preflight402
Trust verdict for an x402 payment endpoint: health, 402 handshake, price, proceed/caution/avoid.
Install
Remote streamable-http
https://preflight402.ironshell.io/mcpClient config (Claude Desktop, Cursor, Windsurf and most MCP clients)
{
"mcpServers": {
"io-ironshell-preflight402": {
"url": "https://preflight402.ironshell.io/mcp"
}
}
}Source: official MCP Registry record · registry name io.ironshell/preflight402 · published 2026-07-21 · updated 2026-07-21. Not an endorsement; review the code before connecting it to anything sensitive.