MCP Compliance runs on your own machine — the client starts it, so there is no endpoint to ping. 1 350 installs a week from npm. Last commit 16 Sep 2026.
CLI tool and MCP server that tests MCP servers for spec compliance
What the code does
We read the source, 18 h ago · rules 3dff92dd89df
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.
const out = execFileSync(cmd, ["--version"], {
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 mcp-compliance -- npx -y @yawlabs/mcp-compliance{
"mcpServers": {
"mcp-compliance": {
"args": [
"-y",
"@yawlabs/mcp-compliance"
],
"command": "npx"
}
}
}[mcp_servers.mcp-compliance]
command = "npx"
args = ["-y", "@yawlabs/mcp-compliance"]{
"mcpServers": {
"mcp-compliance": {
"args": [
"-y",
"@yawlabs/mcp-compliance"
],
"command": "npx"
}
}
}{
"mcpServers": {
"mcp-compliance": {
"args": [
"-y",
"@yawlabs/mcp-compliance"
],
"command": "npx"
}
}
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MCP Compliance — questions
Answers built from our own checks of this server.