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Google Developer Knowledge MCP tool for ADK

Supported in ADKPythonTypeScript

The Google Developer Knowledge MCP server provides programmatic access to Google's public developer documentation, enabling you to integrate this knowledge base into your own applications and workflows. By connecting your ADK agent to Google's official library of documentation, it ensures the code and guidance you receive are up-to-date and based on authoritative context.

Use cases

  • Implementation guidance: Ask for the best way to implement specific features (e.g., push notifications using Firebase Cloud Messaging).
  • Code generation and explanation: Search documentation for code examples, such as listing all buckets in a Cloud Storage project in Python.
  • Troubleshooting and debugging: Query error messages or API key watermarks to quickly resolve issues.
  • Comparative analysis and summarization: Create comparisons between services like Cloud Run and Cloud Functions.

Prerequisites

Installation

You must enable the Developer Knowledge MCP server in your Google Cloud Project. Please refer to the official Installation Guide for the precise gcloud command and instructions.

Use with agent

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

DEVELOPER_KNOWLEDGE_API_KEY = "YOUR_DEVELOPER_KNOWLEDGE_API_KEY"

root_agent = Agent(
    model="gemini-2.5-pro",
    name="google_knowledge_agent",
    instruction="Search Google developer documentation for implementation guidance.",
    tools=[
        McpToolset(
            connection_params=StreamableHTTPConnectionParams(
                url="https://developerknowledge.googleapis.com/mcp",
                headers={"X-Goog-Api-Key": DEVELOPER_KNOWLEDGE_API_KEY},
            ),
        )
    ],
)

import { LlmAgent, MCPToolset } from "@google/adk";

const DEVELOPER_KNOWLEDGE_API_KEY = "YOUR_DEVELOPER_KNOWLEDGE_API_KEY";

const rootAgent = new LlmAgent({
    model: "gemini-2.5-pro",
    name: "google_knowledge_agent",
    instruction: "Search Google developer documentation for implementation guidance.",
    tools: [
        new MCPToolset({
            type: "StreamableHTTPConnectionParams",
            url: "https://developerknowledge.googleapis.com/mcp",
            transportOptions: {
                requestInit: {
                    headers: {
                        "X-Goog-Api-Key": DEVELOPER_KNOWLEDGE_API_KEY,
                    },
                },
            },
        }),
    ],
});

export { rootAgent };

Available tools

Tool name Description
search_documents Searches Google's developer documentation to find relevant pages and snippets for your query
get_documents Retrieves the full page content of multiple documents using the parent reference from search results

Additional resources