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How to integrate Close MCP with Google ADK

Connect Google ADK to Close MCP. Create a new sales lead for acme corp, log an outbound call with follow-up notes, and more using natural language, with authentication handled for you.

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Api Key

Close is a CRM platform built for sales teams, combining calling, email automation, and predictive dialers. It streamlines sales workflows and boosts productivity with all-in-one communication tools.

70 Tools45 Triggers

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Introduction

This guide walks you through connecting Close to Google ADK using the Composio tool router. By the end, you'll have a working Close agent that can create leads and tasks, log calls and emails, send SMS messages, track opportunities, and review activities through natural language commands.

This guide will help you understand how to give your Google ADK agent real control over a Close account through Composio's Close MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Close with

Claude Code ChatGPT Claude Cowork Antigravity OpenAI Agents SDK Claude Agent SDK Codex OpenClaw Hermes Atomic Agent LangChain Vercel AI SDK Mastra AI LlamaIndex CrewAI Pydantic AI AutoGen

TL;DR

Here's what you'll learn:

Get a Close account set up and connected to Composio
Install the Google ADK and Composio packages
Create a Composio Tool Router session for Close
Build an agent that connects to Close through MCP
Interact with Close using natural language

What is Google ADK?

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:

Gemini Integration: Native support for Google's Gemini models
MCP Toolset: Built-in support for Model Context Protocol tools
Streamable HTTP: Connect to external services through streamable HTTP
CLI and Web UI: Run agents via command line or web interface

What is the Close MCP server, and what's possible with it?

The Close MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Close account. It provides structured and secure access to your sales pipeline, so your agent can perform actions like creating leads, logging calls, sending SMS, managing tasks, and retrieving notes on your behalf.

Lead creation and management: Instantly create new leads with company details and contact information, keeping your CRM fresh and organized without manual entry.
Automated call logging: Have your agent log both inbound and outbound calls to specific leads, capturing call notes, durations, and recordings for seamless tracking.
SMS communication: Direct your agent to send or log SMS messages with leads, enabling timely follow-ups and improved client engagement.
Task management: Let your agent create tasks, set due dates, and track completion, making sure nothing slips through the cracks in your sales workflow.
Note retrieval and analysis: Fetch notes by lead or date, so your agent can summarize past interactions, surface important insights, or prepare for upcoming calls.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

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.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS

Prerequisites

Before starting, make sure you have:

A Google API key for Gemini models
A Composio account and API key
Python 3.9 or later installed
Basic familiarity with Python

Getting API Keys for Google and Composio

Google API Key

Go to Google AI Studio and create an API key.
Copy the key and keep it safe. You will put this in GOOGLE_API_KEY.

Composio API Key and User ID

Log in to the Composio dashboard.
Go to Settings → API Keys and copy your Composio API key. Use this for COMPOSIO_API_KEY.
Decide on a stable user identifier to scope sessions, often your email or a user ID. Use this for COMPOSIO_USER_ID.

Install dependencies

bash

pip install google-adk composio python-dotenv

Inside your virtual environment, install the required packages.

What's happening:

google-adk is Google's Agents Development Kit
composio connects your agent to Close via MCP
python-dotenv loads environment variables

Set up ADK project

bash

adk create my_agent

Set up a new Google ADK project.

What's happening:

This creates an agent folder with a root agent file and .env file

Set environment variables

bash

GOOGLE_API_KEY=your-google-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id-or-email

Save all your credentials in the .env file.

What's happening:

GOOGLE_API_KEY authenticates with Google's Gemini models
COMPOSIO_API_KEY authenticates with Composio
COMPOSIO_USER_ID identifies the user for session management

Import modules and validate environment

python

import 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.")

What's happening:

os reads environment variables
Composio is the main Composio SDK client
GoogleProvider declares that you are using Google ADK as the agent runtime
Agent is the Google ADK LLM agent class
McpToolset lets the ADK agent call MCP tools over HTTP

Create Composio client and Tool Router session

python

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["close"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url,
print(f"Composio MCP URL: {COMPOSIO_MCP_URL}")

What's happening:

Authenticates to Composio with your API key
Declares Google ADK as the provider
Spins up a short-lived MCP endpoint for your user and selected toolkit
Stores the MCP HTTP URL for the ADK MCP integration

Set up the McpToolset and create the Agent

python

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 Close operations."
    ),
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")

What's happening:

Connects the ADK agent to the Composio MCP endpoint through McpToolset
Uses Gemini as the model powering the agent
Lists exact tool names in instruction to reduce misnamed tool calls

Run the agent

bash

# Run in CLI mode
adk run my_agent

# Or run in web UI mode
adk web

Execute 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 mode
adk web . opens a web UI for interactive testing

Complete Code

Here's the complete code to get you started with Close and Google ADK:

python

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=["close"],
)

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 Close operations."
    ),  
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")

Conclusion

You've successfully integrated Close with the Google ADK through Composio's MCP Tool Router. Your agent can now interact with Close using natural language commands.

