How to integrate Swaggerhub MCP with Google ADK

This guide walks you through connecting Swaggerhub to Google ADK using the Composio tool router. By the end, you'll have a working Swaggerhub agent that can list all apis i have access to, create a new api named petstore, update the description for your orders api through natural language commands. This guide will help you understand how to give your Google ADK agent real control over a Swaggerhub account through Composio's Swaggerhub MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Swaggerhub is a collaborative API design and documentation platform built on OpenAPI. It accelerates API delivery, quality, and teamwork with powerful standards and workflow tools.

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Introduction

This guide walks you through connecting Swaggerhub to Google ADK using the Composio tool router. By the end, you'll have a working Swaggerhub agent that can list all apis i have access to, create a new api named petstore, update the description for your orders api through natural language commands.

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

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

Also integrate Swaggerhub with

OpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenClawHermesCLILangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

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

The Swaggerhub MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Swaggerhub account. It provides structured and secure access so your agent can perform Swaggerhub operations on your behalf.

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 Swaggerhub 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=["swaggerhub"],
)

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 Swaggerhub 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 Swaggerhub 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=["swaggerhub"],
)

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

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

Conclusion

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

Key takeaways:

  • The Tool Router approach dynamically routes requests to the appropriate Swaggerhub 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 Swaggerhub action and event your agent gets out of the box.

Add Access Control for Teams

Tool to assign access control roles to teams on a SwaggerHub resource.

Add Access Control for Users

Tool to assign access control roles to users on a SwaggerHub resource.

Delete Table of Contents Entry

Tool to delete a table of contents entry from SwaggerHub portal.

Get Access Control Users

Tool to retrieve the list of users assigned access control on a SwaggerHub resource.

Get API Default Version

Tool to get the default version identifier of a SwaggerHub API.

Get API Versions

Tool to retrieve a list of API versions for a specific API in SwaggerHub.

Get Consumer Products

Tool to get a list of products that are visible to the consumer in a SwaggerHub portal.

Get API Definition

Tool to get the OpenAPI definition of a specified API version from SwaggerHub.

Get Domain Default Version

Tool to retrieve the default version identifier of a SwaggerHub domain.

Get domain definition

Tool to retrieve the OpenAPI definition of a specified domain version from SwaggerHub.

Get Domain JSON Definition

Tool to retrieve the OpenAPI definition for a specified domain version in JSON format.

Get Domain Lifecycle Settings

Tool to get the published status for a specific domain and version in SwaggerHub.

Get Domain Private Settings

Tool to retrieve the visibility (public or private) of a domain version in SwaggerHub.

Get Domain Versions

Tool to get a list of domain versions from SwaggerHub.

Get Domain YAML Definition

Tool to retrieve the OpenAPI definition for a specified domain version in YAML format from SwaggerHub.

Get JSON API Definition

Tool to download OpenAPI definition as a JSON file from SwaggerHub Portal API.

Get JSON Definition

Tool to get the OpenAPI definition for a specified API version in JSON format.

Get lifecycle settings

Tool to get the published status for the specified API and version.

Get Organization Members

Tool to retrieve a list of organization members and their roles from SwaggerHub.

Get User Organizations

Tool to get organizations for a user.

Get Organization Projects V2

Tool to get all projects of an organization in SwaggerHub.

Get Owner APIs

Tool to get a list of APIs for a specified owner in SwaggerHub.

Get owner domains

Tool to retrieve domains owned by a specific SwaggerHub user or organization.

Get Portal

Tool to retrieve information about a portal.

Get Portal Access Requests

Tool to retrieve access requests for a portal in SwaggerHub.

Get Portal Attachment

Tool to get informational attachment metadata from SwaggerHub Portal.

Get Portal Product

Tool to retrieve detailed information about a specific product resource.

Get Portal Products

Tool to get products for a specific portal that match your criteria.

Get Portals

Tool to search for available portals.

Get Portal Templates

Tool to get templates for a specific portal that match your criteria.

Get API Version Private Settings

Tool to get the visibility (public or private) of an API version.

List Resource Types and Roles

Tool to list available resource types and assignable roles for each in a SwaggerHub organization.

Get Templates

Tool to retrieve a list of templates for an owner in SwaggerHub.

Get User Roles

Tool to retrieve all roles assigned to a user across organization resources in SwaggerHub.

Get YAML API Definition

Tool to download OpenAPI definition as a YAML file from SwaggerHub Portal API.

Get YAML Definition

Tool to get the OpenAPI definition in YAML format for the specified API version from SwaggerHub.

List Attachments

Tool to retrieve all attachments for a portal or product.

Remove Access Control for Teams

Tool to remove access control for teams from a SwaggerHub resource.

Remove Access Control For Users

Tool to remove access control for users from a SwaggerHub organizational resource.

Remove Organization Members

Tool to remove members from a SwaggerHub organization.

Search APIs

Tool to search SwaggerHub APIs.

Search APIs and Domains

Tool to search SwaggerHub APIs, domains, and templates.

Search Domains

Tool to search SwaggerHub domains.

Search Published Portal

Tool to search published portal content.

Update Access Control for Teams

Tool to update access control roles for teams on a SwaggerHub resource.

Update Access Control for Users

Tool to update access control roles for users on a SwaggerHub resource.

Update Access Control for Teams

Tool to update access control for teams on a SwaggerHub resource.

Update Access Control Users

Tool to update access control roles for users on a SwaggerHub resource.

Update Portal

Tool to update specific portal information in SwaggerHub.

FRAMEWORKS

How to build Swaggerhub MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Swaggerhub MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Swaggerhub MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Swaggerhub MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Swaggerhub MCP with Claude Cowork

Codex logo

Codex

Use Swaggerhub MCP with Codex

OpenClaw logo

OpenClaw

Use Swaggerhub MCP with OpenClaw

Hermes logo

Hermes

Use Swaggerhub MCP with Hermes

CLI logo

CLI

Use Swaggerhub MCP with CLI

LangChain logo

LangChain

Use Swaggerhub MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Swaggerhub MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Swaggerhub MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Swaggerhub MCP with LlamaIndex

CrewAI logo

CrewAI

Use Swaggerhub MCP with CrewAI

FAQ

Frequently asked questions

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

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

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