How do I install 402-LAB?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 55 (Fair). The formula is published on the methodology page.

MCPpedia

402-LAB MCP Server — Install for Claude, Cursor & VS Code | MCPpedia

402-LAB MCP Server

Name: 402-LAB MCP Server
Author: kairose-master

Budget-capped x402 buyer: delegate USDC in plain words, agent discovers and pays per call.

Tools Versions Alternatives

Registrykairose-master

55Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "kairose-master-handsel-mandate": {
      "command": "npx",
      "args": [
        "-y",
        "https://github.com/Kairose-master/handsel-mandate/releases/download/mcp-v0.1.0/402-lab.mcpb"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "YOUR_BUYER_PRIVATE_KEY",
        "NETWORK": "eip155:84532",
        "MANDATE_MAX_USDC": "1",
        "CATALOG_URLS": "https://handsel-mandate-demo.vercel.app/product.json"
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
BUYER_PRIVATE_KEY	Yes	0x-prefixed private key of the paying wallet (keep only small amounts) Secret.
NETWORK	No	eip155:84532 (Base Sepolia, default) or eip155:8453 (Base mainnet)
MANDATE_MAX_USDC	No	Absolute cap any mandate may reach
CATALOG_URLS	No	Comma-separated seller product.json URLs searched besides the x402 Bazaar

402-LAB MCP Server

Install

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