Class McpAsyncToolset

java.lang.Object
com.google.adk.tools.mcp.McpAsyncToolset
All Implemented Interfaces:
BaseToolset, AutoCloseable
public class McpAsyncToolset extends Object implements BaseToolset
Connects to a MCP Server, and retrieves MCP Tools into ADK Tools.

Attributes:

  • connectionParams: The connection parameters to the MCP server. Can be either ServerParameters or SseServerParameters.
  • session: The MCP session being initialized with the connection.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static class 
    McpAsyncToolset.Builder
    Builder for McpAsyncToolset

  • Constructor Summary

    Constructors
    Constructor
    Description
    McpAsyncToolset(SseServerParameters connectionParams, com.fasterxml.jackson.databind.ObjectMapper objectMapper, ToolPredicate toolFilter)
    Initializes the McpAsyncToolset with SSE server parameters.
    McpAsyncToolset(io.modelcontextprotocol.client.transport.ServerParameters connectionParams, com.fasterxml.jackson.databind.ObjectMapper objectMapper, ToolPredicate toolFilter)
    Initializes the McpAsyncToolset with local server parameters.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
    Performs cleanup and releases resources held by the toolset.
    io.reactivex.rxjava3.core.Flowable<BaseTool>
    getTools(ReadonlyContext readonlyContext)
    Return all tools in the toolset based on the provided context.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface com.google.adk.tools.BaseToolset

    isToolSelected

  • Constructor Details

    • McpAsyncToolset

      public McpAsyncToolset(SseServerParameters connectionParams, com.fasterxml.jackson.databind.ObjectMapper objectMapper, ToolPredicate toolFilter)
      Initializes the McpAsyncToolset with SSE server parameters.
      Parameters:
      connectionParams - The SSE connection parameters to the MCP server.
      objectMapper - An ObjectMapper instance for parsing schemas.
      toolFilter - null or an implement for ToolPredicate, NamedToolPredicate

    • McpAsyncToolset

      public McpAsyncToolset(io.modelcontextprotocol.client.transport.ServerParameters connectionParams, com.fasterxml.jackson.databind.ObjectMapper objectMapper, ToolPredicate toolFilter)
      Initializes the McpAsyncToolset with local server parameters.
      Parameters:
      connectionParams - The local server connection parameters to the MCP server.
      objectMapper - An ObjectMapper instance for parsing schemas.
      toolFilter - null or an implement for ToolPredicate, NamedToolPredicate

  • Method Details

    • getTools

      public io.reactivex.rxjava3.core.Flowable<BaseTool> getTools(ReadonlyContext readonlyContext)
      Description copied from interface: BaseToolset
      Return all tools in the toolset based on the provided context.
      Specified by:
      getTools in interface BaseToolset
      Parameters:
      readonlyContext - Context used to filter tools available to the agent.
      Returns:
      A Single emitting a list of tools available under the specified context.

    • close

      public void close()
      Description copied from interface: BaseToolset
      Performs cleanup and releases resources held by the toolset.

      NOTE: This method is invoked, for example, at the end of an agent server's lifecycle or when the toolset is no longer needed. Implementations should ensure that any open connections, files, or other managed resources are properly released to prevent leaks.

      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface BaseToolset