Google Agent Development Kit (ADK)
EcosystemVerifiedGoogle's open-source framework for building, evaluating, and deploying multi-step AI agents, with UCP commerce integration examples.
Google Agent Development Kit (ADK) is an open-source Python framework for building, evaluating, and deploying AI agents. It provides primitives for multi-step agent workflows, tool use, and multi-agent systems. ADK is used in the official UCP A2A sample to build a UCP-compatible shopping agent, making it the canonical framework for building Google-ecosystem-compatible UCP agents. ADK integrates with the A2A Protocol for agent discovery and communication.
Why This Matters for UCP
Google ADK is the official framework for building UCP-compatible AI agents, used in the reference A2A sample and recommended for developers building Gemini-compatible shopping agents.
UCP Capabilities
UCP Endpoint
Ecosystem — Endpoint not yet publicly available
Integration Example
from google.adk.agents import LlmAgent
from ucp_client import UCPClient
# Build a UCP shopping agent with Google ADK
agent = LlmAgent(
name="ShoppingAgent",
model="gemini-2.0-flash",
tools=[UCPClient.discover, UCPClient.checkout]
)Category
Agent FrameworksUCP Status
EcosystemTags
Pricing
free
Reviews
★★★★★4.7 (3 reviews)These are illustrative examples to show what reviews will look like. Submit your own experience below.
R. Kapoor
Platform Engineer · Jan 15, 2026
Integrated in an afternoon. Solid implementation with no unexpected edge cases in production.
J. Santos
Senior Engineer · Feb 28, 2026
Integration was straightforward. The UCP endpoint discovery works as documented and checkout completes in under 2 seconds.
M. Lee
Backend Developer · Mar 3, 2026
Works well for our use case. The documentation is accurate and the implementation matches what the spec describes.
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