How to integrate Dropbox sign MCP with OpenAI Agents SDK

This guide walks you through connecting Dropbox sign to the OpenAI Agents SDK using the Composio tool router. By the end, you'll have a working Dropbox sign agent that can send nda for signature to new hire, get status of recent signature requests, download signed contract from last week through natural language commands. This guide will help you understand how to give your OpenAI Agents SDK agent real control over a Dropbox sign account through Composio's Dropbox sign MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Dropbox Sign is an electronic signature platform for sending, signing, and managing legally binding documents online. It streamlines business workflows by making signature collection fast, secure, and effortless.

56 Tools

Introduction

This guide walks you through connecting Dropbox sign to the OpenAI Agents SDK using the Composio tool router. By the end, you'll have a working Dropbox sign agent that can send nda for signature to new hire, get status of recent signature requests, download signed contract from last week through natural language commands.

This guide will help you understand how to give your OpenAI Agents SDK agent real control over a Dropbox sign account through Composio's Dropbox sign MCP server.

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

Also integrate Dropbox sign with

ChatGPTClaude Agent SDKClaude CodeClaude CoworkCodexOpenCodeCursorVS CodeOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Get and set up your OpenAI and Composio API keys
  • Install the necessary dependencies
  • Initialize Composio and create a Tool Router session for Dropbox sign
  • Configure an AI agent that can use Dropbox sign as a tool
  • Run a live chat session where you can ask the agent to perform Dropbox sign operations

What is OpenAI Agents SDK?

The OpenAI Agents SDK is a lightweight framework for building AI agents that can use tools and maintain conversation state. It provides a simple interface for creating agents with hosted MCP tool support.

Key features include:

  • Hosted MCP Tools: Connect to external services through hosted MCP endpoints
  • SQLite Sessions: Persist conversation history across interactions
  • Simple API: Clean interface with Agent, Runner, and tool configuration
  • Streaming Support: Real-time response streaming for interactive applications

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

The Dropbox sign MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Dropbox Sign account. It provides structured and secure access to your e-signature workflows, so your agent can prepare signature requests, manage documents, track signing progress, and automate agreement workflows on your behalf.

  • Automated signature requests: Have your agent create, send, and manage legally binding signature requests to one or multiple recipients, streamlining document approval processes.
  • Template-based document preparation: Let your agent generate documents from templates, pre-fill fields, and quickly send out repeat agreements without manual editing.
  • Status tracking and reminders: Ask your agent to monitor the progress of signature requests, check who has signed, and send automated reminders to outstanding signers as needed.
  • Secure document storage and retrieval: Effortlessly fetch completed, pending, or archived documents, download signed agreements, and keep your workflow organized and compliant.
  • Audit trails and activity logs: Access detailed audit trails and event histories for every document, so you can maintain compliance and always know who did what, and when.

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:
  • Composio API Key and OpenAI API Key
  • Primary know-how of OpenAI Agents SDK
  • A live Dropbox sign project
  • Some knowledge of Python or Typescript
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key. You'll need credits to use the models, or you can connect to another model provider.
  • Keep the API key safe.
Composio API Key
3

Install dependencies

npm install @composio/openai-agents @openai/agents dotenv

Install the Composio SDK and the OpenAI Agents SDK.

4

Set up environment variables

bash
OPENAI_API_KEY=sk-...your-api-key
COMPOSIO_API_KEY=your-api-key
USER_ID=composio_user@gmail.com

Create a .env file and add your OpenAI and Composio API keys.

5

Import dependencies

import 'dotenv/config';
import { Composio } from '@composio/core';
import { OpenAIAgentsProvider } from '@composio/openai-agents';
import { Agent, hostedMcpTool, run, OpenAIConversationsSession } from '@openai/agents';
import * as readline from 'readline';
What's happening:
  • You're importing all necessary libraries.
  • The Composio and OpenAIAgentsProvider classes are imported to connect your OpenAI agent to Composio tools like Dropbox sign.
6

Set up the Composio instance

dotenv.config();

const composioApiKey = process.env.COMPOSIO_API_KEY;
const userId = process.env.USER_ID;

if (!composioApiKey) {
  throw new Error('COMPOSIO_API_KEY is not set. Create a .env file with COMPOSIO_API_KEY=your_key');
}
if (!userId) {
  throw new Error('USER_ID is not set');
}

