How to Use the REST Countries MCP in Google ADK

Q: Can I filter the tools exposed to Google ADK from REST Countries?

Yes, use the toolnames filter during setup. This allows you to restrict the agent to only the functions you need.

Connect your Google ADK agents to global datasets using the REST Countries MCP server.

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Connect REST Countries MCP to Google ADK

Create your Vinkius account to connect REST Countries to Google ADK — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

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Setup REST Countries with Google ADK

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Search countries by name in Google ADK

Your agent needs to resolve user mentions to real records. Call `get_country_by_name` to get official or common names from the REST Countries database. It returns structured JSON that your Gemini model understands. Your logic flow remains uninterrupted.

Query by language using Google ADK

Need to find where a language is spoken? The `get_countries_by_language` tool provides the list of countries matching your request. Your agent parses the output and feeds it into your downstream Google Cloud workflows. It's direct data access.

Filter by currency for financial agents

Financial analysis requires accurate geographic context. Use `get_countries_by_currency` to group nations by their legal tender. Your agent can then map this information to other datasets. It saves you from manual lookups.

Setup guide

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

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