X402 Payagent MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 154 installs a week from npm. Last commit 15 Oct 2026.
Pay x402 APIs in USDC on Base, Solana, and BNB Chain with spend mandates, receipts, idempotency.
We read the source, 5 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
пакет @arispay/payagent-mcp ссылается на arispay-inc/arispay-x402
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
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 x402-payagent-mcp -- npx -y @arispay/payagent-mcp
{
"mcpServers": {
"x402-payagent-mcp": {
"command": "npx",
"args": [
"-y",
"@arispay/payagent-mcp"
]
}
}
}
[mcp_servers.x402-payagent-mcp]
command = "npx"
args = ["-y", "@arispay/payagent-mcp"]
{
"mcpServers": {
"x402-payagent-mcp": {
"command": "npx",
"args": [
"-y",
"@arispay/payagent-mcp"
]
}
}
}
{
"servers": {
"x402-payagent-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@arispay/payagent-mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
ARISPAY_API_KEY (ArisPay developer API key (ap_live_… / ap_test_…). Optional — the setup tool can self-provision one from just an email, or set PAYAGENT_PRIVATE_KEY to sign locally with no account), PAYAGENT_PRIVATE_KEY (EVM private key for permissionless local signing (zero-signup mode): pay signs x402 payments with it directly — no ArisPay account needed. Generate one with `npx payagent wallet new`. Never sent to any server).
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Answers built from our own checks of this server.