PayGuard MCP Server

by youraitools Your server? Claim it

answering

PayGuard is answering right now. Last checked 4 min ago. It exposes 2 tools.

OFAC SDN sanctions screen for crypto addresses, for agents that send payments. By Crypto Money Maker

Uptime history 4 days of history

4 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

77 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 10

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 23 October 2026. No other catalogue keeps this.

24 Oct 2 tool descriptions were rewritten screen_address, screen_batch

23 Oct 2 tool descriptions were rewritten5 times that day screen_address, screen_batch

23 Oct 2 tools changed the parameters they ask for screen_address, screen_batch

23 Oct a tool appeared screen_batch

and 3 more, back to 23 October 2026

Nothing serious here today

Today is the operative word: we check PayGuard 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 4 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add payguard --transport http https://api.youraitools.co/payguard/mcp

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

https://api.youraitools.co/payguard/mcp

~/.codex/config.toml

[mcp_servers.payguard]
url = "https://api.youraitools.co/payguard/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "payguard": {
      "url": "https://api.youraitools.co/payguard/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "payguard": {
      "type": "http",
      "url": "https://api.youraitools.co/payguard/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.

screen

screen_address

Checks one crypto address against the US Treasury OFAC SDN list of sanctioned digital currency addresses (refreshed daily). For 2 or more addresses use screen_batch (up to 50 per call, counts as one call). Accepts any chain (BTC, ETH and EVM chains, TRX, SOL, LTC, XMR, BCH, XRP, ZEC and more). Free: 30 calls/day per IP with full results (max 10/min; invalid input is not counted); after that the tool returns an error with the x402 pay URL ($0.001 USDC on Base, Polygon, Arbitrum One or Solana per call at https://api.youraitools.co/payguard/v1/address) or prepaid credits. Returns sanctioned (true/false), match_count, matches[] (entity, entity_type, programs, list_date, listed_currency), address (normalized), chain {guess, format, candidates, checksum_valid}, list_updated_at and free_tier usage. Read-only; informational screening, not legal advice.

screen_batch

Checks 1-50 crypto addresses against the US Treasury OFAC SDN list in one call (counts as one call). Use it instead of repeated screen_address calls whenever you have several addresses (payee lists, counterparties, transaction inputs/outputs); use screen_address for a single one. Mixed chains allowed; one invalid entry rejects the whole call. Free: 30 calls/day per IP with full results (max 10/min; invalid input is not counted); after that the tool returns an error with the x402 pay URL ($0.01 USDC on Base, Polygon, Arbitrum One or Solana per call at https://api.youraitools.co/payguard/v1/batch) or prepaid credits. Returns count, sanctioned_count, any_sanctioned, list_updated_at and results[] in input order, each {input, address, sanctioned, match_count, matches[], chain}. Read-only; informational screening, not legal advice.

Endpoints

URL	Transport	State	Latency	Checked
https://api.youraitools.co/payguard/mcp	streamable-http	answering	68 ms	4 min ago

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PayGuard — questions

Answers built from our own checks of this server.

What can PayGuard do?

It exposes 2 tools, read directly from the server on our last check. Among them: screen_address, screen_batch. 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 PayGuard working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 77 ms. The bar chart above shows every period we have measured.

How do I connect PayGuard?

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 PayGuard need an API key?

No. PayGuard 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.

How fast is PayGuard?

It answers our handshake in 77 ms on average, which is faster than 97% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.