How to Use the Doppler MCP in Google ADK

Q: Can I filter secrets in Google ADK using Doppler?

Yes, use listsecrets to fetch only the keys you need for a specific config. This keeps your Google ADK context clean and minimizes exposure.

Q: How do I audit changes made by my Google ADK agent in Doppler?

The listactivitylogs tool provides a history of every change. You can monitor exactly what your Google ADK agent updated in your production configs.

Connect your Google ADK agents to Doppler for centralized environment management and secret resolution.

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Connect Doppler MCP to Google ADK

Create your Vinkius account to connect Doppler to Google ADK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Doppler with Google ADK

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Manage Google ADK environment configs

Use `list_environments` to see your staging or production targets. Your Google ADK agent can then select the correct config to perform operations. Call `get_config` to check if an environment is locked before attempting changes. This prevents accidental modifications during critical deployment windows.

Automated secret updates for Google ADK

Update credentials on the fly with `change_secrets`. Your agent passes a JSON object, and the Doppler platform handles the rest of the synchronization. If you need to clean up, `delete_secrets` removes values from the config. Be careful, as these removals are permanent and immediate.

Verify Google ADK agent permissions

Run `get_account` to confirm which workspace your Google ADK agent is currently accessing. This is your primary check for token validity. It returns your email and current permission level. Use this to debug connectivity issues before you run deeper operations like `list_secrets`.

Setup guide

Set up Doppler 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 Doppler 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="Doppler_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Doppler tools via MCP.",
    tools=mcp_tools,
)

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Common questions about Doppler MCP in Google ADK

The MCP server acts as a bridge, exposing Doppler API endpoints as tools. Your Google ADK agent calls these tools to read or write config values.

Yes, use `list_secrets` to fetch only the keys you need for a specific config. This keeps your Google ADK context clean and minimizes exposure.

Data privacy is maintained by the MCP transport layer. Your secrets are accessed only when your Google ADK agent executes a specific tool request.

The `list_activity_logs` tool provides a history of every change. You can monitor exactly what your Google ADK agent updated in your production configs.

You can automate rotation by creating a workflow that calls `change_secrets`. It's a standard operation for maintaining long-lived Google ADK agents.

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