preflight402 MCP Server: Install & Setup

Install preflight402 in Claude Code

Claude Code

claude mcp add --transport http preflight402 https://preflight402.ironshell.io/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "preflight402": {
      "url": "https://preflight402.ironshell.io/mcp"
    }
  }
}

Trust verdict for an x402 payment endpoint: health, 402 handshake, price, proceed/caution/avoid.

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Remote. Hosted by the provider. You connect with a URL, nothing to install.

Run: claude mcp add --transport http preflight402 https://preflight402.ironshell.io/mcp

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