ZoomInfo's verified intelligence (100M companies, 500M contacts, billions of buying signals) now powers Google Agent Development Kit (ADK) through GTM.AI, and developers can use ADK to build Custom Data Connectors that enrich GTM Studio Audiences with the signals their agents produce.
ZoomInfo (NASDAQ: GTM), the all-in-one AI GTM platform, today announced a two-way integration with Google Agent Development Kit (ADK), Google's open framework for building multi-agent systems. Developers building agents in ADK can now connect ZoomInfo through a Model Context Protocol (MCP) OAuth application, and they can use ADK itself to build Custom Data Connectors that push agent-produced signals back into GTM Studio Audiences inside ZoomInfo. The connective tissue underneath both flows is GTM.AI, ZoomInfo's headless GTM context layer. GTM.AI exposes ZoomInfo's verified data graph and agentic orchestration through API and MCP, so any framework, agent, or workflow can plug in. With this integration, ADK developers ship agents that read live ZoomInfo data, and ZoomInfo customers route the signals those agents produce back into the audiences they build for outbound.
Key takeaways
Google Agent Development Kit (ADK) is now a verified-data partner of ZoomInfo, with GTM.AI as the GTM Context Layer underneath every ADK-built agent.
The integration runs in two directions. ZoomInfo data enters ADK agents through an MCP OAuth application. Signals from ADK-built agents flow back into ZoomInfo through Custom Data Connectors that feed GTM Studio Audiences.
GTM.AI is the headless GTM context layer. It powers dozens of completed integrations across CRMs, AI assistants, MCP-native agents, and agent frameworks, with the same governance applied everywhere.
The GTM Context Graph behind GTM.AI maintains identity-resolved data on 100M companies, 500M contacts, and billions of signals, continuously updated and continuously queryable.
What is Google Agent Development Kit (ADK)?
Google Agent Development Kit (ADK) is Google's open framework for building multi-agent systems. Developers use ADK to assemble agents that call tools, query data sources, hand off work to other agents, and run inside Google Cloud and Vertex AI. ADK sits alongside frameworks like LangGraph and LangChain, and it ships with native Model Context Protocol support so agents can connect to MCP servers without bespoke glue code.
How does the Google Agent Development Kit and ZoomInfo integration work?
The integration runs both ways.
Direction one. ZoomInfo into Google ADK. Developers register ZoomInfo as an MCP OAuth application inside their ADK project. Once connected, agents call ZoomInfo intelligence directly through MCP. They read verified contact data, account firmographics, technographics, corporate hierarchy, and intent signals. There is no separate enrichment pass, no broker layer, no nightly sync.
Direction two. Google ADK into ZoomInfo GTM Studio Audiences. Developers use ADK itself to build a Custom Data Connector inside ZoomInfo GTM Studio. The connector pushes agent-produced signals (qualification outcomes, agent-routed dispositions, conversation outcomes, etc.) back into GTM Studio Audiences. Marketers and RevOps build outbound audiences that include or exclude contacts based on what the agents observed. The next campaign, the next sequence, the next agent run uses that signal.
What is GTM.AI, and why is it the GTM Context Layer for Google ADK?
GTM.AI is ZoomInfo's headless GTM context layer. It exposes ZoomInfo's verified data graph and agentic orchestration through API and Model Context Protocol (MCP), so any tool, agent, or platform can plug in. Google ADK is one of dozens of completed integrations on GTM.AI, alongside Salesforce Agentforce, HubSpot Breeze, Microsoft Copilot, Gong, LeanData, Glean, Claude, ChatGPT, and Google Workspace.
GTM.AI has two layers and one governance plane. The bottom layer is the GTM Context Graph, which holds identity-resolved data on 100M companies, 500M contacts, and billions of signals. The middle layer is agentic orchestration, which lets agents read from the graph, act on it, and write back. The governance plane sits above both, applying access control, permissioning, data lineage, AI policy, and audit logging consistently across every surface that consumes GTM.AI. ADK-built agents, GTM Studio, and any other framework the customer adopts inherit the same governance posture.
Why does the data layer matter for multi-agent systems?
About 70% of B2B contact data decays every year. A multi-agent system reasoning over stale data scales the wrong answer faster than a single agent would, because every hop between agents compounds the error. Verified data through GTM.AI keeps the reasoning grounded in identity-resolved truth. GTM.AI is the difference between an ADK agent that builds pipeline and one that produces confident-sounding noise. The broader challenge of fueling AI agents with reliable go-to-market intelligence is explored in depth in Beyond the CRM: Fueling AI Agents with Go-to-Market Intelligence.
The same argument runs in reverse for GTM Studio Audiences. An audience built from stale signal is an audience that wastes campaign spend. Pulling fresh agent-observed signals back through the Custom Data Connector keeps the audience aligned with what the agents actually saw and did.
How is the Google ADK and ZoomInfo integration different from a generic data integration?
Native MCP, two-way, no broker. The MCP OAuth application reads ZoomInfo entitlement directly. The Custom Data Connector pushes ADK agent signals back into GTM Studio Audiences directly. No middleware, no CSV swap, no broker tax.
