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How to connect Oksign to Claude

Connect Claude Web, Desktop and Cowork to Oksign MCP. Send signature request for nda document, list all pending signature requests, and more using natural language, with authentication handled for you.

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Oksign is an online platform for signing contracts, purchase orders, and forms. It makes digital signatures fast, simple, and legally binding.

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 Oksign account to Claude via Composio Connect, enabling it to send signature request for NDA document, list all pending signature requests, download signed contract for order #12345, 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 Oksign with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Oksign 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 Oksign account

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

For example, ask Claude to:

  • "Send signature request for NDA document"
  • "List all pending signature requests"
  • "Download signed contract for order #12345"

It will prompt you to authenticate and authorize access.

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

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

The Oksign MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Oksign account. It provides structured and secure access so your agent can perform Oksign operations on your behalf.

Troubleshooting

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

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

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

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

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

  • 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 Oksign.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Oksign authorization link not work?

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

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

4. Why do Oksign actions fail after they worked before?

The Oksign connection can expire or lose permission.

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

5. How do I switch to a different Oksign account?

Claude can manage the Oksign connection for you.

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

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

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

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Oksign 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 Oksign.
TOOLS

Supported Tools

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

Remove Briefcase

Tool to remove a previously created briefcase from OKSign platform.

Retrieve Briefcase Information

Tool to retrieve a previously uploaded briefcase tokeninfo for consultation.

Remove Contacts

Tool to remove specified contacts from the account's contact list.

Retrieve Contacts

Tool to retrieve the list of contacts stored in the account.

Upload Contacts

Tool to insert or update contact information in the account's contact list.

Retrieve Account Credits

Tool to retrieve account credit balance and storage information.

Check Document Exists

Tool to check if a signed or unsigned document still exists on the OKSign platform.

Remove Document

Tool to remove a signed or unsigned document from the OKSign platform.

Upload Document

Tool to upload a PDF or Word document to OKSign platform for completion and/or signing.

Create Editor Express Session

Tool to invoke the OKSign Editor Express for modifying documents and form descriptors.

Upload Form Descriptor

Tool to upload form descriptor defining signature fields and other field types to a document.

Get Active Documents

Tool to retrieve all active document IDs and properties from OKsign account.

Retrieve Linked Document List

Tool to retrieve the list of linked signed or source document IDs related to a specific document.

Upload Notifications

Tool to upload notifications defining email(s) and/or SMS(es) to be sent to signer(s) with signing links.

Update Organization Token Info

Tool to update organizational token information and settings for the account.

Remove SignExpress Token

Tool to remove a previously uploaded SignExpress tokeninfo JSONObject from the OKSign platform.

Retrieve Users

Tool to retrieve the list of users associated with the OkSign account.

FRAMEWORKS

How to build Oksign MCP Agent with another framework

Claude Code logo

Claude Code

Use Oksign MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Oksign MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Oksign MCP with Claude Agent SDK

Codex logo

Codex

Use Oksign MCP with Codex

OpenClaw logo

OpenClaw

Use Oksign MCP with OpenClaw

Hermes logo

Hermes

Use Oksign MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Oksign MCP with Atomic Agent

Google ADK logo

Google ADK

Use Oksign MCP with Google ADK

LangChain logo

LangChain

Use Oksign MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Oksign MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Oksign MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Oksign MCP with LlamaIndex

CrewAI logo

CrewAI

Use Oksign MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Oksign MCP with Pydantic AI

AutoGen logo

AutoGen

Use Oksign MCP with AutoGen

FAQ

Frequently asked questions

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

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

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