well-012-x402-probe MCP Server

by workers-rainmaker-wells-well-012-x402-probe Your server? Claim it

answering

well-012-x402-probe is answering right now. Last checked 7 min ago. It exposes 1 tools.

Unpaid x402 probe: status, latency, payment terms. x402 $0.005 USDC, Base. As is, no warranty.

Uptime history 5 days of history

5 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

353 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check well-012-x402-probe every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add x402-probe --transport http https://well-012-x402-probe.rainmaker-wells.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://well-012-x402-probe.rainmaker-wells.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.x402-probe]
url = "https://well-012-x402-probe.rainmaker-wells.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "x402-probe": {
      "url": "https://well-012-x402-probe.rainmaker-wells.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "x402-probe": {
      "type": "http",
      "url": "https://well-012-x402-probe.rainmaker-wells.workers.dev/mcp"
    }
  }
}

Available tools 1

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

x402

x402-probe

Unpaid probe of a public https URL for x402 payment requirements ($0.005 USDC). Never pays. Returns HTTP status, latency, whether 402/payment-requirements parse, networks, min price, schema flag. https only; caps ~12s, 200KB, 5 redirects. Factual only; as is, no guarantee. Not a rating or certification. Provided as is, with no warranty or guarantee of accuracy or fitness. Nothing is stored.

Endpoints

URL	Transport	State	Latency	Checked
https://well-012-x402-probe.rainmaker-wells.workers.dev/mcp	streamable-http	answering	315 ms	7 min ago

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well-012-x402-probe — questions

Answers built from our own checks of this server.

What can well-012-x402-probe do?

It exposes 1 tools, read directly from the server on our last check. Among them: x402-probe. 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 well-012-x402-probe working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 353 ms. The bar chart above shows every period we have measured.

How do I connect well-012-x402-probe?

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 well-012-x402-probe need an API key?

No. well-012-x402-probe completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is well-012-x402-probe?

It answers our handshake in 353 ms on average, which is faster than 43% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.