Console Session for Content Management Tool
> ContentManagementTool.new.call({"input": "user-generated-content"})
=> {"content": [{"text": "Processed user content"}, {"image": "https://example.com/image.png"}], "isError": false}
Plasma is compatible with several popular MCP clients:
This broad compatibility ensures that your AI application can integrate smoothly with a variety of environments and tools.
MCP Client | Resources | Tools | Prompts |
---|---|---|---|
Claude Desktop | ✅ | ✅ | ✅ |
Continue | ✅ | ✅ | ✅ |
Cursor | ❌ | ✅ | ❌ |
This matrix highlights the current support levels for each MCP client, indicating which components can be used seamlessly and which may present challenges.
Configure your application in config/application.rb
to customize settings such as server name or additional parameters:
module MyServer
class Application < Plasma::Application
self.initialize! do |config|
config.name = "My Custom Server Name"
end
end
end
Additionally, ensure secure configuration by setting environment variables properly.
Plasma is designed to support MCP clients by providing a clear and standardized protocol for communication. Each client adheres to the same request format, ensuring seamless interaction regardless of the underlying implementation details.
Yes, you can integrate TensorFlow-based models using dedicated tools in Plasma. The server supports a wide range of APIs that can be customized according to your model's requirements.
Plasma includes basic security measures such as API key validation and rate limiting. For more complex environments, additional configuration is recommended to ensure robust protection against common threats.
First, verify that your MCP client settings are correct. Then, use Plasma's built-in logging features to debug any network-related problems. Comprehensive logs provide insights into communication failures and help in pinpointing where things go wrong.
Yes, Plasma supports role-based access control (RBAC) through environment variables. Administrators can define roles with different levels of permission, ensuring that only authorized users have access to specific tools or resources.
Get started by cloning the repository and running the setup script:
git clone https://github.com/plasma-mcp/plasma.git
cd plasma
bin/setup
Run tests to ensure everything is working correctly:
rake test
For an interactive console, use:
plasma
Contribute by filing issues on GitHub or submitting pull requests with improvements.
Plasma MCP Server is a powerful and flexible SDK that simplifies the process of building interconnected AI applications. Its robust design ensures compatibility with various clients while providing a clear path for developers to extend functionality. By leveraging Plasma, you can enhance your AI applications with seamless integration and state-of-the-art features.
Whether you're building real-time data processing pipelines or managing user-generated content, Plasma provides the tools you need to succeed in an increasingly interconnected world of AI technology.
Note: This documentation is designed specifically for developers working on integrating Model Context Protocol into their projects, emphasizing the practical and technical aspects of Plasma MCP Server.
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