How do I install Preflight Checks (x402)?

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.

Is Preflight Checks (x402) official?

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

Preflight Checks (x402) MCP Server | MCPpedia

Preflight Checks (x402) MCP Server

Name: Preflight Checks (x402) MCP Server
Author: josediegorobles

Deterministic pre-execution verification tools for AI agents with x402 USDC pay-per-call on Base

Tools Versions Alternatives

RegistryRemotejosediegorobles

55Fair

Install

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

{
  "mcpServers": {
    "josediegorobles-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@joserobles/preflight-mcp@0.4.0"
      ],
      "env": {
        "PREFLIGHT_BUYER_PRIVATE_KEY": "YOUR_PREFLIGHT_BUYER_PRIVATE_KEY",
        "PREFLIGHT_BASE_URL": ""
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
PREFLIGHT_BUYER_PRIVATE_KEY	Yes	Private key of a Base wallet holding USDC, used to pay each call via x402 (0.05 USDC per check). Secret.
PREFLIGHT_BASE_URL	No	API base URL. Defaults to https://preflight402.com.

Preflight Checks (x402) MCP Server

Install

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