How to integrate Digicert MCP with Google ADK

This guide walks you through connecting Digicert to Google ADK using the Composio tool router. By the end, you'll have a working Digicert agent that can list all intermediate certificates for your account, create a new api key for admin, update the schedule for monthly security reports through natural language commands. This guide will help you understand how to give your Google ADK agent real control over a Digicert account through Composio's Digicert MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

Get started for freeGet a demo
Digicert logoDigicert
Api Key

DigiCert is a global leader in high-assurance TLS/SSL, PKI, and digital signing solutions. It enables secure, trusted digital interactions for enterprises and IoT devices.

101 Tools

Introduction

This guide walks you through connecting Digicert to Google ADK using the Composio tool router. By the end, you'll have a working Digicert agent that can list all intermediate certificates for your account, create a new api key for admin, update the schedule for monthly security reports through natural language commands.

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

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

Also integrate Digicert with

OpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenClawHermesCLILangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Get a Digicert account set up and connected to Composio
  • Install the Google ADK and Composio packages
  • Create a Composio Tool Router session for Digicert
  • Build an agent that connects to Digicert through MCP
  • Interact with Digicert 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 Digicert MCP server, and what's possible with it?

The Digicert MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Digicert account. It provides structured and secure access to your digital certificate management, so your agent can perform actions like auditing users, creating API keys, checking permissions, listing certificates, and updating reports on your behalf.

  • API key management and creation: Let your agent securely generate new API keys for specific users and permissions, ensuring controlled access for your team and services.
  • Permission and access validation: Have your agent check if specific permissions are available before performing sensitive operations, helping you enforce security best practices automatically.
  • Intermediate certificate inventory: Instantly retrieve and review all intermediate certificates in your Digicert account—perfect for audits or compliance checks.
  • User management and auditing: Effortlessly list all CertCentral account users, including detailed information for each user, to streamline management and oversight.
  • Automated report configuration updates: Direct your agent to update scheduled report configurations—changing recipients, formats, or schedules—with just a single instruction.

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:

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

Step-by-step Guide

Step by step09 STEPS
1

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
2

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.
3

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 Digicert via MCP
  • python-dotenv loads environment variables
4

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
5

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
6

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
7

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=["digicert"],
)

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
8

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 Digicert 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
9

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 Digicert 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=["digicert"],
)

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

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

Conclusion

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

Key takeaways:

  • The Tool Router approach dynamically routes requests to the appropriate Digicert 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

Supported Tools

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

Add Tags to Certificate

Tool to add custom tags to one or more certificates for categorization.

Check Permission

Tool to check if a specific permission is available.

Create API Key

Tool to create a new API key with specified permissions.

Create AuthKey

Tool to create a new AuthKey for account authentication.

Create Container IP Rules

Tool to add an IP restriction rule to a CertCentral account.

Create Finance Order Pricing

Tool to get price estimates for a certificate order.

Create Organization

Tool to create a new organization in your DigiCert CertCentral account.

Create Organization Validation

Tool to submit an organization for validation and add verified contacts for specific product types.

List Scan Templates

Tool to retrieve the list of scan templates along with their name, status, and configuration.

Delete Account AuthKey

Tool to delete your account's AuthKey.

Delete Certificate from Discovery

Tool to delete certificates from DigiCert Discovery inventory.

Delete Domain

Tool to delete a domain with the given ID.

Delete SSH Key

Tool to delete SSH keys from DigiCert Discovery.

Delete Discovery Endpoints

Tool to delete one or more endpoints from the Discovery API.

Execute GraphQL Query

Tool to execute GraphQL queries against DigiCert Custom Reports API.

Filter Keys

Tool to filter keys in DigiCert Discovery API by various criteria.

Get Account Details

Tool to retrieve details about your CertCentral account.

Get Account Details

Tool to retrieve account details for the authenticated user.

Get Account Guest Access URL

Tool to retrieve the guest access URL for your DigiCert account.

Get Account Metadata

Tool to retrieve metadata for custom order fields in the account.

