Tools

1. echo: Echoes back the input

   
   
   Input schema:

   {
     "type": "object",
     "properties": {
       "message": {
         "type": "string",
         "description": "Message to echo"
       }
     },
     "required": [
       "message"
     ],
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

2. add: Adds two numbers

   
   
   Input schema:

   {
     "type": "object",
     "properties": {
       "a": {
         "type": "number",
         "description": "First number"
       },
       "b": {
         "type": "number",
         "description": "Second number"
       }
     },
     "required": [
       "a",
       "b"
     ],
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

3. longRunningOperation: Demonstrates a long running operation with progress updates

   
   
   Input schema:

   {
     "type": "object",
     "properties": {
       "duration": {
         "type": "number",
         "default": 10,
         "description": "Duration of the operation in seconds"
       },
       "steps": {
         "type": "number",
         "default": 5,
         "description": "Number of steps in the operation"
       }
     },
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

4. printEnv: Prints all environment variables, helpful for debugging MCP server configuration

   
   
   Input schema:

   {
     "type": "object",
     "properties": {},
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

5. sampleLLM: Samples from an LLM using MCP’s sampling feature

   
   
   Input schema:

   {
     "type": "object",
     "properties": {
       "prompt": {
         "type": "string",
         "description": "The prompt to send to the LLM"
       },
       "maxTokens": {
         "type": "number",
         "default": 100,
         "description": "Maximum number of tokens to generate"
       }
     },
     "required": [
       "prompt"
     ],
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

6. getTinyImage: Returns the MCP_TINY_IMAGE

   
   
   Input schema:

   {
     "type": "object",
     "properties": {},
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

7. annotatedMessage: Demonstrates how annotations can be used to provide metadata about content

   
   
   Input schema:

   {
     "type": "object",
     "properties": {
       "messageType": {
         "type": "string",
         "enum": [
           "error",
           "success",
           "debug"
         ],
         "description": "Type of message to demonstrate different annotation patterns"
       },
       "includeImage": {
         "type": "boolean",
         "default": false,
         "description": "Whether to include an example image"
       }
     },
     "required": [
       "messageType"
     ],
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

8. getResourceReference: Returns a resource reference that can be used by MCP clients

   
   
   Input schema:

   {
     "type": "object",
     "properties": {
       "resourceId": {
         "type": "number",
         "minimum": 1,
         "maximum": 100,
         "description": "ID of the resource to reference (1-100)"
       }
     },
     "required": [
       "resourceId"
     ],
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

9. getResourceLinks: Returns multiple resource links that reference different types of resources

   
   
   Input schema:

   {
     "type": "object",
     "properties": {
       "count": {
         "type": "number",
         "minimum": 1,
         "maximum": 10,
         "default": 3,
         "description": "Number of resource links to return (1-10)"
       }
     },
     "additionalProperties": false,
     "$schema": "http://json-schema.org/draft-07/schema#"
   }
   

   
   
   Output schema:

   null
   

10. structuredContent: Returns structured content along with an output schema for client data validation

    
    
    Input schema:

    {
      "type": "object",
      "properties": {
        "location": {
          "type": "string",
          "minLength": 1,
          "description": "City name or zip code"
        }
      },
      "required": [
        "location"
      ],
      "additionalProperties": false,
      "$schema": "http://json-schema.org/draft-07/schema#"
    }
    

    
    
    Output schema:

    {
      "type": "object",
      "properties": {
        "temperature": {
          "type": "number",
          "description": "Temperature in celsius"
        },
        "conditions": {
          "type": "string",
          "description": "Weather conditions description"
        },
        "humidity": {
          "type": "number",
          "description": "Humidity percentage"
        }
      },
      "required": [
        "temperature",
        "conditions",
        "humidity"
      ],
      "additionalProperties": false,
      "$schema": "http://json-schema.org/draft-07/schema#"
    }
    

11. zip: Compresses the provided resource files (mapping of name to URI, which can be a data URI) to a zip file, which it returns as a data URI resource link.

    
    
    Input schema:

    {
      "type": "object",
      "properties": {
        "files": {
          "type": "object",
          "additionalProperties": {
            "type": "string",
            "format": "uri",
            "description": "URL of the file to include in the zip"
          },
          "description": "Mapping of file names to URLs to include in the zip"
        }
      },
      "required": [
        "files"
      ],
      "additionalProperties": false,
      "$schema": "http://json-schema.org/draft-07/schema#"
    }
    

    
    
    Output schema:

    null