Can I see the most common reason users are trying to cancel?

Yes! Use the `get_session_aggregates` tool. The agent will return grouped data showing which reasons are being selected most frequently in your cancellation flows.

How do I update the billing contact for a customer whose payment failed?

Use the `update_billing_contacts` tool. Provide the customer ID and the new contact details. This ensures Churnkey sends dunning and recovery emails to the right person.

Where do I find my Churnkey Data API Key and App ID?

Log in to your Churnkey dashboard and navigate to **Settings > Account**. You can find your App ID and generate a Data API Key in the API section.

Churnkey MCP Server for Google ADK 8 tools — connect in under 2 minutes

Name: Churnkey
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 8 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Churnkey as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

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Vinkius supports streamable HTTP and SSE.

python

from google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
    StreamableHTTPConnectionParams,
)

# Your Vinkius token. get it at cloud.vinkius.com
mcp_tools = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    )
)

agent = Agent(
    model="gemini-2.5-pro",
    name="churnkey_agent",
    instruction=(
        "You help users interact with Churnkey "
        "using 8 available tools."
    ),
    tools=[mcp_tools],
)

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Churnkey MCP Server

Connect your Churnkey account to any AI agent and take full control of your customer retention and cancellation automation through natural conversation. Streamline how you handle churn and recover failed payments.

Google ADK natively supports Churnkey as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 8 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

What you can do

Session Oversight — List and retrieve details for all customer cancellation flow sessions natively
Aggregation Intelligence — Access grouped session counts to identify trends in churn reasons flawlessly
Recovery Logistics — Update and manage billing recovery contacts for specific customers securely
Retention Deep-Dives — List all cancellation sessions for a specific customer to understand their history flawlessly
Compliance Management — Access and delete customer data for GDPR requests directly within your workspace flawlessly
Data Logistics — Retrieve session metadata including offer types (discounts, pauses) and billing intervals flawlessly

The Churnkey MCP Server exposes 8 tools through the Vinkius. Connect it to Google ADK in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Churnkey to Google ADK via MCP

Follow these steps to integrate the Churnkey MCP Server with Google ADK.

Install Google ADK

Run pip install google-adk

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Create the agent

Save the code above and integrate into your ADK workflow

Explore tools

The agent will discover 8 tools from Churnkey via MCP

Why Use Google ADK with the Churnkey MCP Server

Google ADK provides unique advantages when paired with Churnkey through the Model Context Protocol.

Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution

Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Churnkey

Production-ready features like session management, evaluation, and deployment come built-in. not bolted on

Seamless integration with Google Cloud services means you can combine Churnkey tools with BigQuery, Vertex AI, and Cloud Functions

Churnkey + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Churnkey MCP Server delivers measurable value.

Enterprise data agents: ADK agents query Churnkey and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine Churnkey tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query Churnkey regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Churnkey

Churnkey MCP Tools for Google ADK (8)

These 8 tools become available when you connect Churnkey to Google ADK via MCP:

bulk_update_billing_contacts

Update billing recovery contacts for multiple customers at once

delete_customer_gdpr_data

Delete all data for a customer for GDPR compliance

get_customer_gdpr_data

Access all data stored for a customer for GDPR compliance

get_retention_session_details

Get details for a specific cancellation session

get_session_aggregates

Retrieve grouped session counts

list_customer_retention_history

List all cancellation sessions for a specific customer

list_retention_sessions

List cancellation flow sessions

update_billing_contacts

Update recovery contacts for a specific customer

Example Prompts for Churnkey in Google ADK

Ready-to-use prompts you can give your Google ADK agent to start working with Churnkey immediately.

"Show me the last 5 cancellation sessions in Churnkey."

"What are the session aggregates for this month?"

"List all retention sessions for customer 'cust_123'."

Troubleshooting Churnkey MCP Server with Google ADK

Common issues when connecting Churnkey to Google ADK through the Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

Churnkey + Google ADK FAQ

Common questions about integrating Churnkey MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.