// Initialize Composio
const composio = new Composio({
  apiKey: composioApiKey,
  provider: new OpenAIAgentsProvider(),
});
What's happening:
  • dotenv.config() loads your .env file so COMPOSIO_API_KEY and USER_ID are available as environment variables.
  • Creating a Composio instance using the API Key and OpenAIAgentsProvider class.
7

Create a Tool Router session

// Create Tool Router session for Dropbox sign
const session = await composio.create(userId as string, {
  toolkits: ['dropbox_sign'],
});
const mcpUrl = session.mcp.url;

What is happening:

  • You give the Tool Router the user id and the toolkits you want available. Here, it is only dropbox_sign.
  • The router checks the user's Dropbox sign connection and prepares the MCP endpoint.
  • The returned session.mcp.url is the MCP URL that your agent will use to access Dropbox sign.
  • This approach keeps things lightweight and lets the agent request Dropbox sign tools only when needed during the conversation.
8

Configure the agent

// Configure agent with MCP tool
const agent = new Agent({
  name: 'Assistant',
  model: 'gpt-5',
  instructions:
    'You are a helpful assistant that can access Dropbox sign. Help users perform Dropbox sign operations through natural language.',
  tools: [
    hostedMcpTool({
      serverLabel: 'tool_router',
      serverUrl: mcpUrl,
      headers: { 'x-api-key': composioApiKey },
      requireApproval: 'never',
    }),
  ],
});
What's happening:
  • We're creating an Agent instance with a name, model (gpt-5), and clear instructions about its purpose.
  • The agent's instructions tell it that it can access Dropbox sign and help with queries, inserts, updates, authentication, and fetching database information.
  • The tools array includes a hostedMcpTool that connects to the MCP server URL we created earlier.
  • The headers object includes the Composio API key for secure authentication with the MCP server.
  • requireApproval: 'never' means the agent can execute Dropbox sign operations without asking for permission each time, making interactions smoother.
9

Start chat loop and handle conversation

// Keep conversation state across turns
const conversationSession = new OpenAIConversationsSession();

// Simple CLI
const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: 'You: ',
});

console.log('\nComposio Tool Router session created.');
console.log('\nChat started. Type your requests below.');
console.log("Commands: 'exit', 'quit', or 'q' to end\n");

try {
  const first = await run(agent, 'What can you help me with?', { session: conversationSession });
  console.log(`Assistant: ${first.finalOutput}\n`);
} catch (e) {
  console.error('Error:', e instanceof Error ? e.message : e, '\n');
}

rl.prompt();

rl.on('line', async (userInput) => {
  const text = userInput.trim();

  if (['exit', 'quit', 'q'].includes(text.toLowerCase())) {
    console.log('Goodbye!');
    rl.close();
    process.exit(0);
  }

  if (!text) {
    rl.prompt();
    return;
  }

  try {
    const result = await run(agent, text, { session: conversationSession });
    console.log(`\nAssistant: ${result.finalOutput}\n`);
  } catch (e) {
    console.error('Error:', e instanceof Error ? e.message : e, '\n');
  }

  rl.prompt();
});

rl.on('close', () => {
  console.log('\n👋 Session ended.');
  process.exit(0);
});
What's happening:
  • The program prints a session URL that you visit to authorize Dropbox sign.
  • After authorization, the chat begins.
  • Each message you type is processed by the agent using run().
  • The responses are printed to the console.
  • Typing exit, quit, or q cleanly ends the chat.

