Check an x402 seller before paying: verdict, failure rate and evidence from paid calls on Base.
Streamable HTTP
https://mcp.paidfor.dev/mcpclaude mcp add --transport http paidfor https://mcp.paidfor.dev/mcp@paidfor/mcp · npm 0.6.0 · stdio
claude mcp add --transport stdio paidfor -- npx -y @paidfor/mcp@0.6.0