All Classes and Interfaces

Class	Description
AbstractMcpTool<T>	Base class for MCP tools.
ActiveStreamingTool	Manages streaming tool related resources during invocation.
AgentTool	AgentTool implements a tool that allows an agent to call another agent.
AgentTransfer	RequestProcessor that handles agent transfer for LLM flow.
Annotations	Annotations for tools.
Annotations.Schema	The annotation for binding the 'Schema' input.
ApiResponse	The API response contains a response to a call to the GenAI APIs.
ApplicationIntegrationToolset	Application Integration Toolset
AutoFlow	LLM flow with automatic agent transfer support.
BaseAgent	Base class for all agents.
BaseAgentConfig	Base configuration for all agents with subagent support.
BaseAgentConfig.AgentRefConfig	Configuration for referencing other agents (subagents).
BaseArtifactService	Base interface for artifact services.
BaseCodeExecutor	Abstract base class for all code executors.
BaseExampleProvider	An interface that provides examples for a given query.
BaseFlow	Interface for the execution flows to run a group of agents.
BaseLlm	Abstract base class for Large Language Models (LLMs).
BaseLlmConnection	The base class for a live model connection.
BaseLlmFlow	A basic flow that calls the LLM in a loop until a final response is generated.
BaseMemoryService	Base contract for memory services.
BasePlugin	Base class for creating plugins.
BaseRetrievalTool	Base class for retrieval tools.
BaseSessionService	Defines the contract for managing Sessions and their associated Events.
BaseTool	The base class for all ADK tools.
BaseTool.ToolArgsConfig	Configuration class for tool arguments that allows arbitrary key-value pairs.
BaseTool.ToolConfig	Configuration class for a tool definition in YAML/JSON.
BaseToolset	Base interface for toolsets.
Basic	RequestProcessor that handles basic information to build the LLM request.
BuiltInCodeExecutionTool	A built-in code execution tool that is automatically invoked by Gemini 2 models.
BuiltInCodeExecutor	A code executor that uses the Model's built-in code executor.
CallbackContext	The context of various callbacks for an agent invocation.
Callbacks	Functional interfaces for agent lifecycle callbacks.
Callbacks.AfterAgentCallback
Callbacks.AfterAgentCallbackSync	Helper interface to allow for sync afterAgentCallback.
Callbacks.AfterModelCallback
Callbacks.AfterModelCallbackSync	Helper interface to allow for sync afterModelCallback.
Callbacks.AfterToolCallback
Callbacks.AfterToolCallbackSync	Helper interface to allow for sync afterToolCallback.
Callbacks.BeforeAgentCallback
Callbacks.BeforeAgentCallbackSync	Helper interface to allow for sync beforeAgentCallback.
Callbacks.BeforeModelCallback
Callbacks.BeforeModelCallbackSync	Helper interface to allow for sync beforeModelCallback.
Callbacks.BeforeToolCallback
Callbacks.BeforeToolCallbackSync	Helper interface to allow for sync beforeToolCallback.
CallbackUtil	Utility methods for normalizing agent callbacks.
Claude	Represents the Claude Generative AI model by Anthropic.
CodeExecution	Handles Code Execution related logic.
CodeExecutionUtils	Utility functions for code execution.
CodeExecutionUtils.CodeExecutionInput	A structure that contains the input of code execution.
CodeExecutionUtils.CodeExecutionInput.Builder	Builder for CodeExecutionUtils.CodeExecutionInput.
CodeExecutionUtils.CodeExecutionResult	A structure that contains the result of code execution.
CodeExecutionUtils.CodeExecutionResult.Builder	Builder for CodeExecutionUtils.CodeExecutionResult.
CodeExecutionUtils.File	A structure that contains a file name and its content.
CodeExecutionUtils.File.Builder	Builder for CodeExecutionUtils.File.
CodeExecutorContext	The persistent context used to configure the code executor.
CollectionUtils	Frequently used code snippets for collections.
ComponentRegistry	A registry for storing and retrieving ADK instances by name.
ConfigAgentUtils	Utility class for loading agent configurations from YAML files.
ConfigAgentUtils.ConfigurationException	Exception thrown when configuration is invalid.
ConnectionsClient	Utility class for interacting with the Google Cloud Connectors API.
ConnectionsClient.ActionSchema	Represents the schema for an action.
ConnectionsClient.ConnectionDetails	Represents details of a connection.
ConnectionsClient.EntitySchemaAndOperations	Represents the schema and available operations for an entity.
ContainerCodeExecutor	A code executor that uses a custom container to execute code.
Contents	RequestProcessor that populates content in request for LLM flows.
ConversionUtils	Utility class for converting between different representations of MCP tools.
DefaultMcpTransportBuilder	The default builder for creating MCP client transports.
Event	Represents an event in a session.
Event.Builder	Builder for Event.
EventActions	Represents the actions attached to an event.
EventActions.Builder	Builder for EventActions.
EventStream	Iterable stream of Event objects.
Example	Represents an few-shot example.
Example.Builder	Builder for constructing Example instances.
Examples	RequestProcessor that populates examples in LLM request.
ExampleTool	A tool that injects (few-shot) examples into the outgoing LLM request as system instructions.
ExampleTool.Builder
ExampleUtils	Utility class for examples.
ExitLoopTool	Tool for exiting execution of LoopAgent.
FunctionCallingUtils	Utility class for function calling.
Functions	Utility class for handling function calls.
FunctionTool	FunctionTool implements a customized function calling tool.
GcsArtifactService	An artifact service implementation using Google Cloud Storage (GCS).
Gemini	Represents the Gemini Generative AI model.
Gemini.Builder	Builder for Gemini.
GeminiLlmConnection	Manages a persistent, bidirectional connection to the Gemini model via WebSockets for real-time interaction.
GeminiUtil	Request / Response utilities for Gemini.
GetSessionConfig	Configuration for getting a session.
GetSessionConfig.Builder	Builder for GetSessionConfig.
GoogleSearchTool	A built-in tool that is automatically invoked by Gemini 2 models to retrieve search results from Google Search.
HttpApiClient	Base client for the HTTP APIs.
HttpApiResponse	Wraps a real HTTP response to expose the methods needed by the GenAI SDK.
Identity	RequestProcessor that gives the agent identity from the framework
InMemoryArtifactService	An in-memory implementation of the BaseArtifactService.
InMemoryMemoryService	An in-memory memory service for prototyping purposes only.
InMemoryRunner	The class for the in-memory GenAi runner, using in-memory artifact and session services.
InMemorySessionService	An in-memory implementation of BaseSessionService assuming Session objects are mutable regarding their state map, events list, and last update time.
Instruction	Represents an instruction that can be provided to an agent to guide its behavior.
Instruction.Provider	Returns an instruction dynamically constructed from the given context.
Instruction.Static	Plain instruction directly provided to the agent.
Instructions	RequestProcessor that handles instructions and global instructions for LLM flows.
InstructionUtils	Utility methods for handling instruction templates.
IntegrationClient	Utility class for interacting with Google Cloud Application Integration.
IntegrationConnectorTool	Application Integration Tool
InvocationContext	The context for an agent invocation.
JsonBaseModel	The base class for the types that needs JSON serialization/deserialization capability.
ListArtifactsResponse	Response for listing artifacts.
ListArtifactsResponse.Builder	Builder for ListArtifactsResponse.
ListArtifactVersionsResponse	Response for listing artifact versions.
ListArtifactVersionsResponse.Builder	Builder for ListArtifactVersionsResponse.
ListEventsResponse	Response for listing events.
ListEventsResponse.Builder	Builder for ListEventsResponse.
ListSessionsResponse	Response for listing sessions.
ListSessionsResponse.Builder	Builder for ListSessionsResponse.
LiveRequest	Represents a request to be sent to a live connection to the LLM model.
LiveRequest.Builder	Builder for constructing LiveRequest instances.
LiveRequestQueue	A queue of live requests to be sent to the model.
LlmAgent	The LLM-based agent.
LlmAgent.Builder	Builder for LlmAgent.
LlmAgent.IncludeContents	Enum to define if contents of previous events should be included in requests to the underlying LLM.
LlmAgentConfig	Configuration for LlmAgent.
LlmAgentConfig.CallbackRef	Reference to a callback stored in the ComponentRegistry.
LlmCallsLimitExceededException	An error indicating that the limit for calls to the LLM has been exceeded.
LlmRegistry	Central registry for managing Large Language Model (LLM) instances.
LlmRegistry.LlmFactory	The factory interface for creating LLM instances.
LlmRequest	Represents a request to be sent to the LLM.
LlmRequest.Builder	Builder for constructing LlmRequest instances.
LlmResponse	Represents a response received from the LLM.
LlmResponse.Builder	Builder for constructing LlmResponse instances.
