How to connect Esignatures io to Claude

Connect Claude Web, Desktop and Cowork to Esignatures io MCP. Send a contract to a new client for signature, list all available contract templates, and more using natural language, with authentication handled for you.

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Esignatures io is an e-signature platform for sending and signing contracts online. Its mobile-friendly experience streamlines contract management and signing workflows.

17 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Esignatures io account to Claude via Composio Connect, enabling it to send a contract to a new client for signature, list all available contract templates, withdraw a contract that hasn't been signed, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Esignatures io with

Connecting Esignatures io to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Esignatures io account

Back in Claude, ask it to connect to Esignatures io or give it any Esignatures io-related task.

For example, ask Claude to:

  • "Send a contract to a new client for signature"
  • "List all available contract templates"
  • "Withdraw a contract that hasn't been signed"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Esignatures io account is ready to use.

What is the Esignatures io Claude Connector, and what's possible with it?

The Esignatures io MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Esignatures io account. It provides structured and secure access to your contract management tools, so your agent can create contracts, manage templates, handle signer profiles, and control contract workflows seamlessly on your behalf.

  • Automated contract creation and sending: Instantly generate and send new contracts for signature using pre-built templates and custom signer details.
  • Template management and organization: Allow your agent to create, retrieve, list, and delete contract templates for easy document standardization and reuse.
  • Signer profile creation: Effortlessly add new signers to your account, making it simple to initiate or update signature requests as needed.
  • Contract withdrawal and workflow control: Instantly withdraw contracts that should no longer be signed, preventing further action on outdated or incorrect documents.

Troubleshooting

1. Why does Claude not use the Composio connector for Esignatures io?

The connector can show as connected, but Claude must use it in each Esignatures io conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Esignatures io again.

2. Why does Claude show an MCP server error before Esignatures io connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Esignatures io.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Esignatures io.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Esignatures io authorization link not work?

The Composio connector is one server. Your Esignatures io account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Esignatures io connection.
  • Composio creates a fresh Esignatures io authorization link.
  • Open that link in your browser and finish the Esignatures io sign-in.

4. Why do Esignatures io actions fail after they worked before?

The Esignatures io connection can expire or lose permission.

  • Ask Claude to inspect the Esignatures io connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Esignatures io account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Esignatures io.
  • If the action still fails with a permission error, check that the connected account has that permission in Esignatures io itself.

5. How do I switch to a different Esignatures io account?

Claude can manage the Esignatures io connection for you.

  • Ask Claude to disconnect or delete the current Esignatures io account.
  • Ask Claude to connect Esignatures io again.
  • Open the new Composio authorization link for Esignatures io.
  • Sign in with the other Esignatures io account in the browser.
  • After the account connects, ask Claude to retry the Esignatures io task.

6. Why is my Esignatures io connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Esignatures io connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click and click Clear cache.
  • If Esignatures io tools still do not appear, click , disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Esignatures io.
TOOLS

Supported Tools

Every Esignatures io action and event your agent gets out of the box.

Add Template Collaborator

Tool to grant editing access to a template with optional email invitation.

Copy Template

Tool to duplicate an existing template with optional customization.

Create Contract

Tool to create a new contract using a specified template and signer details.

Create Signer

Add a signer to an existing contract/signature request.

Create Template

Tool to create a new template.

Delete Signer

Tool to remove a signer from a contract.

Delete Template

Tool to delete a specific template by its ID.

Generate Contract PDF Preview

Tool to generate a PDF preview of a contract and receive a webhook notification with a download URL.

Get Contract

Tool to retrieve details of a specific contract by its ID.

Get Template

Tool to retrieve details of a specific template by its ID.

List Template Collaborators

Tool to retrieve all collaborators with editing access to a template.

List Templates

Tool to retrieve a list of all templates.

Remove Template Collaborator

Tool to revoke a collaborator's template editing permissions.

Send Contract to Signer

Tool to send or resend a contract signature request to a specific signer via their configured communication channel.

Update Signer

Tool to update contact details of an existing signer on a contract.

Update Template

Tool to update an existing template's content, title, or labels.

Withdraw Contract

Tool to withdraw a contract by its ID.

FAQ

Frequently asked questions

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

Yes, you can. Claude Cowork 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 Esignatures io tools.

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

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