Pay MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 1 115 installs a week from npm.
x402 payment tools for MCP clients: pay, verify a STARK receipt, hash per RFC 8785. No account.
Today is the operative word: we check Pay 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 pay-mcp -- npx -y @vauban-org/pay-mcp
{
"mcpServers": {
"pay-mcp": {
"args": [
"-y",
"@vauban-org/pay-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.pay-mcp]
command = "npx"
args = ["-y", "@vauban-org/pay-mcp"]
{
"mcpServers": {
"pay-mcp": {
"args": [
"-y",
"@vauban-org/pay-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"pay-mcp": {
"args": [
"-y",
"@vauban-org/pay-mcp"
],
"command": "npx"
}
}
}
Budget-capped x402 payments for AI agents: verifiable receipts, trust routing, 17 free tools.
MCP server for YooKassa payment API — payments, refunds, receipts (54-FZ). 10 tools. First MCP for
85+ pay-per-call MCP tools: trading, federal grants/contracts, SEC, FTD. x402 USDC/RLUSD. No keys.
MCP server for Spraay x402 Gateway. 60 tools for crypto payments, DeFi, and AI on Base.
33 pay-per-call market and news data tools over MCP with free discovery and x402 payments.
Non-custodial HTTP-402 crypto payments for AI agents. 77-tool MCP server.
Non-custodial HTTP-402 crypto payments for AI agents. 79-tool MCP server.
Non-custodial HTTP-402 crypto payments for AI agents. 79-tool MCP server.
Answers built from our own checks of this server.