Crate adk_server 

adk-server

HTTP server and A2A protocol for ADK agents.

Overview

This crate provides HTTP infrastructure:

• create_app - Create REST API server
• create_app_with_a2a - Add A2A protocol support
• RemoteA2aAgent - Connect to remote A2A agents
• ServerConfig - Server configuration

Quick Start

use adk_server::{create_app, ServerConfig};
use std::sync::Arc;

// let config = ServerConfig { ... };
// let app = create_app(config);
// let listener = tokio::net::TcpListener::bind("0.0.0.0:8080").await?;
// axum::serve(listener, app).await?;

A2A Protocol

Expose agents via Agent-to-Agent protocol:

• GET /.well-known/agent.json - Agent card
• POST /a2a - JSON-RPC endpoint
• POST /a2a/stream - SSE streaming

Re-exports

pub use a2a::A2aClient;

pub use a2a::Executor;

pub use a2a::ExecutorConfig;

pub use a2a::RemoteA2aAgent;

pub use a2a::RemoteA2aAgentBuilder;

pub use a2a::RemoteA2aConfig;

pub use a2a::build_agent_card;

pub use a2a::build_agent_skills;

pub use auth_bridge::RequestContextError;

pub use auth_bridge::RequestContextExtractor;

pub use config::SecurityConfig;

pub use config::ServerConfig;

pub use rest::A2aController;

pub use rest::RuntimeController;

pub use rest::SessionController;

pub use rest::create_app;

pub use rest::create_app_with_a2a;

pub use rest::shutdown_signal;

Modules

a2a

auth_bridge

Auth middleware bridge for flowing authenticated identity into agent execution.

config

rest

ui_protocol

UI protocol constants, capability specs, and normalization.

ui_types

MCP Apps render-option types and validation.

web_ui

Structs

RequestContext

Identity and authorization context extracted from an HTTP request.