Supstack runs on your own machine — the client starts it, so there is no endpoint to ping. 50 installs a week from npm. Last commit 6 Jul 2026.
Evidence-based supplement research, dosing, safety, and interactions as agent-callable tools.
What the code does
We read the source, 4 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.
spawn(cmd, args, { stdio: 'ignore', detached: true }).unref();
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
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.
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 supstack -- npx -y @supstack/cli{
"mcpServers": {
"supstack": {
"command": "npx",
"args": [
"-y",
"@supstack/cli"
]
}
}
}[mcp_servers.supstack]
command = "npx"
args = ["-y", "@supstack/cli"]{
"mcpServers": {
"supstack": {
"command": "npx",
"args": [
"-y",
"@supstack/cli"
]
}
}
}{
"servers": {
"supstack": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@supstack/cli"
]
}
}
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Supstack — questions
Answers built from our own checks of this server.