## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.SIGN UP
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.LOG IN
Connect Google ADK to Linkup MCP. Find recent articles on quantum computing breakthroughs, summarize top news about generative ai today, and more using natural language, with authentication handled for you.
LinkupLinkup is a powerful web search API built for RAG workflows. Instantly find and retrieve relevant online results to power research, chatbots, and data enrichment.
This guide walks you through connecting Linkup to Google ADK using the Composio tool router. By the end, you'll have a working Linkup agent that can search the web, fetch webpages, generate sourced answers, and check your credit balance through natural language commands.
This guide will help you understand how to give your Google ADK agent real control over a Linkup account through Composio's Linkup MCP server.
Before we dive in, let's take a quick look at the key ideas and tools involved.
Google ADK (Agents Development Kit) is Google's framework for building AI agents powered by Gemini models. It provides tools for creating agents that can use external services through the Model Context Protocol.
Key features include:
The Linkup MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Linkup account. It provides structured and secure access to web search, webpage content, response generation, and account credit information, so your agent can research topics, find relevant sources, retrieve webpage content, generate responses, and check available credits on your behalf.
Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK
The tool router generates a secure MCP URL that your agents can access to perform actions.
The Composio SDK follows a three-phase workflow:
GOOGLE_API_KEY.COMPOSIO_API_KEY.COMPOSIO_USER_ID.pip install google-adk composio python-dotenvInside your virtual environment, install the required packages.
What's happening:
google-adk is Google's Agents Development Kitcomposio connects your agent to Linkup via MCPpython-dotenv loads environment variablesadk create my_agentSet up a new Google ADK project.
What's happening:
.env fileGOOGLE_API_KEY=your-google-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id-or-emailSave all your credentials in the .env file.
What's happening:
GOOGLE_API_KEY authenticates with Google's Gemini modelsCOMPOSIO_API_KEY authenticates with ComposioCOMPOSIO_USER_ID identifies the user for session managementimport os
import warnings
from composio import Composio
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset
load_dotenv()
warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")
GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")
if not GOOGLE_API_KEY:
raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
raise ValueError("COMPOSIO_USER_ID is not set in the environment.")os reads environment variablesComposio is the main Composio SDK clientGoogleProvider declares that you are using Google ADK as the agent runtimeAgent is the Google ADK LLM agent classMcpToolset lets the ADK agent call MCP tools over HTTPcomposio_client = Composio(api_key=COMPOSIO_API_KEY)
composio_session = composio_client.create(
user_id=COMPOSIO_USER_ID,
toolkits=["linkup"],
)
COMPOSIO_MCP_URL = composio_session.mcp.url,
print(f"Composio MCP URL: {COMPOSIO_MCP_URL}")composio_toolset = McpToolset(
connection_params=StreamableHTTPConnectionParams(
url=COMPOSIO_MCP_URL,
headers={"x-api-key": COMPOSIO_API_KEY}
)
)
root_agent = Agent(
model="gemini-2.5-flash",
name="composio_agent",
description="An agent that uses Composio tools to perform actions.",
instruction=(
"You are a helpful assistant connected to Composio. "
"You have the following tools available: "
"COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
"COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
"Use these tools to help users with Linkup operations."
),
tools=[composio_toolset],
)
print("\nAgent setup complete. You can now run this agent directly ;)")McpToolsetinstruction to reduce misnamed tool calls# Run in CLI mode
adk run my_agent
# Or run in web UI mode
adk webExecute the agent from the project root. The web command opens a web portal where you can chat with the agent.
What's happening:
adk run runs the agent in CLI modeadk web . opens a web UI for interactive testingHere's the complete code to get you started with Linkup and Google ADK:
import os
import warnings
from composio import Composio
from composio_google import GoogleProvider
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset
load_dotenv()
warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")
GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")
if not GOOGLE_API_KEY:
raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
raise ValueError("COMPOSIO_USER_ID is not set in the environment.")
composio_client = Composio(api_key=COMPOSIO_API_KEY, provider=GoogleProvider())
composio_session = composio_client.create(
user_id=COMPOSIO_USER_ID,
toolkits=["linkup"],
)
COMPOSIO_MCP_URL = composio_session.mcp.url
composio_toolset = McpToolset(
connection_params=StreamableHTTPConnectionParams(
url=COMPOSIO_MCP_URL,
headers={"x-api-key": COMPOSIO_API_KEY}
)
)
root_agent = Agent(
model="gemini-2.5-flash",
name="composio_agent",
description="An agent that uses Composio tools to perform actions.",
instruction=(
"You are a helpful assistant connected to Composio. "
"You have the following tools available: "
"COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
"COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
"Use these tools to help users with Linkup operations."
),
tools=[composio_toolset],
)
print("\nAgent setup complete. You can now run this agent directly ;)")You've successfully integrated Linkup with the Google ADK through Composio's MCP Tool Router. Your agent can now interact with Linkup using natural language commands.
Key takeaways:
You can extend this setup by adding more toolkits to the toolkits array in your session configuration.
Every Linkup action and event your agent gets out of the box.
Use Linkup MCP with Claude Code
Use Linkup MCP with Cursor
Use Linkup MCP with ChatGPT
Use Linkup MCP with Claude Cowork
Use Linkup MCP with Antigravity
Use Linkup MCP with OpenAI Agents SDK
Use Linkup MCP with Claude Agent SDK
Use Linkup MCP with Muse
Use Linkup MCP with Codex
Use Linkup MCP with Grok Build
Use Linkup MCP with VS Code
Use Linkup MCP with OpenCode
Use Linkup MCP with OpenClaw
Use Linkup MCP with Hermes
Use Linkup MCP with Atomic Agent
Use Linkup MCP with Pi
Use Linkup MCP with DeepSeek Harness
Use Linkup MCP with LangChain
Use Linkup MCP with Vercel AI SDK
Use Linkup MCP with Mastra AI
Use Linkup MCP with LlamaIndex
Use Linkup MCP with CrewAI
Use Linkup MCP with Pydantic AI
Use Linkup MCP with AutoGen
Composio is an integration platform that connects AI agents with hundreds of business tools. It streamlines authentication and lets you trigger actions across services—no custom code needed.
Composio search is a unified web search toolkit spanning travel, e-commerce, news, financial markets, images, and more. It lets you and your apps tap into up-to-date web data from a single, easy-to-integrate service.
Perplexityai delivers natural, conversational AI models for generating human-like text. Instantly get context-aware, high-quality responses for chat, search, or complex workflows.
Browser tool is a virtual browser integration that lets AI agents interact with the web programmatically. It enables automated browsing, scraping, and action-taking from any AI workflow.
Managed auth, hosted MCP servers, and every Linkup tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building