Sherlock MCP Server

The server implements a simple note storage system with: - Custom note:// URI scheme for accessing individual notes - Each note resource has a name

Local serverstdioGo

What is the Sherlock MCP MCP server?

The server implements a simple note storage system with: - Custom note:// URI scheme for accessing individual notes - Each note resource has a name, description and text/plain mimetype. Exposed over MCP by the sherlock mcp mcp server, that capability becomes something an assistant can invoke while it works, not something you go and do afterwards.

Adding it to your client

The server ships on npm as @modelcontextprotocol/inspector, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Its toolset

Everything the assistant can do here goes through one of these:

  • add-note — Adds a new note to the server
  • Resources — The server implements a simple note storage system with: - Custom note:// URI scheme for accessing individual notes - Each note resource has a name
  • Prompts — The server provides a single prompt: - summarize-notes: Creates summaries of all stored notes - Optional "style" argument to control detail level
  • Tools — The server implements one tool: - add-note: Adds a new note to the server - Takes "name" and "content" as required string arguments - Updates server
  • Debugging — Since MCP servers run over stdio, debugging can be challenging. For the best debugging experience, we strongly recommend using the [MCP

Configuration

You will need one environment variable: UV_PUBLISH_TOKEN. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Caveats

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the sherlock mcp mcp server does with a few real requests.

When to reach for it

This sits in the planning and project tracking group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Sherlock MCP's toolset — add-note, Resources, Prompts and 2 more — is a fair guide to whether it matches your workflow. It is maintained by Fewsats; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Available tools

ToolWhat it does
add-noteAdds a new note to the server
ResourcesThe server implements a simple note storage system with: - Custom note:// URI scheme for accessing individual notes - Each note resource has a name, description and text/plain mimetype
PromptsThe server provides a single prompt: - summarize-notes: Creates summaries of all stored notes - Optional "style" argument to control detail level (brief/detailed) - Generates prompt combining all current notes with style
ToolsThe server implements one tool: - add-note: Adds a new note to the server - Takes "name" and "content" as required string arguments - Updates server state and notifies clients of resource changes
DebuggingSince MCP servers run over stdio, debugging can be challenging. For the best debugging experience, we strongly recommend using the [MCP Inspector](https://github.com/modelcontextprotocol/inspector).

How to install the Sherlock MCP MCP server

"mcpServers": {
    "sherlock-mcp": {
      "command": "uv",
      "args": [
        "--directory",
        "/Users/pengren/go/github.com/Fewsats/sherlock-mcp",
        "run",
        "sherlock-mcp"
      ]
    }
  }

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
UV_PUBLISH_TOKENCredential the server authenticates with.Yes

Example prompts to try

  • Use Sherlock MCP to add-note.
  • Use Sherlock MCP to Resources.
  • Use Sherlock MCP to Prompts.

Frequently asked questions

It connects Sherlock MCP to MCP-compatible AI assistants such as Claude and Cursor, exposing 5 tools (add-note, Resources, Prompts, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Sherlock MCP directly.