LoadArtifactsTool	A tool that loads artifacts and adds them to the session.
LoadMemoryResponse	The response from a load memory tool invocation.
LoadMemoryTool	A tool that loads memory for the current user.
LoggingPlugin	A plugin that logs important information at each callback point.
LongRunningFunctionTool	A function tool that returns the result asynchronously.
LoopAgent	An agent that runs its sub-agents sequentially in a loop.
LoopAgent.Builder	Builder for LoopAgent.
McpAsyncTool	Initializes a MCP tool.
McpAsyncToolset	Connects to a MCP Server, and retrieves MCP Tools into ADK Tools.
McpAsyncToolset.Builder	Builder for McpAsyncToolset
McpSessionManager	Manages MCP client sessions.
McpTool	Initializes a MCP tool.
McpToolException	Base exception for all errors originating from AbstractMcpTool and its subclasses.
McpToolException.McpToolDeclarationException	Exception thrown when there's an error during MCP tool declaration generated.
McpToolset	Connects to a MCP Server, and retrieves MCP Tools into ADK Tools.
McpToolset.McpToolsetConfig	Configuration class for MCPToolset.
McpToolsetException	Base exception for all errors originating from McpToolset.
McpToolsetException.McpInitializationException	Exception thrown when there's an error during MCP session initialization.
McpToolsetException.McpToolLoadingException	Exception thrown when there's an error during loading tools from the MCP server.
McpTransportBuilder	Interface for building McpClientTransport instances.
MemoryEntry	Represents one memory entry.
MemoryEntry.Builder	Builder for MemoryEntry.
Model	Represents a model by name or instance.
Model.Builder	Builder for Model.
ModelNameUtils
NamedToolPredicate
Pairs	Utility class for creating ConcurrentHashMaps.
ParallelAgent	A shell agent that runs its sub-agents in parallel in isolated manner.
ParallelAgent.Builder	Builder for ParallelAgent.
PluginManager	Manages the registration and execution of plugins.
ReadonlyContext	Provides read-only access to the context of an agent run.
RequestProcessor
RequestProcessor.RequestProcessingResult
ResponseProcessor
ResponseProcessor.ResponseProcessingResult
RunConfig	Configuration to modify an agent's LLM's underlying behavior.
RunConfig.Builder	Builder for RunConfig.
RunConfig.StreamingMode	Streaming mode for the runner.
Runner	The main class for the GenAI Agents runner.
SchemaUtils	Utility class for validating schemas.
SearchMemoryResponse	Represents the response from a memory search.
SearchMemoryResponse.Builder	Builder for SearchMemoryResponse.
SequentialAgent	An agent that runs its sub-agents sequentially.
SequentialAgent.Builder	Builder for SequentialAgent.
Session	A Session object that encapsulates the State and Events of a session.
Session.Builder	Builder for Session.
SessionException	Represents a general error that occurred during session management operations.
SessionNotFoundException	Indicates that a requested session could not be found.
SessionUtils	Utility functions for session service.
SingleFlow	Basic LLM flow with fixed request and response processors.
SpeechClientInterface	Interface for a speech-to-text client.
SseServerParameters	Parameters for establishing a MCP Server-Sent Events (SSE) connection.
SseServerParameters.Builder	Builder for SseServerParameters.
State	A State object that also keeps track of the changes to the state.
StdioServerParameters	Parameters for establishing a MCP stdio connection.
StdioServerParameters.Builder	Builder for StdioServerParameters.
StreamableHttpServerParameters	Server parameters for Streamable HTTP client transport.
StreamableHttpServerParameters.Builder	Builder for StreamableHttpServerParameters.
Telemetry	Utility class for capturing and reporting telemetry data within the ADK.
ToolContext	ToolContext object provides a structured context for executing tools or functions.
ToolContext.Builder	Builder for ToolContext.
ToolPredicate	Functional interface to decide whether a tool should be exposed to the LLM based on the current context.
Version	Tracks the current ADK version.
VertexAiCodeExecutor	A code executor that uses Vertex Code Interpreter Extension to execute code.
VertexAiRagRetrieval	A retrieval tool that fetches context from Vertex AI RAG.
VertexAiSessionService	Connects to the managed Vertex AI Session Service.
VertexCredentials	Credentials for accessing Gemini models through Vertex.
VertexCredentials.Builder	Builder for VertexCredentials.
VertexSpeechClient	Implementation of SpeechClientInterface using Vertex AI SpeechClient.