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Whistle MCP Server

@7gugu

RepositoryHomepage

Basic information

Category

Other

License

MIT

Transports

stdio

Author

7gugu

Submitted by

7gugu

About Whistle MCP Server

A Whistle proxy management tool based on Model Context Protocol that allows AI assistants to directly control local Whistle proxy servers, simplifying network debugging, API testing, and proxy rule configuration through natural language interaction.

#ai#network#proxy#mcp#whistle#whistle-plugin#mcp-server

Whistle MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "whistle-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@7gugu/whistle-mcp",
        "--client",
        "claude"
      ]
    }
  }
}

Whistle MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is Whistle MCP Server?

Whistle MCP Server is a Whistle proxy management tool based on the Model Context Protocol (MCP) that allows AI assistants to directly operate and control local Whistle proxy servers. It simplifies network debugging, API testing, and proxy rule management by enabling users to manage rules, groups, values, monitor network requests, and replay/modify requests through natural language interaction with AI.

How to use Whistle MCP Server?

Install via npm install -g whistle-mcp-tool or through Smithery. Configure the server in your MCP client’s JSON config with the Whistle server host, port, and optional authentication credentials. By default the server uses stdio transport; pass --transport http-stream to expose Streamable HTTP and SSE endpoints.

Key features of Whistle MCP Server

  • Rule management: create, update, rename, delete, enable/disable rules
  • Group management: create, rename, delete groups, add/remove rules
  • Value management: create, update, rename, delete values and value groups
  • Proxy control: enable/disable proxy, HTTP/HTTPS interception, HTTP/2 protocol
  • Request interception and replay with URL filtering and custom parameters
  • Multi-rule mode: toggle enabling multiple rules simultaneously

Use cases of Whistle MCP Server

  • Debugging network traffic by managing Whistle rules via natural language
  • Automating proxy configuration changes during API testing sessions
  • Quickly replaying and modifying captured requests for regression testing
  • Enabling/disabling proxy features and interception modes without manual UI use
  • Organizing rules and values into groups for complex proxy workflows

Frequently asked questions

1

What are the runtime requirements for Whistle MCP Server?

Node.js 18.20.0 or newer is required. Older versions are not supported.

2

How do I configure the transport mode?

By default the server uses the `stdio` transport. To expose Streamable HTTP and SSE, pass `--transport http-stream` (also aliased as `sse` or `streamable-http`). The MCP HTTP port defaults to 8085 and the endpoint defaults to `/mcp`.

3

How do I pass authentication credentials to the Whistle proxy?

Use the `--username`/`--password` flags (or their short forms `-n`/`-w`) with the same credentials used when starting Whistle with `w2 start -n <username> -w <password>`. If Whistle has no login, omit these flags.

4

Is there a limit I should be aware of when fetching all values?

The `getAllValues` tool may return a large payload because it includes data fields. Prefer using `getValueList` (index and name only) to avoid large responses.

5

Does Whistle MCP Server support multi-rule mode?

Yes, the `toggleMultiRuleMode` tool allows enabling or disabling the ability to have multiple rules active simultaneously.

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