# How to integrate Signwell MCP with Google ADK

```json
{
  "title": "How to integrate Signwell MCP with Google ADK",
  "toolkit": "Signwell",
  "toolkit_slug": "signwell",
  "framework": "Google ADK",
  "framework_slug": "google-adk",
  "url": "https://composio.dev/toolkits/signwell/framework/google-adk",
  "markdown_url": "https://composio.dev/toolkits/signwell/framework/google-adk.md",
  "updated_at": "2026-05-12T10:26:14.026Z"
}
```

## Introduction

This guide walks you through connecting Signwell to Google ADK using the Composio tool router. By the end, you'll have a working Signwell agent that can send nda document for signature to client, list all pending documents awaiting signatures, delete a document that was sent by mistake through natural language commands.
This guide will help you understand how to give your Google ADK agent real control over a Signwell account through Composio's Signwell MCP server.
Before we dive in, let's take a quick look at the key ideas and tools involved.

## Also integrate Signwell with

- [OpenAI Agents SDK](https://composio.dev/toolkits/signwell/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/signwell/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/signwell/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/signwell/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/signwell/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/signwell/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/signwell/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/signwell/framework/cli)
- [LangChain](https://composio.dev/toolkits/signwell/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/signwell/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/signwell/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/signwell/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/signwell/framework/crew-ai)

## TL;DR

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

The Signwell MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Signwell account. It provides structured and secure access to your document signing workflow, so your agent can perform actions like sending signature requests, managing documents, handling webhooks, and retrieving account info on your behalf.
- Automated document creation and sending: Have your agent generate new documents and instantly send them out for e-signature—no manual uploads or email juggling required.
- Real-time document status retrieval: Let your agent fetch the latest status and details of any document, so you always know who has signed and what’s still pending.
- Bulk send management: Effortlessly list and track large batches of signature requests, helping you stay organized when sending documents to multiple recipients.
- Webhook automation and monitoring: Register or remove webhooks so your agent can monitor document events and respond instantly to completed, signed, or cancelled documents.
- Credential and account validation: Quickly check and verify your Signwell account details and API credentials directly through your agent.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `SIGNWELL_CREATE_DOCUMENT` | Create Document | Tool to create and optionally send a new document for signing. Use when you have files and recipients defined and want to programmatically submit a signature request in one call. |
| `SIGNWELL_CREATE_DOCUMENT_FROM_TEMPLATE` | Create Document from Template | Tool to create and optionally send a new document for signing from a template. Use when you need to generate a document using a pre-configured template with placeholders. If draft is set to true the document will not be sent. |
| `SIGNWELL_CREATE_WEBHOOK` | Create Webhook | Tool to register a webhook callback URL. Use when you need to receive document event notifications. |
| `SIGNWELL_DELETE_DOCUMENT` | Delete Document | Tool to delete a document (and cancel signing if in progress). Use when you need to remove a document by ID after confirming it. |
| `SIGNWELL_DELETE_WEBHOOK` | Delete Webhook | Deletes a registered webhook by its ID. Use this to remove webhooks that are no longer needed. Returns no content on success. |
| `SIGNWELL_GET_CREDENTIALS` | Get Credentials | Retrieve account information for the authenticated API key. Returns comprehensive details including user profile, account settings, workspace configuration, and contact information. Use this to validate API credentials, check account capabilities (like template creation limits), or get user/account IDs for other API calls. |
| `SIGNWELL_GET_DOCUMENT` | Get Document | Tool to return a document and all associated document data. Use when you need to fetch document details by ID. |
| `SIGNWELL_LIST_BULK_SENDS` | List Bulk Sends | Tool to list all Bulk Sends. Use after setting up API credentials to retrieve paginated records. |
| `SIGNWELL_LIST_WEBHOOKS` | List Webhooks | Tool to list all registered webhooks. Use when you need to retrieve the active webhooks for your SignWell account after setup. |
| `SIGNWELL_SEND_REMINDER` | Send Reminder | Tool to send a reminder email to recipients that have not signed yet. Use when you need to prompt unsigned recipients to complete their signature. |
| `SIGNWELL_UPDATE_AND_SEND_DOCUMENT` | Update and Send Document | Tool to update a draft document and send it to recipients for signing. Use when you need to modify document settings and initiate the signing process. |
| `SIGNWELL_UPDATE_TEMPLATE` | Update Template | Tool to update an existing template in SignWell. Use when you need to modify template properties such as name, subject, message, reminders, expiration, or other settings. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

The Signwell MCP server is an implementation of the Model Context Protocol that connects your AI agent to Signwell. It provides structured and secure access so your agent can perform Signwell operations on your behalf through a secure, permission-based interface.
With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster.

## Step-by-step Guide

### 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

### 1. Getting API Keys for Google and Composio

Google API Key
- Go to [Google AI Studio](https://aistudio.google.com/app/apikey) 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](https://dashboard.composio.dev?utm_source=toolkits&utm_medium=framework_docs).
- 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.

