How to integrate Dropbox sign MCP with OpenCode

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How to integrate Dropbox sign MCP with OpenCode

This guide explains how to connect Dropbox sign MCP to OpenCode using Composio Connect, which simplifies OAuth, API changes, and reliability concerns.

There are two ways to set this up:

Also integrate Dropbox sign with

Why use Composio?

Composio provides a single MCP server or CLI tool that exposes a set of meta-tools, allowing you to:

  • Connect to 1,000+ apps with on-demand tool loading, so you do not fill your LLM context window with unnecessary tool definitions.
  • Use programmatic tool calling through a remote Bash tool, letting LLMs write their own code to handle complex tool chaining. This reduces back-and-forth for frequent tool calls.
  • Handle large tool responses outside the LLM context to keep conversations lean.

Connect Dropbox sign with OpenCode

Option 1: Using Composio CLI

1. Install Composio CLI

Install the Composio CLI, authenticate, and initialize your project:

bash
# Install the Composio CLI
curl -fsSL https://composio.dev/install | bash

# Authenticate with Composio
composio login

During login, you will be redirected to the sign-in page. Finish the flow and you are all set.

Composio CLI authorization screen

2. Authorize Dropbox sign

Once the CLI is installed, it is essentially done. Give OpenCode access to your apps with these steps:

  1. Launch OpenCode.
  2. Prompt it to "Authenticate with Dropbox sign Composio".
  3. Complete the authentication and authorization flow, and your Dropbox sign integration is all set.
  4. Start asking anything you want.

Option 2: Using Composio MCP

You can also connect Dropbox sign to OpenCode by adding Composio as an MCP server through the OpenCode CLI.

1. Add the Composio MCP server

bash
opencode mcp add

This launches an interactive prompt.

2. Fill in the fields

FieldValue
Namecomposio
Typeremote
URLhttps://connect.composio.dev/mcp
Require OAuthYes
Have client IDNo
OpenCode MCP server interactive prompt for Composio

Alternatively, you can skip the interactive prompt and paste the configuration directly into your OpenCode config file.

Open your global OpenCode config:

bash
open ~/.config/opencode/opencode.json

Add this under the mcp key and save the file.

bash
{
  "mcp": {
    "composio": {
      "type": "remote",
      "url": "https://connect.composio.dev/mcp",
      "enabled": true
    }
  }
}

3. Authenticate

Authenticate the Composio MCP server you just added:

bash
opencode mcp auth composio

This opens a browser session. Authorize Composio and you are done.

Composio browser authorization for OpenCode MCP

4. Verify installation

bash
opencode mcp list

5. Connect Dropbox sign with OpenCode

Now, in the chat, ask the agent to connect to Dropbox sign or give it any Dropbox sign-related task.

For example, ask it to:

  • "Send NDA for signature to new hire"
  • "Get status of recent signature requests"
  • "Download signed contract from last week"

It will prompt you to authenticate and authorize access to Dropbox sign.

That is it. Composio tools are now available in OpenCode, and your Dropbox sign account is ready to use.

