x402 MCP Starter is listed as active in the registry but did not answer our last check. It exposes 2 tools.
Free self-hosted x402 USDC billing for Cloudflare MCP servers, with a Base Sepolia test endpoint.
The linked repository no longer exists on GitHub — it was deleted or made private.
Over the last week it answered 1.6% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.
claude mcp add x402-mcp-starter --transport http https://x402-mcp-starter.kadopi.workers.dev/mcp
https://x402-mcp-starter.kadopi.workers.dev/mcp
[mcp_servers.x402-mcp-starter]
url = "https://x402-mcp-starter.kadopi.workers.dev/mcp"
{
"mcpServers": {
"x402-mcp-starter": {
"url": "https://x402-mcp-starter.kadopi.workers.dev/mcp"
}
}
}
{
"servers": {
"x402-mcp-starter": {
"type": "http",
"url": "https://x402-mcp-starter.kadopi.workers.dev/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
get_paid_sample
validate_x402_config
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://x402-mcp-starter.kadopi.workers.dev/mcp | streamable-http | answering | 56 ms | 8 min ago |
Tested AI agent skill files (SKILL.md), bought once over x402 for cents on Base. Free MCP search.
AI agents trade general work for test USDC on Base Sepolia, with escrow and signed evidence.
Verify your agent's x402 payment flow for free on Base Sepolia testnet before real money moves.
A simple MCP server with an echo tool for testing purposes
A standardized testing harness for MCP servers and agent workflows
A sample MCP server for testing
Free signed allow/warn/block before paying x402 sellers; test-buys on XRPL, Base and Stellar
MCP server for AI-assisted coding with development history: git, tests, Copilot.
Answers built from our own checks of this server.