slouchd/cyberchef-api-mcp-server

This model context protocol (MCP) server interfaces with the CyberChef Server API. Allowing you to use any LLM/MCP client of your choosing to utilise the tools and resources within CyberChef.
🧰 Available Tools and Resources
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- get_cyberchef_operations_categories: __resource__ - gets updated Cyber Chef categories for additional context / selection of the correct operations
- get_cyberchef_operation_by_category: __resource__ - gets list of Cyber Chef operations for a selected category
- bake_recipe: __tool__ - bake (execute) a recipe (a list of operations) in order to derive an outcome from the input data
- batch_bake_recipe: __tool__ - bake (execute) a recipe (a list of operations) in order to derive an outcome from a batch of input data
- perform_magic_operation: __tool__ - perform CyberChef's magic operation which is designed to automatically detect how your data is encoded and which operations can be used to decode it
📝 Usage
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Start the server using the default stdio transport and specifying an environment variable pointing to a CyberChef API
🧑‍💻Usage (Development)
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Start the server and test it with the MCP inspector
📚 Client Configuration
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The following commands will generate a client configuration file, the location will depend on your operating system
> [!TIP]
> After running the above command you can then tweak the client configuration to include the environment variable for the CyberChef API URL
🔍 Demo
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Using the MCP server in this example use case, the following prerequisites apply:
- You must have Claude desktop installed
- Have a running CyberChef API instance or one you are able to use
Here is a basic prompt being solved using the MCP server tools:
🙇 References
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- CyberChef
- CyberChef Server
- Model Context Protocol