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x402 MCP Starter MCP Server

not responding

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.

Uptime history 58 days of history · worst day 0%
58 days agonow
0.0%
Uptime 24h
0 of 91 checks
2
Tools
read from the server
56 ms
Response time
average over 24h
open, no key
Access
streamable-http

x402 MCP Starter does not always answer

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.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add x402-mcp-starter --transport http https://x402-mcp-starter.kadopi.workers.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://x402-mcp-starter.kadopi.workers.dev/mcp
~/.codex/config.toml
[mcp_servers.x402-mcp-starter]
url = "https://x402-mcp-starter.kadopi.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "x402-mcp-starter": {
      "url": "https://x402-mcp-starter.kadopi.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "x402-mcp-starter": {
      "type": "http",
      "url": "https://x402-mcp-starter.kadopi.workers.dev/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

paid
get_paid_sample
Fixed-price reference path: confirms that an x402-aware MCP client can pay and receive a receipt.
validate
validate_x402_config
Free: checks Base USDC, price, amount, recipient, and facilitator settings before you deploy an x402-paid MCP tool.

Endpoints

URLTransportStateLatencyChecked
https://x402-mcp-starter.kadopi.workers.dev/mcp streamable-http answering 56 ms 8 min ago

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x402 MCP Starter — questions

Answers built from our own checks of this server.

What can x402 MCP Starter do?
It exposes 2 tools, read directly from the server on our last check. Among them: get_paid_sample, validate_x402_config. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is x402 MCP Starter working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 56 ms. The bar chart above shows every period we have measured.
Is x402 MCP Starter still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
The registry lists x402 MCP Starter as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect x402 MCP Starter?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does x402 MCP Starter need an API key?
No. x402 MCP Starter completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.