How to Use the Hunter MCP in Google ADK

Q: How do I setup the Hunter MCP Server within Google ADK?

Install the ADK package and initialize McpToolset pointing to your Vinkius Hunter endpoint. Pass this toolset directly into your Gemini LlmAgent to give your Google ADK access to Hunter tools like searchdomainemails.

Q: Can my Google ADK agent check my remaining Hunter credits?

Your Google ADK agent calls getaccountusage to verify your available Hunter credits before launching bulk domain searches. This prevents Google ADK execution failures due to exhausted Hunter quotas.

Q: How does Google ADK handle Hunter lead details?

Your Google ADK agent uses getleaddetails to retrieve specific Hunter contact records and enrich them with Vertex AI insights. You can also run listsavedleads to pull batches of Hunter prospects for Google ADK analysis.

Q: Can I limit which tools my Gemini agent can use?

You can use the toolnames filter in your Google ADK setup to restrict access to safe Hunter tools like findpersonemail. This prevents your Gemini agent from executing destructive Hunter actions like removelead without your supervision.

Connect Gemini models with Google ADK to search and verify professional emails using Hunter.

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Connect Hunter MCP to Google ADK

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Setup Hunter with Google ADK

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Long-context domain analysis with Google ADK

The `search_domain_emails` tool feeds bulk Hunter contact data directly into your Gemini model's 1M-token context window using this MCP integration. Your Google ADK agent parses thousands of Hunter listings in a single prompt to map out corporate hierarchies. By combining `get_domain_email_count` with BigQuery data, your Google ADK system targets high-yield Hunter domains first. This prevents your Google ADK enterprise agent from wasting Hunter API credits on inactive companies.

Safe lead generation using Hunter MCP Server

The `verify_email_address` tool validates deliverability before your Google ADK pipeline writes any Hunter data to Vertex AI databases. This step ensures that your Google ADK sales outreach agents only work with verified Hunter leads. If a Hunter contact fails verification, your Google ADK agent searches for alternatives using `find_person_email`. You preserve your Hunter sender reputation while keeping your Google ADK database clean.

Automated lead syncing to CRM folders

The `create_new_lead` tool lets your Google ADK agent save high-intent Hunter prospects directly into structured sales folders. Your Google ADK agent queries `list_lead_folders` to match the Hunter lead with the correct campaign folder automatically. When Hunter contacts change jobs, the Google ADK agent calls `update_lead_info` or `remove_lead` using the MCP transport. You control all these Hunter operations with a single secure Vinkius token inside your Google ADK framework.

Setup guide

Set up Hunter MCP in Google ADK

Prerequisites

Python 3.10+ installed
google-adk package (pip install google-adk)
Active Vinkius subscription with a valid endpoint token

1

Install Google ADK

Run pip install google-adk to install the Agent Development Kit. MCP support is included via the McpToolset class.
2

Connect via SSE transport

Use McpToolset.from_server() with SseServerParams pointing to your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Create an LlmAgent

Pass the returned mcp_tools list directly to LlmAgent(tools=mcp_tools). The ADK maps each MCP tool to a native Gemini function call — no manual schema definitions required.
4

Run with any Gemini model

The agent works with any Gemini model (gemini-2.0-flash, gemini-2.5-pro, etc.). Copy the full example on the right to get started with Hunter tools in your ADK agent.

agent.py

from google.adk.agents import LlmAgent
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import SseServerParams

# Connect to the MCP via SSE
mcp_tools, exit_stack = await McpToolset.from_server(
    connection_params=SseServerParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    )
)

# Create your agent with auto-discovered tools
agent = LlmAgent(
    name="Hunter_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Hunter tools via MCP.",
    tools=mcp_tools,
)

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Hunter. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Hunter MCP in Google ADK

Install the ADK package and initialize `McpToolset` pointing to your Vinkius Hunter endpoint. Pass this toolset directly into your Gemini LlmAgent to give your Google ADK access to Hunter tools like `search_domain_emails`.

Your Google ADK agent calls `get_account_usage` to verify your available Hunter credits before launching bulk domain searches. This prevents Google ADK execution failures due to exhausted Hunter quotas.

Your Google ADK agent uses `get_lead_details` to retrieve specific Hunter contact records and enrich them with Vertex AI insights. You can also run `list_saved_leads` to pull batches of Hunter prospects for Google ADK analysis.

You can use the `tool_names` filter in your Google ADK setup to restrict access to safe Hunter tools like `find_person_email`. This prevents your Gemini agent from executing destructive Hunter actions like `remove_lead` without your supervision.

Vinkius processes all Hunter domain queries and verified emails in an ephemeral, zero-trust sandbox. Your Google ADK system communicates via encrypted HTTP, ensuring no Hunter contact records are ever stored on Vinkius servers.

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