x402 MCP Starter for Claude.ai

io.github.kadopi/x402-mcp-starter

Free self-hosted x402 USDC billing for Cloudflare MCP servers, with a Base Sepolia test endpoint.

client:Claude.ai transport:streamable-http tools:2

Install x402 MCP Starter in Claude.ai

Settings → Connectors → Add custom connector

https://x402-mcp-starter.kadopi.workers.dev/mcp

Claude 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

What Claude.ai can do once it is connected

validate_x402_config
get_paid_sample

x402 MCP Starter in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

x402 MCP Starter MCP server