Z Zero MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 143 installs a week from npm. Last commit 22 Aug 2026.
Payments for AI agents: gasless USDC on Base + JIT single-use virtual cards, PAN never in context.
Today is the operative word: we check Z Zero 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 z-zero-mcp -- npx -y z-zero-mcp-server
{
"mcpServers": {
"z-zero-mcp": {
"args": [
"-y",
"z-zero-mcp-server"
],
"command": "npx"
}
}
}
[mcp_servers.z-zero-mcp]
command = "npx"
args = ["-y", "z-zero-mcp-server"]
{
"mcpServers": {
"z-zero-mcp": {
"args": [
"-y",
"z-zero-mcp-server"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"z-zero-mcp": {
"args": [
"-y",
"z-zero-mcp-server"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
Z_ZERO_API_KEY (Passport Key (zk_live_...) from z-zero.xyz/dashboard/agents).
The author declared them in the registry entry; get the values from the project itself.
Pay-per-call USDA nutrition for AI agents (x402 micropayments in USDC on Base).
Xenarch — x402 MCP server for AI agent payments. Non-custodial, USDC on Base L2.
Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP.
Secure USDC payments for AI agents on Base blockchain with budget controls and instant settlement.
Escrow protection for agent payments on Base — USDC held in smart contract until job completion.
Escrow protection for agent payments on Base — USDC held in smart contract until job completion.
Payment layer for AI agents. Send USDC, manage escrows on Base blockchain.
Pay-per-call crypto data for AI agents. USDC on Base via x402. No API key.
Answers built from our own checks of this server.