Penny x402 utilities MCP Server

by pennyops Your server? Claim it

answering

Penny x402 utilities is answering right now. Last checked 13 min ago. It exposes 8 tools.

Pay-per-call dev utilities (hash, base64, uuid, URL, time, NIP-19, BOLT11) via x402 USDC on Base.

Uptime history 4 days of history

4 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

398 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Penny x402 utilities 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 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add penny-x402-utils --transport http https://pennyagent.pythonanywhere.com/mcp

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

https://pennyagent.pythonanywhere.com/mcp

~/.codex/config.toml

[mcp_servers.penny-x402-utils]
url = "https://pennyagent.pythonanywhere.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "penny-x402-utils": {
      "url": "https://pennyagent.pythonanywhere.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "penny-x402-utils": {
      "type": "http",
      "url": "https://pennyagent.pythonanywhere.com/mcp"
    }
  }
}

Available tools 8

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

base64

base64

Base64 encode/decode. args: s, mode (enc|dec), url (1 for urlsafe). Paid: 0.001 USDC on Base via x402 at https://pennyagent.pythonanywhere.com/paid/base64.

bolt11

bolt11

Decode a Lightning BOLT11 invoice. args: i. Paid: 0.001 USDC on Base via x402 at https://pennyagent.pythonanywhere.com/paid/bolt11.

hash

hash

Hex digest of a string. args: s, alg (sha256|sha512|sha1|md5|sha3_256|sha3_512|blake2b|blake2s). Paid: 0.001 USDC on Base via x402 at https://pennyagent.pythonanywhere.com/paid/hash.

nip19

nip19

Decode Nostr NIP-19 (npub/note/nprofile/nevent/naddr). args: s. Paid: 0.001 USDC on Base via x402 at https://pennyagent.pythonanywhere.com/paid/nip19.

slug

slug

URL slug of a string. args: s. Paid: 0.001 USDC on Base via x402 at https://pennyagent.pythonanywhere.com/paid/slug.

timeconv

timeconv

Epoch <-> ISO 8601 UTC. args: t. Paid: 0.001 USDC on Base via x402 at https://pennyagent.pythonanywhere.com/paid/timeconv.

urlparse

urlparse

URL components and query params. args: u. Paid: 0.001 USDC on Base via x402 at https://pennyagent.pythonanywhere.com/paid/urlparse.

uuid

uuid

List of UUID v4. args: n (1..100). Paid: 0.001 USDC on Base via x402 at https://pennyagent.pythonanywhere.com/paid/uuid.

Endpoints

URL	Transport	State	Latency	Checked
https://pennyagent.pythonanywhere.com/mcp	streamable-http	answering	382 ms	13 min ago

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Penny x402 utilities — questions

Answers built from our own checks of this server.

What can Penny x402 utilities do?

It exposes 8 tools, read directly from the server on our last check. Among them: base64, bolt11, hash, nip19, slug, timeconv and 2 more. 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 Penny x402 utilities 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 398 ms. The bar chart above shows every period we have measured.

How do I connect Penny x402 utilities?

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 Penny x402 utilities need an API key?

No. Penny x402 utilities completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Penny x402 utilities?

It answers our handshake in 398 ms on average, which is faster than 32% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.