Key takeaways:

The Tool Router approach dynamically routes requests to the appropriate Close tools
Environment variables keep your credentials secure and separate from code
Clear agent instructions reduce tool calling errors
The ADK web UI provides an interactive interface for testing and development

You can extend this setup by adding more toolkits to the toolkits array in your session configuration.

TOOLS & TRIGGERS

Supported Tools and Triggers

Every Close action and event your agent gets out of the box.

Create Call

Creates a new call record in Close.

Create Contact

Create a contact on an existing Close lead, or create a new lead named after the contact when lead_id is omitted.

Create Custom Activity

Create a draft or published custom activity instance on a Close lead.

Create Custom Field

Create a custom-field definition for Close leads or opportunities.

Create Email

Create or log a Close email activity.

Create Lead

Creates a new lead in Close CRM.

Create Note

Create a plaintext or rich-text note activity on a Close lead.

Create Opportunity

Create a Close sales opportunity on an existing lead, or create an Untitled lead for it when lead_id is omitted.

Create Sequence

Create a Close sales sequence with ordered call or email steps.

Create SMS Message

Create an SMS activity on a Close lead to log received, sent, or draft messages, or to send or schedule a message.

Create Task

Create a Close task associated with a lead, using task text and an actionable date, with optional completion status and assignment.

Delete Activity Custom Field

Permanently delete one Close activity custom-field definition by ID.

Delete Call

This tool allows you to delete a specific call activity in Close.

Delete Custom Activity

Permanently delete one Close custom activity instance by ID.

Delete Email

This tool allows you to permanently delete a specific email activity in Close.

Delete Lead

Permanently delete one Close lead by ID.

Delete Lead Custom Field

Permanently delete a Close lead custom-field definition and its values.

Delete Note

Permanently delete one Close note activity by ID.

Delete Opportunity

Permanently delete one Close opportunity by ID.

Delete Opportunity Status

Permanently delete an unused Close opportunity status; this cannot be undone.

Delete SMS

Permanently delete one Close SMS activity by ID.

Download File

Download bytes from a provider-issued Close Files API URL.

Get Activity Custom Field

Retrieve one Close activity custom-field definition by ID.

Get Call

Retrieve one Close call activity by ID with optional field projection.

Get Contact

Retrieve one Close contact by ID, optionally limiting returned fields.

Get Created Activity

Retrieve one Close lead-creation activity with optional field projection.

Get Email

Retrieve one Close email activity by ID with optional field projection.

Get Event

Retrieve one Close event-log record by event ID.

Get Lead

Retrieve one Close lead by ID with optional field projection.

Get Lead Custom Field

Retrieve one Close lead custom-field definition by ID.

Get Notes

This tool retrieves a list of note activities from Close.

Get Note by ID

Retrieve one Close note activity by ID with optional field projection.

Get Opportunity

Retrieve one Close opportunity by ID with optional field projection.

Get Sequence

Retrieve one Close sequence by ID with its workflow configuration.

Get Shared Custom Field

Retrieve one Close shared custom-field definition by ID.

Get SMS

Retrieve one Close SMS activity by ID with optional field projection.

Get Task

Retrieve one Close task by ID with optional field projection.

Get User

Retrieve one Close organization user by ID with optional field projection.

List Activities

Lists one page of Close email or call activities using documented filters.

List Contacts

List Close contacts with lead filtering, projection, and offset pagination.

List Custom Activities

List Close custom activity instances with filters and offset pagination.

List Custom Activity Types

This tool lists the custom activity types defined in a Close organization, returning each type's id and name.

List Custom Objects

List custom object instances attached to a Close lead, optionally by type.

List Custom Object Types

This tool lists the custom object types defined in a Close organization, returning each type's id and name.

List Events

List Close change events with filters, projection, and cursor pagination.

List Lead Custom Fields

List Close lead custom-field definitions with projection and pagination.

List Leads

List or text-search Close leads with field projection and offset pagination.

List Lead Statuses

List the configured lead statuses for the connected organization.

List Opportunities

List a page of Close opportunities with offset pagination.

List Opportunity Custom Fields

List Close opportunity custom-field definitions with projection and pagination.

List Opportunity Statuses

List the configured opportunity statuses for the connected organization.

