How to Use the ShangQian / 上上签 (BestSign) MCP in Claude

Q: How does ShangQian / 上上签 (BestSign) help with user setup in Claude Desktop?

You use the registershangqianuser tool to onboard users directly. This handles the initial account creation and links them into your existing document management flow automatically.

Q: What happens when I need to sign a contract using ShangQian / 上上签 (BestSign) in Claude Desktop?

Calling signcontractnow executes the signing process. The MCP Server validates all necessary inputs, including checking user credentials and confirming identity via verifyidentityv2, before completing the signature.

Q: Can I get contract information from ShangQian / 上上签 (BestSign) using Claude Desktop?

Yep. You can run getcontractdetails to pull all the metadata about a specific agreement, or use getcontractdownload if you need the actual file for review.

Q: Does this MCP Server support advanced compliance checks for ShangQian / 上上签 (BestSign) in Claude Desktop?

Absolutely. You can integrate verifyidentityv2 into your workflow to ensure the user's identity is confirmed against local records before any contract signing occurs.

Execute and manage digital contracts from any location with Claude Desktop.

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Connect ShangQian / 上上签 (BestSign) MCP to Claude Desktop

Create your Vinkius account to connect ShangQian / 上上签 (BestSign) to Claude Desktop — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

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Setup ShangQian / 上上签 (BestSign) with Claude Desktop

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Initiate Contracts Anywhere

Use `create_shangqian_contract` to quickly generate a new contract record, even if you're working on the go. This tool immediately gives you the necessary metadata needed before you can get started. You can then use `get_user_certificate` and `verify_identity_v2` right in your chat session to ensure both parties are verified before generating a link.

Complete Signing Workflows

The core action is signing. You simply call `sign_contract_now`, and the system handles the rest of the transaction. It's straightforward—you give it the contract ID, and you get a confirmation. Need to send the document? Use `get_contract_download` to grab the final PDF or whatever format is required for your client. This works whether you're in the desktop app or using the web connector.

Manage Templates and Users

Don't start from scratch every time. Use `upload_shangqian_template` to store common document layouts for quick reuse. Plus, if you're onboarding a new client, the `register_shangqian_user` tool handles that setup automatically. It means your agents can build complex multi-step workflows—from registration to signing—without needing manual handoffs.

Setup guide

Set up ShangQian / 上上签 (BestSign) MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The ShangQian / 上上签 (BestSign) MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the ShangQian / 上上签 (BestSign) MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under shangqian-bestsign-mcp.

json

{
  "mcpServers": {
    "shangqian-bestsign-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by ShangQian / 上上签 (BestSign). All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about ShangQian / 上上签 (BestSign) MCP in Claude Desktop

You use the `register_shangqian_user` tool to onboard users directly. This handles the initial account creation and links them into your existing document management flow automatically.

Calling `sign_contract_now` executes the signing process. The MCP Server validates all necessary inputs, including checking user credentials and confirming identity via `verify_identity_v2`, before completing the signature.

Yep. You can run `get_contract_details` to pull all the metadata about a specific agreement, or use `get_contract_download` if you need the actual file for review.

This server handles sensitive user certificates and contract metadata. Specifically, it manages your digital certificate information when running through Claude Desktop's integrations.

Absolutely. You can integrate `verify_identity_v2` into your workflow to ensure the user's identity is confirmed against local records before any contract signing occurs.

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