How to integrate Pdf co MCP with Google ADK

This guide walks you through connecting Pdf co to Google ADK using the Composio tool router. By the end, you'll have a working Pdf co agent that can extract invoice data from uploaded pdf file, convert excel spreadsheet at url to json, generate a qr code for a payment link through natural language commands. This guide will help you understand how to give your Google ADK agent real control over a Pdf co account through Composio's Pdf co MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Pdf co is a secure API platform for PDF extraction, generation, editing, and more. It helps you automate document workflows at scale with ease and reliability.

34 Tools

Introduction

This guide walks you through connecting Pdf co to Google ADK using the Composio tool router. By the end, you'll have a working Pdf co agent that can extract invoice data from uploaded pdf file, convert excel spreadsheet at url to json, generate a qr code for a payment link through natural language commands.

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

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

Also integrate Pdf co with

ChatGPTOpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenCodeCursorVS CodeOpenClawHermesCLILangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

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

The Pdf co MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Pdf co account. It provides structured and secure access to your PDF.co capabilities, so your agent can extract data, generate documents, convert files, process barcodes, and manage asynchronous jobs on your behalf.

  • Automated PDF data extraction and parsing: Let your agent extract structured data from PDFs using templates or parse documents for key information—perfect for receipts, invoices, and more.
  • PDF creation, splitting, and merging: Generate new PDF files, combine multiple PDFs, or split documents into separate files without manual intervention.
  • File format conversion: Seamlessly convert Excel files to CSV, HTML, JSON, text, or XML, enabling efficient data analysis and workflow automation.
  • Barcode generation and processing: Instantly create various barcode formats (QR codes, Code128, PDF417, etc.) or encode data into barcodes for labeling and tracking.
  • Job management and file uploads: Upload documents to PDF.co, track the status of asynchronous jobs, and retrieve results—all through your agent, hands-free.

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 Pdf co 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=["pdf_co"],
)

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 Pdf co 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 Pdf co 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=["pdf_co"],
)

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 Pdf co operations."
    ),  
    tools=[composio_toolset],
)

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

Conclusion

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

Key takeaways:

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

Get Account Balance Info

Tool to get account balance info.

Convert Excel to CSV

Tool to convert an Excel file (XLS/XLSX) to CSV.

Convert Excel to HTML

Tool to convert an Excel file to HTML.

Convert Excel to JSON

Tool to convert an online Excel or CSV file to JSON format.

Convert Excel to Text

Tool to convert Excel files to plain text.

Convert Excel to XML

Tool to convert an Excel file to XML.

Document Parser

Tool to parse documents based on predefined templates to extract structured data.

Upload File

Tool to upload a local file or remote URL to PDF.

Check Job Status

Tool to check status and result of an asynchronous job.

Add Content to PDF

Tool to add content to an existing PDF.

Change PDF Text Searchable

Tool to make PDF text searchable using OCR.

Generate Barcode

Tool to generate high quality barcode images in 45+ formats including QR Code, Code 128, Code 39, and more.

Upload File from Base64

Tool to create a temporary file using base64-encoded source data.

Delete PDF Pages

Tool to delete specific pages from a PDF file.

Extract PDF Attachments

Tool to extract embedded attachments from a PDF.

Find Text in PDF

Tool to find text in a PDF document.

PDF Forms Info Reader

Tool to extract form field information from a PDF.

Convert Text to PDF

Tool to convert a plain text (.

Convert Email to PDF

Tool to convert email files (.

Convert HTML to PDF

Tool to convert HTML code or webpage URL into a PDF document.

PDF Info Reader

Tool to retrieve detailed information and metadata of a PDF.

Merge PDFs

Tool to merge multiple PDF files into one document.

Rotate PDF Pages

Tool to rotate selected pages in a PDF.

Search and Delete Text in PDF

Tool to search for and delete text in a PDF by keyword or regex.

Search and Replace Text in PDF

Tool to search for and replace text in a PDF document.

Split PDF

Tool to split a PDF into multiple files by page ranges.

Convert PDF to CSV

Tool to convert PDF or scanned images to CSV format.

Convert PDF to HTML

Tool to convert PDF documents to HTML.

Convert PDF to Image

Tool to convert PDF pages to images (PNG, JPG, TIFF).

Convert PDF to JSON

Tool to convert PDF or scanned images to JSON format.

Convert PDF to Text

Tool to convert PDF or scanned images to plain text.

Convert PDF to XLS

Tool to convert PDF or scanned images to XLS format.

Convert PDF to XLSX

Tool to convert PDF or scanned images to XLSX (Excel) format.

Convert PDF to XML

Tool to convert PDF or scanned images to XML format.

FRAMEWORKS

How to build Pdf co MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Pdf co MCP with ChatGPT

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Pdf co MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Pdf co MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Pdf co MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Pdf co MCP with Claude Cowork

Codex logo

Codex

Use Pdf co MCP with Codex

Cursor logo

Cursor

Use Pdf co MCP with Cursor

OpenClaw logo

OpenClaw

Use Pdf co MCP with OpenClaw

Hermes logo

Hermes

Use Pdf co MCP with Hermes

CLI logo

CLI

Use Pdf co MCP with CLI

LangChain logo

LangChain

Use Pdf co MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Pdf co MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Pdf co MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Pdf co MCP with LlamaIndex

CrewAI logo

CrewAI

Use Pdf co MCP with CrewAI

OpenCode logo

OpenCode

Use Pdf co MCP with OpenCode

VS Code logo

VS Code

Use Pdf co MCP with VS Code

FAQ

Frequently asked questions

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

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

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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.

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