How to Use the Lit Protocol (Decentralized Access Control) MCP in Google ADK

Q: How do I connect Lit Protocol (Decentralized Access Control) to my Google ADK agent using this MCP Server?

You initialize McpToolset with the HTTP server URL in your Python code. The Google ADK agent automatically imports tools like executelitaction and addgroup, exposing them directly to your Gemini LLM.

Q: Can Google ADK manage billing for Lit Protocol (Decentralized Access Control)?

Yes, your agent can call getbillingbalance to check your current credits. If the balance is low, the Google ADK agent can trigger createpaymentintent to initiate a credit top-up.

Q: How do I secure API keys when using Lit Protocol (Decentralized Access Control) with Google ADK?

You use addusageapikey to issue scoped keys for specific Gemini workflows. The Google ADK agent can check these keys using checkaccountexists before executing any sensitive operations.

Q: Can I restrict which tools this MCP Server exposes to Gemini?

Yes, you can pass a specific list of tool names to the McpToolset constructor. This prevents Google ADK from exposing administrative tools like removegroup to the LLM.

Run secure decentralized computations on Google ADK using Lit Protocol (Decentralized Access Control).

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Connect Lit Protocol (Decentralized Access Control) MCP to Google ADK

Create your Vinkius account to connect Lit Protocol (Decentralized Access Control) 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 Lit Protocol (Decentralized Access Control) with Google ADK

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Run secure Lit Actions from Google ADK

The `execute_lit_action` tool runs immutable code in a Trusted Execution Environment directly from your Google ADK agent. This MCP Server lets your Gemini models check off-chain data and sign payloads without exposing raw credentials. Your agent triggers this execution by passing the IPFS ID to the tool. The Google ADK handles the long-context validation, ensuring the output from the TEE matches your enterprise compliance rules.

Provision decentralized wallets with Google ADK

This toolset uses `create_wallet` to generate new Programmable Key Pairs for your Google ADK agent. Your Gemini agent requests a wallet, and the server returns the public key while keeping the private key shares distributed. The agent manages these wallets by calling `list_wallets` to check ownership. It then links them to specific datasets in BigQuery to track transactional history securely.

Manage access groups inside your Google ADK agent

The `add_group` tool creates decentralized access groups to organize your PKPs. This MCP Server enables your Google ADK agent to dynamically grant or revoke permissions by adding PKPs to these groups. Your agent uses `add_pkp_to_group` and `remove_pkp_from_group` to modify access rights on the fly. This eliminates the need for hardcoded API keys or centralized databases to manage agent identities.

Setup guide

Set up Lit Protocol (Decentralized Access Control) 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 Lit Protocol (Decentralized Access Control) 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="Lit Protocol (Decentralized Access Control)_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Lit Protocol (Decentralized Access Control) tools via MCP.",
    tools=mcp_tools,
)

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Common questions about Lit Protocol (Decentralized Access Control) MCP in Google ADK

You initialize `McpToolset` with the HTTP server URL in your Python code. The Google ADK agent automatically imports tools like `execute_lit_action` and `add_group`, exposing them directly to your Gemini LLM.

Yes, your agent can call `get_billing_balance` to check your current credits. If the balance is low, the Google ADK agent can trigger `create_payment_intent` to initiate a credit top-up.

You use `add_usage_api_key` to issue scoped keys for specific Gemini workflows. The Google ADK agent can check these keys using `check_account_exists` before executing any sensitive operations.

Yes, you can pass a specific list of tool names to the `McpToolset` constructor. This prevents Google ADK from exposing administrative tools like `remove_group` to the LLM.

They are never stored. The Vinkius V8 Isolate Sandbox executes each tool call in an ephemeral environment, meaning your API keys and wallet metadata are wiped from memory the millisecond the execution finishes.

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