Samarth Gtm MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 2 096 installs a week from npm. Last commit 17 Sep 2026.
Google Tag Manager + read-only GA4 MCP server. Read-only by default, gated writes, audits.
We read the source, 17 h ago · rules 3dff92dd89df
Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.
const promise = this.spawn(userId, accessToken).finally(() => this.starting.delete(userId));
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 promise = this.spawn(userId, accessToken).finally(() => this.starting.delete(userId));
<input style={{ ...input, minWidth: 320 }} placeholder="https://hooks.slack.com/services/..." value={webhookDraft} onChange={(e) => setWebhookDraft(e.target.value)} />
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
Code changes quietly between releases, and nobody reads the diff of a dependency. We do, on every release — watch Samarth Gtm MCP and you get told the day something new turns up.
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 samarth-gtm-mcp -- npx -y samarth-gtm-mcp
{
"mcpServers": {
"samarth-gtm-mcp": {
"args": [
"-y",
"samarth-gtm-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.samarth-gtm-mcp]
command = "npx"
args = ["-y", "samarth-gtm-mcp"]
{
"mcpServers": {
"samarth-gtm-mcp": {
"args": [
"-y",
"samarth-gtm-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"samarth-gtm-mcp": {
"args": [
"-y",
"samarth-gtm-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
GOOGLE_OAUTH_CLIENT_ID (Your Google OAuth 2.0 client ID (Desktop app type)), GOOGLE_OAUTH_CLIENT_SECRET (Your Google OAuth 2.0 client secret), GTM_MCP_ENABLE_WRITES (Set to 'true' to allow create/update operations (default: read-only)), GTM_MCP_ENABLE_PUBLISH (Set to 'true' to allow publish operations (default: disabled)), GTM_MCP_ENABLE_DELETES (Set to 'true' to allow delete operations (default: disabled)).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.