Drain MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 63 installs a week from npm. Last commit 26 Mar 2026.
Pay for AI inference with USDC micropayments on Polygon. No API keys needed.
Nothing serious here today
Today is the operative word: we check Drain MCP 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 drain-mcp -e 'DRAIN_PRIVATE_KEY=<DRAIN_PRIVATE_KEY>' -- npx -y drain-mcp{
"mcpServers": {
"drain-mcp": {
"command": "npx",
"args": [
"-y",
"drain-mcp"
],
"env": {
"DRAIN_PRIVATE_KEY": "<DRAIN_PRIVATE_KEY>"
}
}
}
}[mcp_servers.drain-mcp]
command = "npx"
args = ["-y", "drain-mcp"]
env = { DRAIN_PRIVATE_KEY = "<DRAIN_PRIVATE_KEY>" }{
"mcpServers": {
"drain-mcp": {
"command": "npx",
"args": [
"-y",
"drain-mcp"
],
"env": {
"DRAIN_PRIVATE_KEY": "<DRAIN_PRIVATE_KEY>"
}
}
}
}{
"servers": {
"drain-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"drain-mcp"
],
"env": {
"DRAIN_PRIVATE_KEY": "<DRAIN_PRIVATE_KEY>"
}
}
}
}Put your own value in place of
<DRAIN_PRIVATE_KEY> (Private key for the wallet used for USDC micropayments on Polygon).
The author’s registry entry marks it as required.
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Drain MCP — questions
Answers built from our own checks of this server.