Patronus MCP Server
Patronus MCP Server automates LLM evaluations and experiments, enabling streamlined AI benchmarking and workflow integration for technical teams using FlowHunt.

What does “Patronus” MCP Server do?
The Patronus MCP (Model Context Protocol) Server is a standardized server implementation built for the Patronus SDK, designed to facilitate advanced LLM (Large Language Model) system optimizations, evaluations, and experiments. By connecting AI assistants to external data sources and services, Patronus MCP Server enables streamlined workflows for developers and researchers. It allows users to run single or batch evaluations, execute experiments with datasets, and initialize projects with specific API keys and settings. This extensible platform helps automate repetitive evaluation tasks, supports the integration of custom evaluators, and provides a robust interface for managing and analyzing LLM behavior, ultimately enhancing the AI development lifecycle.
List of Prompts
No prompt templates are explicitly listed in the repository or documentation.
List of Resources
No explicit resources are detailed in the available documentation or repo files.
List of Tools
initialize
Initializes Patronus with API key, project, and application settings. Sets up the system for further evaluations and experiments.evaluate
Runs a single evaluation using a configurable evaluator on given task inputs, outputs, and context.batch_evaluate
Executes batch evaluations with multiple evaluators over provided tasks, producing collective results.run_experiment
Runs experiments using datasets and specified evaluators, useful for benchmarking and comparison.
Use Cases of this MCP Server
LLM Evaluation Automation
Automate the evaluation of large language models by batching tasks and applying multiple evaluators, reducing manual effort in quality assurance and benchmarking.Custom Experimentation
Run tailored experiments with custom datasets and evaluators to benchmark new LLM architectures and compare performance across different criteria.Project Initialization for Teams
Quickly set up and configure evaluation environments for multiple projects using API keys and project settings, streamlining onboarding and collaboration.Interactive Live Testing
Use the provided scripts to interactively test evaluation endpoints, making it easier for developers to debug and validate their evaluation workflows.
How to set it up
Windsurf
- Ensure you have Python and all dependencies installed.
- Locate your Windsurf configuration file (e.g.,
.windsurf
orwindsurf.json
). - Add the Patronus MCP Server with the following JSON snippet:
{ "mcpServers": [ { "command": "python", "args": ["src/patronus_mcp/server.py"], "env": { "PATRONUS_API_KEY": "your_api_key_here" } } ] }
- Save the configuration and restart Windsurf.
- Verify the server is running and accessible.
Claude
- Install Python and dependencies.
- Edit Claude’s configuration file.
- Add Patronus MCP Server with:
{ "mcpServers": [ { "command": "python", "args": ["src/patronus_mcp/server.py"], "env": { "PATRONUS_API_KEY": "your_api_key_here" } } ] }
- Save changes and restart Claude.
- Check connection to ensure proper setup.
Cursor
- Set up Python environment and install requirements.
- Open Cursor’s configuration file.
- Add the Patronus MCP Server configuration:
{ "mcpServers": [ { "command": "python", "args": ["src/patronus_mcp/server.py"], "env": { "PATRONUS_API_KEY": "your_api_key_here" } } ] }
- Save the file and restart Cursor.
- Confirm that the server is available to Cursor.
Cline
- Confirm you have Python and required packages installed.
- Access the Cline configuration file.
- Insert the Patronus MCP Server entry:
{ "mcpServers": [ { "command": "python", "args": ["src/patronus_mcp/server.py"], "env": { "PATRONUS_API_KEY": "your_api_key_here" } } ] }
- Save and restart Cline.
- Test the integration for successful setup.
Securing API Keys:
Place sensitive credentials like PATRONUS_API_KEY
in the env
object of your configuration. Example:
{
"command": "python",
"args": ["src/patronus_mcp/server.py"],
"env": {
"PATRONUS_API_KEY": "your_api_key_here"
},
"inputs": {}
}
How to use this MCP inside flows
Using MCP in FlowHunt
To integrate MCP servers into your FlowHunt workflow, start by adding the MCP component to your flow and connecting it to your AI agent:

Click on the MCP component to open the configuration panel. In the system MCP configuration section, insert your MCP server details using this JSON format:
{
"patronus-mcp": {
"transport": "streamable_http",
"url": "https://yourmcpserver.example/pathtothemcp/url"
}
}
Once configured, the AI agent is now able to use this MCP as a tool with access to all its functions and capabilities. Remember to change “patronus-mcp” to whatever the actual name of your MCP server is and replace the URL with your own MCP server URL.
Overview
Section | Availability | Details/Notes |
---|---|---|
Overview | ✅ | Clear description in README |
List of Prompts | ⛔ | No prompt templates found |
List of Resources | ⛔ | No explicit resources listed |
List of Tools | ✅ | Found in API usage and README |
Securing API Keys | ✅ | Described in README and setup instructions |
Sampling Support (less important in evaluation) | ⛔ | Not referenced |
Roots Support: Not mentioned in the documentation or code.
Based on the information above, Patronus MCP Server provides a solid foundation and essential features for LLM evaluation and experimentation, but lacks documentation or implementation details for prompt templates, resources, and advanced MCP features like Roots and Sampling.
Our opinion
The Patronus MCP Server offers robust evaluation tools and clear setup instructions, but is missing standardized prompts, resource definitions, and some advanced MCP features. It is best suited for technical users focused on LLM evaluation and experimentation. Score: 6/10
MCP Score
Has a LICENSE | ✅ (Apache-2.0) |
---|---|
Has at least one tool | ✅ |
Number of Forks | 3 |
Number of Stars | 13 |
Frequently asked questions
- What is the Patronus MCP Server?
Patronus MCP Server is a standardized server for the Patronus SDK, focused on LLM system optimization, evaluation, and experimentation. It automates LLM evaluations, supports batch processing, and provides a robust interface for AI development workflows.
- What tools does Patronus MCP Server provide?
It includes tools for initializing project settings, running single and batch evaluations, and conducting experiments with datasets and custom evaluators.
- How do I secure my API keys?
Store your API keys in the `env` object of your configuration file. Avoid hard-coding sensitive information in code repositories.
- Can I use Patronus MCP Server with FlowHunt?
Yes, you can integrate Patronus MCP Server as an MCP component inside FlowHunt, connecting it to your AI agent for advanced evaluation and experimentation.
- What are the main use cases for Patronus MCP Server?
Automated LLM evaluation, custom benchmarking experiments, project initialization for teams, and interactive live testing of evaluation endpoints.
Accelerate Your LLM Evaluations with Patronus MCP Server
Integrate Patronus MCP Server into your FlowHunt workflow for automated, robust, and scalable AI model evaluations and experimentation.