Verified data layer through GTM.AI. Most agent-framework integrations rely on whatever data the developer brings. With GTM.AI as the data layer, ADK agents read from the GTM Context Graph, which is continuously refreshed and identity-resolved at the contact and account level.
Platform-level governance. Access control, data lineage, AI policy, and audit logging apply across both directions of the integration. Customers maintain one governance posture across ZoomInfo, every ADK agent they ship, and any other surface that consumes GTM.AI.
What does this mean for ADK developers and RevOps leaders?
Verified data inside every ADK agent. Developers ship agents that read live ZoomInfo intelligence through MCP, with no custom data plumbing.
Closed-loop audiences. RevOps builds GTM Studio Audiences that respond to what the agents observed, then the next agent run targets the updated audience.
One context layer across the GTM stack. ZoomInfo, every ADK-built agent, the CRM, and any other framework the customer adopts read from the same GTM Context Graph and write back under the same governance.
FAQ: Google Agent Development Kit (ADK), the ZoomInfo integration, and GTM.AI
What is Google Agent Development Kit (ADK)? Google Agent Development Kit (ADK) is Google's open framework for building multi-agent systems. Developers use ADK to assemble agents that call tools, query data sources, hand off to other agents, and run inside Google Cloud and Vertex AI.
What is the Google ADK MCP integration with ZoomInfo? ZoomInfo is registered as a Model Context Protocol (MCP) OAuth application that ADK agents can call directly. Once connected, an ADK agent reads verified ZoomInfo contact, account, firmographic, technographic, and intent data through MCP, without a broker layer.
How does the ZoomInfo and Google ADK integration work? The integration runs in two directions. Developers connect ZoomInfo to ADK through an MCP OAuth application that brings verified contact and account data into every agent they build. They also use ADK to build a Custom Data Connector inside ZoomInfo GTM Studio that pushes agent-produced signals back into GTM Studio Audiences.
What is GTM Studio Audiences? GTM Studio Audiences is the ZoomInfo product for building dynamic outbound and marketing audiences from the GTM Context Graph. With this integration, customers can include or exclude contacts based on signals produced by ADK-built agents.
What is GTM.AI? GTM.AI is ZoomInfo's headless GTM context layer. It exposes ZoomInfo's verified data graph (100M companies, 500M contacts, billions of signals), agentic orchestration, and platform-level governance through API and Model Context Protocol (MCP), so any agent, framework, or workflow can plug in. GTM.AI powers dozens of completed integrations including Salesforce Agentforce, HubSpot Breeze, Microsoft Copilot, Gong, LeanData, Glean, Claude, ChatGPT, and Google Workspace.
Who is the data provider for Google ADK agents when ZoomInfo is connected? ZoomInfo is the data provider, with GTM.AI serving as the GTM Context Layer for Google ADK.
What signals can flow back from Google ADK into GTM Studio Audiences? Signals produced by ADK-built agents, including qualification outcomes, agent-routed dispositions, conversation outcomes, and any other signal the developer chooses to push through the Custom Data Connector. Customers use those signals to build or refine GTM Studio Audiences.
Is Google ADK part of the ZoomInfo platform? No. Google Agent Development Kit (ADK) is an open framework from Google. ZoomInfo and Google are integration partners through GTM.AI.
How does GTM.AI handle governance for the Google ADK integration? GTM.AI's platform layer applies access control, permissioning, data lineage, AI policy, and audit logging consistently across every surface that consumes it. Both directions of the ADK integration inherit that posture, alongside ZoomInfo itself and every other GTM.AI integration.
Why does verified data matter for multi-agent systems? B2B contact data decays at roughly 70% annually. A multi-agent system reasoning over stale data scales the wrong answer with every hop between agents. Verified, continuously refreshed data through the GTM Context Graph is the difference between an agent stack that builds pipeline and one that erodes brand trust at machine scale.
Is the Google ADK integration available now? Yes. The MCP OAuth application and the Custom Data Connector are available to ZoomInfo customers building on Google Agent Development Kit through the ZoomInfo Marketplace.
Availability
The Google Agent Development Kit (ADK) integration is generally available today to ZoomInfo customers. The MCP OAuth application is configured inside the developer's ADK project. The Custom Data Connector is configured inside ZoomInfo GTM Studio.
About ZoomInfo
ZoomInfo (NASDAQ: GTM), the all-in-one AI GTM platform, enables sales, marketing, and customer success teams to execute their go-to-market strategy with confidence. Powered by the industry's most comprehensive B2B data, including more than 100 million companies, 500 million contacts, and billions of signals, ZoomInfo delivers the intelligence, automation, and integrations that modern revenue teams need to identify, engage, and convert their best buyers.
GTM.AI is ZoomInfo's headless GTM context layer. It is the API and Model Context Protocol home for AI agents, powering integrations across Salesforce Agentforce, HubSpot Breeze, Microsoft Copilot, Claude, ChatGPT, and dozens more.
Learn more at zoominfo.com and gtm.ai.
Media contact: Public Relations Team ZoomInfo PR@zoominfo.com