Get Account SAML Entity

Tool to retrieve SAML entity details for your account.

Get Agent IP Port Details

Tool to retrieve agent IP port details from DigiCert Discovery API.

Get Alert Count

Tool to retrieve alert count from DigiCert Discovery API dashboard.

Get AuthKey Details

Tool to retrieve AuthKey details by ID.

List Authorized Containers

Tool to list all containers authorized to perform a permission action.

Get Certificate Authority Helper

Tool to retrieve certificate authority API helper information including version details.

Get Certificate Security Rating

Tool to retrieve SSL certificate security rating from DigiCert Discovery API.

Get Cloud Scan Details

Tool to get cloud scan details from DigiCert Discovery API.

Get Container by ID

Tool to get details about a specific container using its ID.

Get Container Children

Tool to list all child containers for a parent container.

Get Container IP Rules

Tool to retrieve a list of existing IP restriction rules in a CertCentral account.

Get Container Order Organizations

Tool to list all organizations assigned to a container.

Get Container Product Limits

Tool to get information about the limits and settings for a container's enabled products.

Get Container Roles

Tool to retrieve all access roles available to a container.

Get Container Template Details

Tool to get details about a template in a container.

Get Domain DCV Information

Tool to retrieve domain DCV (Domain Control Validation) information from DigiCert.

Get Domain DCV Emails

Tool to retrieve email addresses that receive validation emails from DigiCert for the email domain control validation (DCV) method.

Get Domain Expiration Count

Tool to get the number of domains in your account with expired or expiring OV or EV domain validations.

Get Domain Validation Type

Tool to list available validation types for domains.

Get Finance Balance

Tool to view the current balance of your DigiCert account.

Get Finance Balance History

Tool to list balance adjustment history for your DigiCert account.

Get Remote Service Information

Tool to retrieve remote service information from DigiCert Document Manager CSC API.

Get API Key Details

Tool to retrieve detailed information about an API key.

Get MPKI Version

Tool to query the TLM application version from DigiCert MPKI API.

Get Order Certificate Status Changes

Tool to list orders that changed status during a given time frame.

Get Organization Details

Tool to retrieve detailed information about an organization from DigiCert.

Get Organization Contact Info

Tool to retrieve organization and technical contact details for a specific organization.

Get Recent Organizations

Tool to retrieve the three most recently used organizations from your CertCentral account.

Get Organization Validation

Tool to get validation details for an organization.

Get Organization Validation Type

Tool to list available validation types for organizations.

Get Product by Name

Tool to get information about a product by its name identifier.

Get Product Platform Certificate Format Mapping

Tool to list the certificate format that is returned for a particular server platform.

Get Product Pricing

Tool to retrieve a comprehensive list of product prices available under your DigiCert account.

Get Remote Service Info

Tool to retrieve information about DigiCert's Document Manager CSC (Cloud Signature Consortium) remote service.

Get Order Report

Tool to retrieve a CSV report of all certificate orders.

Get Report Order Expiring

Tool to get the number of orders and certificates that expire within 0-30, 30-60, and 60-90 days from now.

Get Report Request Summary

Tool to get total requests and requests by type for your account.

Get Scan Subdomains

Tool to retrieve all subdomains included in a DigiCert Discovery scan.

Get User Details

Tool to retrieve details about a specific user in CertCentral.

Check Username Availability

Tool to check if a username is available in DigiCert.

List API Access Roles

Tool to retrieve a list of available API access roles.

List API Keys

Tool to retrieve a list of API keys and ACME URLs.

List Certificate Filter Values

Tool to retrieve available filter values for certificate attributes from DigiCert Discovery API.

List Certificate Orders

Tool to list all certificate orders in your DigiCert account.

List Certificates

Tool to list all certificates discovered by DigiCert Discovery scans.

List Containers

Tool to retrieve a list of all containers (divisions) in your DigiCert account.

List Container Templates

Tool to list all templates that can be used when creating containers.