List Outcomes

List Close call and meeting outcomes with projection and offset pagination.

List Pipelines

List pipelines and their ordered opportunity statuses.

List Sequences

List Close sales sequences with offset pagination.

List Sequence Subscriptions

List Close sequence subscriptions.

List Tasks

List Close tasks using task, assignee, lead, date, and pagination filters.

List Unified Activities

List one page of Close activities across all types and matching filters.

List Users

List users in the connected Close organization with offset pagination.

List Webhook Subscriptions

List webhook subscriptions configured for the Close organization.

Search Data

Search Close objects using the structured Advanced Filtering query language.

Update Activity Custom Field

Update mutable settings of one Close activity custom-field definition.

Update Contact

Update standard and custom fields on one existing Close contact.

Update Custom Activity

Update standard and custom fields on one Close custom activity instance.

Update Email

Update an existing Close email activity.

Update Lead Custom Field

Update a Close lead custom-field definition.

Update Note

Update the mutable content and metadata of one Close note activity.

Update Opportunity

Update standard and custom fields on one Close opportunity.

Update Sequence

Update a Close sequence name or replace its entire ordered step list.

Update Task

Update assignment, actionable date, or completion state on a Close task; lead tasks can also update text.

Who Am I

Return the identity (email, name) of the connected Close account.

FRAMEWORKS

How to build Close MCP Agent with another framework

Claude Code

Use Close MCP with Claude Code

ChatGPT

Use Close MCP with ChatGPT

Claude Cowork

Use Close MCP with Claude Cowork

Antigravity

Use Close MCP with Antigravity

OpenAI Agents SDK

Use Close MCP with OpenAI Agents SDK

Claude Agent SDK

Use Close MCP with Claude Agent SDK

Codex

Use Close MCP with Codex

OpenClaw

Use Close MCP with OpenClaw

Hermes

Use Close MCP with Hermes

Atomic Agent

Use Close MCP with Atomic Agent

LangChain

Use Close MCP with LangChain

Vercel AI SDK

Use Close MCP with Vercel AI SDK

Mastra AI

Use Close MCP with Mastra AI

LlamaIndex

Use Close MCP with LlamaIndex

CrewAI

Use Close MCP with CrewAI

Pydantic AI

Use Close MCP with Pydantic AI

AutoGen

Use Close MCP with AutoGen

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Pipedrive

Oauth2Api Key

Pipedrive is a sales management platform offering pipeline visualization, lead tracking, and workflow automation. It helps sales teams keep deals moving forward efficiently and never miss a follow-up.

Salesforce

Oauth2S2s Oauth2

Salesforce is a leading CRM platform that helps businesses manage sales, service, and marketing. It centralizes customer data, enabling teams to drive growth and build strong relationships.

Apollo

Api Key

Apollo is a CRM and lead generation platform that helps businesses discover contacts and manage sales pipelines. Use it to streamline customer outreach and track your deals from one place.

Attio

Oauth2

Attio is a customizable CRM and workspace for managing your team's relationships and workflows. It helps teams organize contacts, automate tasks, and collaborate more efficiently.

FAQ

Frequently asked questions

With a standalone Close MCP server, the agents and LLMs can only access a fixed set of Close tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Close and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Google ADK fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Close tools.

Yes, absolutely. You can configure which Close scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Close data and credentials are handled as safely as possible.

Start with Close.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Close tool your agent needs.Free to start.

Start building

How to integrate Close MCP with Google ADK

Connect Close without auth hassles

Introduction

Also integrate Close with

TL;DR

What is Google ADK?

What is the Close MCP server, and what's possible with it?

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

How the Composio SDK works

Step-by-step Guide

Prerequisites

Getting API Keys for Google and Composio

Install dependencies

Set up ADK project

Set environment variables

Import modules and validate environment

Create Composio client and Tool Router session

Set up the McpToolset and create the Agent

Run the agent

Complete Code

Conclusion

Supported Tools and Triggers

How to build Close MCP Agent with another framework

Claude Code

ChatGPT

Claude Cowork

Antigravity

OpenAI Agents SDK

Claude Agent SDK

Codex

OpenClaw

Hermes

Atomic Agent

LangChain

Vercel AI SDK

Mastra AI

LlamaIndex

CrewAI

Pydantic AI

AutoGen

Explore Other Toolkits

Pipedrive

Salesforce

Apollo

Attio

Frequently asked questions

What are the differences in Tool Router MCP and Close MCP?

Can I use Tool Router MCP with Google ADK?

Can I manage the permissions and scopes for Close while using Tool Router?

How safe is my data with Composio Tool Router?

Start with Close.It takes 30 seconds.