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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use ShangQian / 上上签 (BestSign) with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. China's leading digital signature platform. manage contracts, register users, and automate signatures via AI.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 8 capabilities

The complete ShangQian / 上上签 (BestSign) capability set.

These are the exact actions your AI can choose when you ask it to work with ShangQian / 上上签 (BestSign).

Capability set01 / 02

01-04

4 capabilities in this set.

Part of 8 available through ShangQian / 上上签 (BestSign).

  1. 01

    Get contract details

    Get contract metadata

  2. 02

    Get contract download

    Get download URL

  3. 03

    Get user certificate

    Get user certificate

  4. 04

    Sign contract now

    Sign contract

Capability set02 / 02

05-08

4 capabilities in this set.

Part of 8 available through ShangQian / 上上签 (BestSign).

  1. 05

    Verify identity v2

    Verify user identity

  2. 06

    Create shangqian contract

    Create signature contract

  3. 07

    Register shangqian user

    Register a new user

  4. 08

    Upload shangqian template

    Upload new template

Observed, not estimated

890ms average. Fast in production.

ShangQian / 上上签 (BestSign) is checked daily against the live service.

Daily averagePeak 1157ms
Aug 20Today
Fastest day
732ms
Slowest day
1157ms
14-day trend
Slowing+18%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 8 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of ShangQian / 上上签 (BestSign), so you can see the experience inside your AI.

It does not authenticate your account with ShangQian / 上上签 (BestSign). Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

ShangQian / 上上签 (BestSign) Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_REnopRM4m6GGCThJg3txDonFts9VRddvbFicXAhb/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — ShangQian / 上上签 (BestSign) capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "shangqian-bestsign-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_REnopRM4m6GGCThJg3txDonFts9VRddvbFicXAhb/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions ShangQian / 上上签 (BestSign) owners ask.

  • 01

    How do I find my ShangQian Developer ID and Secret?

    Log in to the BestSign Developer Platform, navigate to the 'Application Management' or 'Credentials' section to find your unique Developer ID and RT Secret.

  • 02

    What is the 'account' identifier?

    The account identifier is a unique string used to identify a user in the ShangQian system, typically a mobile phone number or an email address. It is required for registration and signing operations.

  • 03

    Does this server handle HMAC-SHA1 signatures?

    Yes! The server automatically calculates the required HMAC-SHA1 signature using your RT Secret for every request, ensuring secure authorized communication with the ShangQian API.

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