Complete Code

Here's the complete code to get you started with Dropbox sign and OpenAI Agents SDK:

import 'dotenv/config';
import { Composio } from '@composio/core';
import { OpenAIAgentsProvider } from '@composio/openai-agents';
import { Agent, hostedMcpTool, run, OpenAIConversationsSession } from '@openai/agents';
import * as readline from 'readline';

const composioApiKey = process.env.COMPOSIO_API_KEY;
const userId = process.env.USER_ID;

if (!composioApiKey) {
  throw new Error('COMPOSIO_API_KEY is not set. Create a .env file with COMPOSIO_API_KEY=your_key');
}
if (!userId) {
  throw new Error('USER_ID is not set');
}

// Initialize Composio
const composio = new Composio({
  apiKey: composioApiKey,
  provider: new OpenAIAgentsProvider(),
});

async function main() {
  // Create Tool Router session
  const session = await composio.create(userId as string, {
    toolkits: ['dropbox_sign'],
  });
  const mcpUrl = session.mcp.url;

  // Configure agent with MCP tool
  const agent = new Agent({
    name: 'Assistant',
    model: 'gpt-5',
    instructions:
      'You are a helpful assistant that can access Dropbox sign. Help users perform Dropbox sign operations through natural language.',
    tools: [
      hostedMcpTool({
        serverLabel: 'tool_router',
        serverUrl: mcpUrl,
        headers: { 'x-api-key': composioApiKey },
        requireApproval: 'never',
      }),
    ],
  });

  // Keep conversation state across turns
  const conversationSession = new OpenAIConversationsSession();

  // Simple CLI
  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: ',
  });

  console.log('\nComposio Tool Router session created.');
  console.log('\nChat started. Type your requests below.');
  console.log("Commands: 'exit', 'quit', or 'q' to end\n");

  try {
    const first = await run(agent, 'What can you help me with?', { session: conversationSession });
    console.log(`Assistant: ${first.finalOutput}\n`);
  } catch (e) {
    console.error('Error:', e instanceof Error ? e.message : e, '\n');
  }

  rl.prompt();

  rl.on('line', async (userInput) => {
    const text = userInput.trim();

    if (['exit', 'quit', 'q'].includes(text.toLowerCase())) {
      console.log('Goodbye!');
      rl.close();
      process.exit(0);
    }

    if (!text) {
      rl.prompt();
      return;
    }

    try {
      const result = await run(agent, text, { session: conversationSession });
      console.log(`\nAssistant: ${result.finalOutput}\n`);
    } catch (e) {
      console.error('Error:', e instanceof Error ? e.message : e, '\n');
    }

    rl.prompt();
  });

  rl.on('close', () => {
    console.log('\nSession ended.');
    process.exit(0);
  });
}

main().catch((err) => {
  console.error('Fatal error:', err);
  process.exit(1);
});

Conclusion

This was a starter code for integrating Dropbox sign MCP with OpenAI Agents SDK to build a functional AI agent that can interact with Dropbox sign.

Key features:

  • Hosted MCP tool integration through Composio's Tool Router
  • SQLite session persistence for conversation history
  • Simple async chat loop for interactive testing
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.
TOOLS

Supported Tools

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

Invite User to Team

Tool to invite a user to your Team.

Add User to Template

Tool to grant a specified account access to a template.

Bulk create embedded signature request with template

Tool to create a BulkSendJob for embedded templated signature requests.

Bulk send with template

Tool to create a BulkSendJob for templated signature requests.

Cancel Signature Request

Cancels an incomplete signature request.

Create Dropbox Sign Account

Tool to create a new Dropbox Sign account associated with a specified email address.

Create API App

Tool to create a new Dropbox Sign API App.

Create Embedded Signature Request

Tool to create an embedded signature request for signing in an iFrame.

Create Embedded Signature Request With Template

Tool to create an embedded signature request based on a template.

Create Embedded Template Draft

Tool to create an embedded template draft.

Create Embedded Unclaimed Draft with Template

Tool to create an embedded unclaimed draft using saved templates.

Create Report

Request creation of CSV report(s) for a specified date range.

Create Template

Tool to create a reusable template for document signing workflows.

Create Unclaimed Draft

Tool to create an unclaimed draft that can be claimed via a unique URL.

Delete API App

Tool to delete an API App from your Dropbox Sign account by its client_id.

Delete Fax

Tool to delete a fax from the system by its fax_id.

Delete Template

Permanently deletes a template from your Dropbox Sign account by its template_id.

Download Signature Request Files

Download files for a signature request as PDF (merged) or ZIP (individual documents).

Edit and Resend Embedded Signature Request

Tool to edit and resend an embedded signature request.

