LeadSync runs on your own machine — the client starts it, so there is no endpoint to ping. 517 installs a week from npm. Last commit 29 Oct 2026.
Manage Facebook and Instagram lead ad delivery: CRMs, alerts, autoresponders and test leads.
We read the source, 3 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.
const r = spawnSync(inv.file, inv.args, { encoding: 'utf8', shell: inv.shell, windowsHide: true })
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 mcp -- npx -y @leadsync/mcp
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@leadsync/mcp"
]
}
}
}
[mcp_servers.mcp]
command = "npx"
args = ["-y", "@leadsync/mcp"]
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@leadsync/mcp"
]
}
}
}
{
"servers": {
"mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@leadsync/mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
LEADSYNC_API_KEY (LeadSync API key (Account, Settings, API keys). Optional if you ran npx @leadsync/skills login, which saves it to ~/.leadsync/.env).
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Answers built from our own checks of this server.