M2mcent runs on your own machine — the client starts it, so there is no endpoint to ping. 82 installs a week from npm. Last commit 16 Aug 2026.
x402 payment wrapper for AI Agents and MCP Servers. USDC settlements on Base L2.
Today is the operative word: we check M2mcent 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 m2mcent -- npx -y m2mcent-sdk
{
"mcpServers": {
"m2mcent": {
"args": [
"-y",
"m2mcent-sdk"
],
"command": "npx"
}
}
}
[mcp_servers.m2mcent]
command = "npx"
args = ["-y", "m2mcent-sdk"]
{
"mcpServers": {
"m2mcent": {
"args": [
"-y",
"m2mcent-sdk"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"m2mcent": {
"args": [
"-y",
"m2mcent-sdk"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
BASE_RPC_URL (Base Mainnet RPC endpoint URL), RELAYER_PRIVATE_KEY (Relayer wallet private key for on-chain settlement), TREASURY_ADDRESS (Treasury wallet address to receive payments).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.