mcp for Claude.ai
dev.x402check/mcp
Preflight before paying any x402 tool (ok|caution|avoid + history). 1 free/wallet; then $0.01 Base.
client:Claude.ai
transport:streamable-http
runtime:npm
tools:6
Install mcp in Claude.ai
Settings → Connectors → Add custom connector
https://x402check.dev/mcpClaude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs