Payment Guard MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 116 installs a week from npm. Last commit 3 Nov 2026.
Pre-send risk check for AI agents that move money — screen an address or payment URL before sending.
We read the source, 6 h ago · rules 995398eba69f
Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.
const r = spawnSync(comspec, ['/d', '/s', '/c', line], {
out.innerHTML = head + "\n\n" + JSON.stringify(j,null,2);
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
Today is the operative word: we check Payment Guard MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add payment-guard-mcp -- npx -y payment-guard-mcp
{
"mcpServers": {
"payment-guard-mcp": {
"command": "npx",
"args": [
"-y",
"payment-guard-mcp"
]
}
}
}
[mcp_servers.payment-guard-mcp]
command = "npx"
args = ["-y", "payment-guard-mcp"]
{
"mcpServers": {
"payment-guard-mcp": {
"command": "npx",
"args": [
"-y",
"payment-guard-mcp"
]
}
}
}
{
"servers": {
"payment-guard-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"payment-guard-mcp"
]
}
}
}
Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.
OFAC SDN sanctions screen for crypto addresses, for agents that send payments. By Crypto Money Maker
Pre-payment checks for AI agents: sanctions and AML screening of payees, payment pages and requests.
Check stablecoin and x402 payments before an AI agent pays: approve, hold or reject.
Pre-payment safety gate for x402 agents: PII screening, spend policy, replay checks before signing.
Score merchant domain, https URL, or 0x wallet trust before an agent pays. Does not send payments.
Before sending crypto, check the recipient for address poisoning: lookalikes and bad checksums
Paid tools for AI agents over x402: privacy scan, payment-address check, locks, seller marketplace
Answers built from our own checks of this server.