ADK

Google ADK × Circle Agent Stack Architecture

v0.3.0 Starter Kit

Autonomous Payment Lifecycle, x402 Micropayments & Boundary Execution

Current State: Ready. Click any node in the diagram or trigger a simulation phase. @agent-stack-ecosystem-kits/google-adk

COMPONENT

Interactive Inspector

Click any block in the architecture diagram to inspect its internal mechanics, execution boundaries, and communication parameters.

Architecture Composition: Reflects the exact turn lifecycle where InMemoryRunner coordinates with SessionService, binds 15 Zod tools to Gemini LLM, and uses beforeToolCallback for spend gating.

Tool Registry (15 Tools)

Zod Validated

loginTool logoutTool fetchSetupSkill fetchSubSkill listAgentWallets createAgentWallet getWalletBalance getGatewayBalance deployWalletTool fundFiatTool searchServices inspectService fetchServiceTool payService [Gate] gatewayDeposit