List Domain DCV Methods

Tool to retrieve available domain control validation (DCV) methods for domains.

List Domains

Tool to list all domains in your CertCentral account.

List Intermediate Certificates

Tool to retrieve a list of intermediate certificates.

List Locales

Tool to retrieve a list of available locales.

List Organization Potential Approvers

Tool to list all users and contacts that can be validated as verified contacts (also called EV approvers).

List Organizations

Tool to retrieve all organizations in your DigiCert account.

List Permissions

Tool to list all permissions for the authenticated user.

List Available Products

Tool to list all products available to your CertCentral account.

List Sensors

Tool to list all sensors used for network scanning in DigiCert Discovery.

List Service Users

Tool to list all DigiCert service users (API-only users).

List CertCentral Users

Tool to retrieve a list of CertCentral account users.

Resend User Create Email

Tool to resend the create user email to a user.

Submit Domain for Validation

Tool to submit a domain for validation with specified validation types.

Update Account Emails

Tool to update account notification and emergency email addresses.

Update Container

Tool to edit a container's details including name and description.

Update Container Allowed Domain Names

Tool to update a container's allowed domains.

Update Container User Assignments

Tool to update a container's user assignments.

Activate Domain

Tool to activate a domain in DigiCert CertCentral.

Resend Domain DCV Emails

Tool to resend domain control validation (DCV) emails for a domain.

Update API Key

Tool to edit an API key's name or access role restrictions.

Update API Key Status

Tool to activate, deactivate, or revoke a DigiCert API key.

Update Notification Settings

Tool to update CertCentral account notification settings.

Update Organization

Tool to update an organization's details in your DigiCert CertCentral account.

Activate Organization

Tool to activate an organization in DigiCert CertCentral.

Update Organization Contact

Tool to update or replace organization contact and technical contact for an organization.

Deactivate Organization

Tool to deactivate an organization in DigiCert CertCentral.

Update Renewal Email Preference

Tool to enable or disable renewal notifications for SSL/TLS certificates discovered in DigiCert Discovery.

Update Report

Tool to update an existing report’s configuration.

Update User Profile

Tool to update a user's profile information in CertCentral.

Update User Container Assignments

Tool to update container (division) assignments for a user.

Update User Role

Tool to change a user's access role in CertCentral.

Validate VMC Encoded Logo

Tool to validate if an SVG file format is compatible with Verified Mark Certificate (VMC) or Common Mark Certificate (CMC) requirements.

Validate VMC/CMC Logo Format

Tool to validate SVG logo format for Verified Mark Certificates (VMC) or Common Mark Certificates (CMC).

Verify Template

Tool to verify a certificate template structure against DigiCert's validation rules.

FRAMEWORKS

How to build Digicert MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Digicert MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Digicert MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Digicert MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Digicert MCP with Claude Cowork

Codex logo

Codex

Use Digicert MCP with Codex

OpenClaw logo

OpenClaw

Use Digicert MCP with OpenClaw

Hermes logo

Hermes

Use Digicert MCP with Hermes

CLI logo

CLI

Use Digicert MCP with CLI

LangChain logo

LangChain

Use Digicert MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Digicert MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Digicert MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Digicert MCP with LlamaIndex

CrewAI logo

CrewAI

Use Digicert MCP with CrewAI

FAQ

Frequently asked questions

With a standalone Digicert MCP server, the agents and LLMs can only access a fixed set of Digicert tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Digicert 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 Digicert tools.

Yes, absolutely. You can configure which Digicert 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 Digicert data and credentials are handled as safely as possible.

Start with Digicert.It takes 30 seconds.

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

Start building
Customer stories

Teams ship real agents on Composio

GET STARTED FOR FREEBOOK A DEMO
agent.aiZoomLettaGleanHubSpotAWSWabi

Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati
Harsha Gaddipati
Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya
Abhi Arya
Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave
Nirman Dave
CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu
Ryan Yu
Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola
Tomisin Jenrola
Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche
Jerome Leclanche
Co-Founder, Ingram Technologies