Hoverfly MCP Server

ASpring Boot-basedModel Context Protocol (MCP)server that exposesHoverflyas a programmable tool for AI assistants likeCursor,Claude Desktop,GitHub Copilot, or any other assistant supporting MCP. It enables dynamic mocking of third-party APIs to unblock development and testing when external services are unavailable.

git clone <repository-url> cd hoverfly-mcp-server mvn clean package java -jar target/hoverfly-mcp-server-<version>.jar

{ "mcpServers": { "hoverfly-mcp": { "command": "docker", "args": [ "run", "-i", "--rm", "-p 8500:8500", "-p 8888:8888", "-v /path/to/your/data:/opt/hoverfly-mcp/simulation-data", "docker.io/kapish88/hoverfly-mcp-server" ] } } }

- 8500: Hoverfly proxy port (mocked services)
- 8888: Hoverfly admin port (mock control API)
- -v /path/to/your/data:/opt/hoverfly-mcp/simulation-data: Mount a volume for simulation persistence

Make sure Docker is installed. The image will be pulled automatically if not available locally.

These tools can be invoked programmatically by AI assistants through the AI Assistant host.

The server supports simulation persistence through a fixed, mounted volume:

When starting Hoverfly withstart_hoverfly_web_server, the server will by default:

- Load the most recent simulation file from/opt/hoverfly-mcp/simulation-data(if available)
- Start with a clean state if no simulation file is found

You can disable auto-load by setting the appropriate parameter.

To persist simulation data across restarts, youmustmount a host directory to/opt/hoverfly-mcp/simulation-datainside the container.
This is the only supported location for persistent data.

Note:The host directory must be writable by the container user.

Simulation files are only saved to this directory when you explicitly invoke the download tool.
- Fork this repo
- Create a feature branch
- Submit a Pull Request

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