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

Q: Can I use ShangQian / 上上签 (BestSign) to manage templates with Mastra AI?

Yes. You can build a workflow that first calls uploadshangqiantemplate and then uses the resulting template ID to automatically generate new contracts using createshangqiancontract.

Build complex workflows for ShangQian / 上上签 (BestSign). Automatic retries and failure handling built in.

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…and any MCP-compatible client

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Connect ShangQian / 上上签 (BestSign) MCP to Mastra AI

Create your Vinkius account to connect ShangQian / 上上签 (BestSign) to Mastra AI — 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 Mastra AI

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Automated Contract Workflow

Mastra AI runs the full contract signing process using `sign_contract_now`. The workflow engine handles sequence, ensuring that identity verification happens before a signature is attempted. It automatically incorporates credential checks via `get_user_certificate`, making sure you never try to sign with outdated credentials.

Reliable User Registration

The `register_shangqian_user` tool handles new user setup, which is critical for reliable workflow execution. If registration fails due to a quota issue or invalid input, Mastra AI can automatically retry the action. This ensures that your complex processes don't fail just because of temporary API issues.

Retrieve Contract Status

When you need to know if a contract is ready for download or what its status is, use `get_contract_details`. This tool provides all the necessary metadata points. You can then call `get_contract_download` to fetch the actual file URL only once the status confirms it's complete.

Setup guide

Set up ShangQian / 上上签 (BestSign) MCP in Mastra AI

Prerequisites

Node.js 18+ and a TypeScript project
@mastra/mcp + @mastra/core packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run npm install @mastra/mcp @mastra/core plus your preferred model provider (e.g. @ai-sdk/openai).
2

Configure the MCPClient
Create an MCPClient with your Vinkius endpoint as a URL object. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and inject tools
Call mcpClient.listTools() and spread the result into your agent's tools object. All ShangQian / 上上签 (BestSign) tools become native Mastra tools.
4

Run with any model
Swap openai("gpt-4o") for any AI SDK-compatible provider. Call agent.generate() and the agent routes tool calls through MCP automatically.

agent.ts

import { MCPClient } from "@mastra/mcp";
import { Agent } from "@mastra/core/agent";
import { openai } from "@ai-sdk/openai";

const mcpClient = new MCPClient({
  id: "shangqian-bestsign-mcp-client",
  servers: {
    "shangqian-bestsign-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

const agent = new Agent({
  name: "ShangQian / 上上签 (BestSign) Agent",
  model: openai("gpt-4o"),
  instructions: "You have access to ShangQian / 上上签 (BestSign) tools.",
  tools: {
    ...(await mcpClient.listTools()),
  },
});

const result = await agent.generate(
  "List recent ShangQian / 上上签 (BestSign) transactions"
);
console.log(result.text);

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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 Mastra AI

Mastra AI treats the MCP Server as a reliable, stateful component. It manages calling sequences—for instance, running `verify_identity_v2` followed by `create_shangqian_contract` in one atomic workflow.

The server manages user certificates, contract metadata, and template definitions. The reliability of the process depends on these specific data points being consistent.

Yes. You can build a workflow that first calls `upload_shangqian_template` and then uses the resulting template ID to automatically generate new contracts using `create_shangqian_contract`.

The framework handles this by stopping the current step and automatically retrying the failed tool call. It uses exponential backoff, preventing cascading failures.

The primary limitation is network connectivity to the endpoint token. If authentication fails, all subsequent calls like `sign_contract_now` will halt until credentials are refreshed.

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