Supported Tools & Triggers

Tools
Invite User to TeamTool to invite a user to your Team.
Add User to TemplateTool to grant a specified account access to a template.
Bulk create embedded signature request with templateTool to create a BulkSendJob for embedded templated signature requests.
Bulk send with templateTool to create a BulkSendJob for templated signature requests.
Cancel Signature RequestCancels an incomplete signature request.
Create Dropbox Sign AccountTool to create a new Dropbox Sign account associated with a specified email address.
Create API AppTool to create a new Dropbox Sign API App.
Create Embedded Signature RequestTool to create an embedded signature request for signing in an iFrame.
Create Embedded Signature Request With TemplateTool to create an embedded signature request based on a template.
Create Embedded Template DraftTool to create an embedded template draft.
Create Embedded Unclaimed Draft with TemplateTool to create an embedded unclaimed draft using saved templates.
Create ReportRequest creation of CSV report(s) for a specified date range.
Create TemplateTool to create a reusable template for document signing workflows.
Create Unclaimed DraftTool to create an unclaimed draft that can be claimed via a unique URL.
Delete API AppTool to delete an API App from your Dropbox Sign account by its client_id.
Delete FaxTool to delete a fax from the system by its fax_id.
Delete TemplatePermanently deletes a template from your Dropbox Sign account by its template_id.
Download Signature Request FilesDownload files for a signature request as PDF (merged) or ZIP (individual documents).
Edit and Resend Embedded Signature RequestTool to edit and resend an embedded signature request.
Edit and Resend Signature RequestEdits and resends an existing non-templated signature request with updated documents, signers, or settings.
Edit and Resend Unclaimed DraftTool to edit and resend a previously created unclaimed draft.
Edit and Resend Embedded Signature Request With TemplateTool to edit and resend an embedded signature request using templates.
Get Dropbox Sign AccountRetrieves detailed information about a Dropbox Sign account including quotas, payment status, and settings.
Get API AppTool to retrieve information about an API App by its client ID.
Get Bulk Send JobTool to retrieve the status of a bulk send job.
Get Current Team MembershipTool to get the current team membership status and details.
Get Embedded Sign URLRetrieves an embedded signing URL for a specific signer's signature.
Get Embedded Template Edit URLTool to generate an edit URL for embedded template editing.
Get Available Fax Line Area CodesTool to retrieve available fax line area codes for a given country, state/province, and city.
Get Signature RequestRetrieves the current status and complete details of a signature request by ID.
Get Signature Request Files as Data URITool to download signature request files as a base64-encoded data URI.
Get Signature Request Files as File URLRetrieves a copy of the current documents and returns a JSON object with a URL to the file (PDFs only).
Get Team InfoRetrieves information about a Dropbox Sign team, including team name, member count, and sub-team count.
Get TemplateTool to return the specified template.
Download Template FilesTool to download documents associated with a template.
Get Template Files as Data URITool to retrieve template documents as base64-encoded data URI.
Get Template Files as File URLTool to retrieve a copy of template documents and return a JSON object with a URL to the file (PDFs only).
List API AppsTool to list API Apps.
List Bulk Send JobsTool to list bulk send jobs.
List FaxesTool to list faxes and their properties.
List Fax LinesTool to list fax lines and their properties.
List Signature RequestsTool to list signature requests.
List Sub-TeamsLists all sub-teams belonging to a parent team with pagination support.
List Team MembersLists all members and their roles for a specific team.
List All TeamsLists all Dropbox Sign teams accessible to the authenticated user, including the current team and its sub-teams.
List TemplatesTool to list templates.
Generate OAuth Authorization URLTool to generate an OAuth authorization URL.
Release Signature Request HoldRelease a held signature request to send it to signers.
Remove User from TemplateTool to remove an account's access to a template.
Send Signature RequestTool to create and send a new signature request with documents.
Send Request ReminderSends an email reminder to a signer about a pending signature request.
Update Dropbox Sign AccountTool to update Dropbox Sign account properties and settings.
Update API AppTool to update an existing API App in Dropbox Sign.
Update Signature RequestUpdates the email address and/or name for a specific signer on a signature request.
Update Template FilesTool to update files for an existing template.
Verify Dropbox Sign AccountTool to verify whether a Dropbox Sign account exists for the given email.

Way Forward

Now that Dropbox sign is connected, extend your setup by connecting the other apps you already use every day, so your agent can run true cross-app workflows end to end.

  • Connect Calendar to turn threads into scheduled meetings automatically.
  • Connect Slack or Teams to post summaries, approvals, and alerts where your team works.
  • Connect Notion, Linear, Jira, or Asana to convert requests into tickets, tasks, and docs.
  • Connect Drive, Dropbox, or OneDrive to fetch, file, and share attachments without manual steps.

Start with one workflow you do repeatedly, then keep adding apps as you find new handoffs. With everything behind a single MCP endpoint, your agent can coordinate multiple tools safely and reliably in one conversation.

How to build Dropbox sign MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Dropbox sign MCP?

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.

Can I use Tool Router MCP with OpenCode?

Yes, you can. OpenCode 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.

Can I manage the permissions and scopes for Dropbox sign while using Tool Router?

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.

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 Dropbox sign data and credentials are handled as safely as possible.

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Letta
glean
HubSpot
Agent.ai
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DataStax
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Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

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