Google Agent Development Kit
Google Agent Development Kit: A flexible, code-first framework for developers building multi-agent systems. Ranked #4 of 41 in AI Agent Platforms by our editors (9.1/10); pricing: Free plan; best for developers building flexible open-source agents.
At a glance
- Editor score9.1 / 10
- PricingFree plan
- Best forDevelopers building flexible open-source agents
- Free planYes
- Paid fromFree
- Deployment modelBoth
- Facts checked21 Sep 2026
Where it wins
- Supports code-first development in Python, TypeScript, Go, and Java
- Combines multi-agent workflows with voice, multimodal input, and grounding
- Deploys locally, in containers, or across Google Cloud targets
Where it doesn't
- The drag-and-drop visual workflow builder is experimental
- Model, Agent Runtime, and Google Cloud usage may add separate charges
- Its developer-focused approach may not suit no-code-first teams
Our verdict on Google Agent Development Kit
Google Agent Development Kit is an open-source framework for developers creating AI agents and multi-agent applications. It supports code-first development in Python, TypeScript, Go, and Java, while also providing a development web interface and an experimental drag-and-drop visual workflow builder. The product is aimed at teams that want control over agent behavior, orchestration, evaluation, debugging, grounding, and deployment rather than a narrowly packaged agent experience.
Its strongest advantage is breadth across agent design and runtime behavior. ADK supports sequential, loop, parallel, and graph workflows, along with multi-agent composition, delegation, and transfer. Agents can use custom tools, MCP tools, and integrations, and can support live voice with audio and video input. Grounding with private enterprise documents and data stores adds a path for knowledge-based applications. Evaluation, tracing, and debugging tools are also included, which suits developers who need to inspect and refine complex agent behavior.
Deployment and ecosystem fit are equally important. Agents can run locally, in containers, or on Agent Runtime, Cloud Run, Google Kubernetes Engine, and other container infrastructure. Integrations include Agent Search, Knowledge Engine, Google Search, MCP Toolbox for Databases, LiveKit, and Slack. ADK itself is open source and has no published subscription pricing, but agents may incur separate usage charges for models, Agent Runtime, and other Google Cloud services. Choose it for flexible, developer-led agent projects that benefit from Google ecosystem connections and multiple deployment paths. Teams seeking a primarily no-code workflow or a fixed all-in-one pricing model should consider a different approach.
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Google Agent Development Kit pricing
Google Agent Development Kit fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Deployment model | Both |
| Visual agent builder | Yes |
| Multi-agent support | Yes |
| Knowledge grounding | Yes |
| Voice agent support | Yes |
| Human handoff | Yes |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 8 integrations: Agent Search, Knowledge Engine, Google Search, MCP Toolbox for Databases, Cloud Run, Google Kubernetes Engine … See all → |
| Pricing | Free plan |
| Website | adk.dev |
| Facts checked | 21 Sep 2026 |
Google Agent Development Kit integrations
Google Agent Development Kit lists 8 integrations on its own site.
- Agent Search
- Knowledge Engine
- Google Search
- MCP Toolbox for Databases
- Cloud Run
- Google Kubernetes Engine
- LiveKit
- Slack
See all Google Agent Development Kit integrations →
Alternatives to Google Agent Development Kit
- UiPath Agentic AutomationA governed platform for coordinating agents, robots, APIs, workflows, and people.9.4
- Workato AgenticA governed low-code platform for connecting AI agents to business systems and workflows.9.3
- StackAIA broad agent platform for enterprise workflows, governance, and private deployment.9.2
See all Google Agent Development Kit alternatives →
Google Agent Development Kit vs the competition
- Google Agent Development Kit vs UiPath Agentic Automation
- Google Agent Development Kit vs Workato Agentic
- Google Agent Development Kit vs StackAI
- Google Agent Development Kit vs Salesforce Agentforce
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- Google Agent Development Kit vs ServiceNow AI Agent Studio
Compare Google Agent Development Kit with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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