M2mcent runs on your own machine — the client starts it, so there is no endpoint to ping. 48 installs a week from npm. Last commit 16 Aug 2026.
x402 payment wrapper for AI Agents and MCP Servers. USDC settlements on Base L2.
Nothing serious here today
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.
Connect this server
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 -e 'BASE_RPC_URL=<BASE_RPC_URL>' -e 'RELAYER_PRIVATE_KEY=<RELAYER_PRIVATE_KEY>' -e 'TREASURY_ADDRESS=<TREASURY_ADDRESS>' -- npx -y m2mcent-sdk{
"mcpServers": {
"m2mcent": {
"command": "npx",
"args": [
"-y",
"m2mcent-sdk"
],
"env": {
"BASE_RPC_URL": "<BASE_RPC_URL>",
"RELAYER_PRIVATE_KEY": "<RELAYER_PRIVATE_KEY>",
"TREASURY_ADDRESS": "<TREASURY_ADDRESS>"
}
}
}
}[mcp_servers.m2mcent]
command = "npx"
args = ["-y", "m2mcent-sdk"]
env = { BASE_RPC_URL = "<BASE_RPC_URL>", RELAYER_PRIVATE_KEY = "<RELAYER_PRIVATE_KEY>", TREASURY_ADDRESS = "<TREASURY_ADDRESS>" }{
"mcpServers": {
"m2mcent": {
"command": "npx",
"args": [
"-y",
"m2mcent-sdk"
],
"env": {
"BASE_RPC_URL": "<BASE_RPC_URL>",
"RELAYER_PRIVATE_KEY": "<RELAYER_PRIVATE_KEY>",
"TREASURY_ADDRESS": "<TREASURY_ADDRESS>"
}
}
}
}{
"servers": {
"m2mcent": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"m2mcent-sdk"
],
"env": {
"BASE_RPC_URL": "<BASE_RPC_URL>",
"RELAYER_PRIVATE_KEY": "<RELAYER_PRIVATE_KEY>",
"TREASURY_ADDRESS": "<TREASURY_ADDRESS>"
}
}
}
}Put your own values in place of
<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’s registry entry marks them as required.
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M2mcent — questions
Answers built from our own checks of this server.