Everything MCP Server

echo

• Simple tool to echo back input messages
• Input:
  • message (string): Message to echo back
• Returns: Text content with echoed message

add

• Adds two numbers together
• Inputs:
  • a (number): First number
  • b (number): Second number
• Returns: Text result of the addition

longRunningOperation

• Demonstrates progress notifications for long operations
• Inputs:
  • duration (number, default: 10): Duration in seconds
  • steps (number, default: 5): Number of progress steps
• Returns: Completion message with duration and steps
• Sends progress notifications during execution

printEnv

• Prints all environment variables
• Useful for debugging MCP server configuration
• No inputs required
• Returns: JSON string of all environment variables

sampleLLM

• Demonstrates LLM sampling capability using MCP sampling feature
• Inputs:
  • prompt (string): The prompt to send to the LLM
  • maxTokens (number, default: 100): Maximum tokens to generate
• Returns: Generated LLM response

getTinyImage

• Returns a small test image
• No inputs required
• Returns: Base64 encoded PNG image data

annotatedMessage

• Demonstrates how annotations can be used to provide metadata about content
• Inputs:
  • messageType (enum: "error" | "success" | "debug"): Type of message to demonstrate different annotation patterns
  • includeImage (boolean, default: false): Whether to include an example image
• Returns: Content with varying annotations:
  • Error messages: High priority (1.0), visible to both user and assistant
  • Success messages: Medium priority (0.7), user-focused
  • Debug messages: Low priority (0.3), assistant-focused
  • Optional image: Medium priority (0.5), user-focused
• Example annotations:

  {
    "priority": 1.0,
    "audience": ["user", "assistant"]
  }

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getResourceReference

• Returns a resource reference that can be used by MCP clients
• Inputs:
  • resourceId (number, 1-100): ID of the resource to reference
• Returns: A resource reference with:
  • Text introduction
  • Embedded resource with type: "resource"
  • Text instruction for using the resource URI

startElicitation

• Initiates an elicitation (interaction) within the MCP client.
• Inputs:
  • color (string): Favorite color
  • number (number, 1-100): Favorite number
  • pets (enum): Favorite pet
• Returns: Confirmation of the elicitation demo with selection summary.

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