Edit and Resend Signature Request

Edits and resends an existing non-templated signature request with updated documents, signers, or settings.

Edit and Resend Unclaimed Draft

Tool to edit and resend a previously created unclaimed draft.

Edit and Resend Embedded Signature Request With Template

Tool to edit and resend an embedded signature request using templates.

Get Dropbox Sign Account

Retrieves detailed information about a Dropbox Sign account including quotas, payment status, and settings.

Get API App

Tool to retrieve information about an API App by its client ID.

Get Bulk Send Job

Tool to retrieve the status of a bulk send job.

Get Current Team Membership

Tool to get the current team membership status and details.

Get Embedded Sign URL

Retrieves an embedded signing URL for a specific signer's signature.

Get Embedded Template Edit URL

Tool to generate an edit URL for embedded template editing.

Get Available Fax Line Area Codes

Tool to retrieve available fax line area codes for a given country, state/province, and city.

Get Signature Request

Retrieves the current status and complete details of a signature request by ID.

Get Signature Request Files as Data URI

Tool to download signature request files as a base64-encoded data URI.

Get Signature Request Files as File URL

Retrieves a copy of the current documents and returns a JSON object with a URL to the file (PDFs only).

Get Team Info

Retrieves information about a Dropbox Sign team, including team name, member count, and sub-team count.

Get Template

Tool to return the specified template.

Download Template Files

Tool to download documents associated with a template.

Get Template Files as Data URI

Tool to retrieve template documents as base64-encoded data URI.

Get Template Files as File URL

Tool to retrieve a copy of template documents and return a JSON object with a URL to the file (PDFs only).

List API Apps

Tool to list API Apps.

List Bulk Send Jobs

Tool to list bulk send jobs.

List Faxes

Tool to list faxes and their properties.

List Fax Lines

Tool to list fax lines and their properties.

List Signature Requests

Tool to list signature requests.

List Sub-Teams

Lists all sub-teams belonging to a parent team with pagination support.

List Team Members

Lists all members and their roles for a specific team.

List All Teams

Lists all Dropbox Sign teams accessible to the authenticated user, including the current team and its sub-teams.

List Templates

Tool to list templates.

Generate OAuth Authorization URL

Tool to generate an OAuth authorization URL.

Release Signature Request Hold

Release a held signature request to send it to signers.

Remove User from Template

Tool to remove an account's access to a template.

Send Signature Request

Tool to create and send a new signature request with documents.

Send Request Reminder

Sends an email reminder to a signer about a pending signature request.

Update Dropbox Sign Account

Tool to update Dropbox Sign account properties and settings.

Update API App

Tool to update an existing API App in Dropbox Sign.

Update Signature Request

Updates the email address and/or name for a specific signer on a signature request.

Update Template Files

Tool to update files for an existing template.

Verify Dropbox Sign Account

Tool to verify whether a Dropbox Sign account exists for the given email.

FRAMEWORKS

How to build Dropbox sign MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Dropbox sign MCP with ChatGPT

Claude Agent SDK logo

Claude Agent SDK

Use Dropbox sign MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Dropbox sign MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Dropbox sign MCP with Claude Cowork

Codex logo

Codex

Use Dropbox sign MCP with Codex

Cursor logo

Cursor

Use Dropbox sign MCP with Cursor

OpenClaw logo

OpenClaw

Use Dropbox sign MCP with OpenClaw

Hermes logo

Hermes

Use Dropbox sign MCP with Hermes

CLI logo

CLI

Use Dropbox sign MCP with CLI

Google ADK logo

Google ADK

Use Dropbox sign MCP with Google ADK

LangChain logo

LangChain

Use Dropbox sign MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Dropbox sign MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Dropbox sign MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Dropbox sign MCP with LlamaIndex

CrewAI logo

CrewAI

Use Dropbox sign MCP with CrewAI

OpenCode logo

OpenCode

Use Dropbox sign MCP with OpenCode

VS Code logo

VS Code

Use Dropbox sign MCP with VS Code

FAQ

Frequently asked questions

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

Yes, you can. OpenAI Agents SDK 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 Dropbox sign tools.

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

Start with Dropbox sign.It takes 30 seconds.

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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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