### 2. Install dependencies

Inside your virtual environment, install the required packages.
What's happening:
- google-adk is Google's Agents Development Kit
- composio connects your agent to Signwell via MCP
- python-dotenv loads environment variables
```bash
pip install google-adk composio python-dotenv
```

### 3. Set up ADK project

Set up a new Google ADK project.
What's happening:
- This creates an agent folder with a root agent file and .env file
```bash
adk create my_agent
```

### 4. Set environment variables

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

### 5. Import modules and validate 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
```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.")
```

### 6. Create Composio client and Tool Router session

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
```python
composio_client = Composio(api_key=COMPOSIO_API_KEY)

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

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

### 7. Set up the McpToolset and create the Agent

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
```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 Signwell operations."
    ),
    tools=[composio_toolset],
)

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

### 8. Run the agent

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
```bash
# Run in CLI mode
adk run my_agent

# Or run in web UI mode
adk web
```

## Complete Code

```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=["signwell"],
)

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

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

## Conclusion

You've successfully integrated Signwell with the Google ADK through Composio's MCP Tool Router. Your agent can now interact with Signwell using natural language commands.
Key takeaways:
- The Tool Router approach dynamically routes requests to the appropriate Signwell 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.

## How to build Signwell MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/signwell/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/signwell/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/signwell/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/signwell/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/signwell/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/signwell/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/signwell/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/signwell/framework/cli)
- [LangChain](https://composio.dev/toolkits/signwell/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/signwell/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/signwell/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/signwell/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/signwell/framework/crew-ai)

## Related Toolkits

- [Google Drive](https://composio.dev/toolkits/googledrive) - Google Drive is a cloud storage platform for uploading, sharing, and collaborating on files. It's perfect for keeping your documents accessible and organized across devices.
- [Google Docs](https://composio.dev/toolkits/googledocs) - Google Docs is a cloud-based word processor that enables document creation and real-time collaboration. Its seamless sharing and version history make team editing and content management a breeze.
- [Google Super](https://composio.dev/toolkits/googlesuper) - Google Super is an all-in-one suite combining Gmail, Drive, Calendar, Sheets, Analytics, and more. It gives you a unified platform to manage your digital life, boosting productivity and organization.
- [Affinda](https://composio.dev/toolkits/affinda) - Affinda is an AI-powered document processing platform that automates data extraction from resumes, invoices, and more. It streamlines document-heavy workflows by turning files into structured, actionable data.
- [Agility cms](https://composio.dev/toolkits/agility_cms) - Agility CMS is a headless content management system for building and managing digital experiences across platforms. It lets teams update content quickly and deliver omnichannel experiences with ease.
- [Algodocs](https://composio.dev/toolkits/algodocs) - Algodocs is an AI-powered platform that automates data extraction from business documents. It delivers fast, secure, and accurate processing without templates or manual training.
- [Api2pdf](https://composio.dev/toolkits/api2pdf) - Api2Pdf is a REST API for generating PDFs from HTML, URLs, and documents using powerful engines like wkhtmltopdf and Headless Chrome. It streamlines document conversion and automation for developers and businesses.
- [Aryn](https://composio.dev/toolkits/aryn) - Aryn is an AI-powered platform for parsing, extracting, and analyzing data from unstructured documents. Use it to automate document processing and unlock actionable insights from your files.
- [Boldsign](https://composio.dev/toolkits/boldsign) - Boldsign is a digital eSignature platform for sending, signing, and tracking documents online. Organizations use it to automate agreements and manage legally binding workflows efficiently.
- [Boloforms](https://composio.dev/toolkits/boloforms) - BoloForms is an eSignature platform built for small businesses, offering unlimited signatures, templates, and forms. It simplifies digital document signing and team collaboration at a predictable, fixed price.
- [Box](https://composio.dev/toolkits/box) - Box is a cloud content management and file sharing platform for businesses. It helps teams securely store, organize, and collaborate on files from anywhere.
- [Carbone](https://composio.dev/toolkits/carbone) - Carbone is a blazing-fast report generator that turns JSON data into PDFs, Word docs, spreadsheets, and more using flexible templates. It lets you automate document creation at scale with minimal code.
- [Castingwords](https://composio.dev/toolkits/castingwords) - CastingWords is a transcription service specializing in human-powered, accurate transcripts via a simple API. Get seamless audio-to-text conversion for interviews, meetings, podcasts, and more.
- [Cloudconvert](https://composio.dev/toolkits/cloudconvert) - CloudConvert is a powerful file conversion service supporting over 200 file formats. It streamlines converting, compressing, and managing documents, media, and more, all in one place.
- [Cloudlayer](https://composio.dev/toolkits/cloudlayer) - Cloudlayer is a document and asset generation service for creating PDFs and images via API or SDKs. It lets you automate high-quality doc creation, saving dev time and reducing manual work.
- [Cloudpress](https://composio.dev/toolkits/cloudpress) - Cloudpress is a content export tool for Google Docs and Notion. It automates publishing to your favorite Content Management Systems.
- [Contentful graphql](https://composio.dev/toolkits/contentful_graphql) - Contentful graphql is a content delivery API that lets you access Contentful data using GraphQL queries. It gives you efficient, flexible ways to fetch and manage structured content for any digital project.
- [Conversion tools](https://composio.dev/toolkits/conversion_tools) - Conversion Tools is an online service for converting documents between formats such as PDF, Word, Excel, XML, and CSV. It lets you automate complex document workflows with just a few clicks.
- [Convertapi](https://composio.dev/toolkits/convertapi) - ConvertAPI is a robust file conversion service for documents, images, and spreadsheets. It streamlines programmatic format changes and lets developers automate complex workflows with a single API.
- [Craftmypdf](https://composio.dev/toolkits/craftmypdf) - CraftMyPDF is a web-based service for designing and generating PDFs with templates and live data. It streamlines document creation by automating personalized PDFs at scale.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Signwell MCP?

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

### Can I use Tool Router MCP with Google ADK?

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 Signwell tools.

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

Yes, absolutely. You can configure which Signwell 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.

### How safe is my data with Composio Tool Router?

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 Signwell data and credentials are handled as safely as possible.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)