Preflight runs on your own machine — the client starts it, so there is no endpoint to ping. 1 614 installs a week from npm. Last commit 30 Oct 2026.
New Relic MCP server for observing AI coding assistants (Claude Code, Cursor, Copilot, etc.)
We read the source, 2 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(process.execPath, proc.argv, { cwd: proc.cwd, detached: true, stdio: 'ignore' }).unref();
throw new Error('Invalid webhook URL: must be a valid https://hooks.slack.com/ URL');
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
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.
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 preflight -- npx -y @newrelic/preflight
{
"mcpServers": {
"preflight": {
"command": "npx",
"args": [
"-y",
"@newrelic/preflight"
]
}
}
}
[mcp_servers.preflight]
command = "npx"
args = ["-y", "@newrelic/preflight"]
{
"mcpServers": {
"preflight": {
"command": "npx",
"args": [
"-y",
"@newrelic/preflight"
]
}
}
}
{
"servers": {
"preflight": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@newrelic/preflight"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
NEW_RELIC_LICENSE_KEY (New Relic ingest license key. Optional: without it Preflight runs local-only with the dashboard at localhost:7777), NEW_RELIC_ACCOUNT_ID (New Relic account id, used for dashboard and alert deployment. Optional).
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Answers built from our own checks of this server.