MCP Server Example

Instructions

Implementation Reference

• server.py:32-36 (handler)

  The save_note tool handler function that saves a note to an in-memory dictionary. Takes a name and content as parameters, stores the note, and returns a confirmation message.

  @mcp.tool()
  def save_note(name: str, content: str) -> str:
      """Save a note with a given name."""
      notes[name] = content
      return f"Note '{name}' saved."

• server.py:32-36 (registration)

  The save_note tool is registered with the MCP server using the @mcp.tool() decorator, making it available as an MCP tool that Claude can invoke.

  @mcp.tool()
  def save_note(name: str, content: str) -> str:
      """Save a note with a given name."""
      notes[name] = content
      return f"Note '{name}' saved."

• server.py:33-34 (schema)

  The save_note tool schema is defined via Python type hints (name: str, content: str) -> str and a docstring that describes the tool's purpose.

  def save_note(name: str, content: str) -> str:
      """Save a note with a given name."""