io.github.mharnett/gtm-ga4
NPM · MCP-GTM-GA4 · SCANNED SEP 20
GTM + GA4 MCP: tag management, consent auditing, workspace versioning, reports.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security80
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects @modelcontextprotocol/sdk 0.5.0, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 69 of 191 dependencies flagged as unhealthy (3 deprecated). View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 16 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 621 tokens (~47/item across 13 items; 13 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 13 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 13 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities20
- Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. See how to fix → Fail
How do I install the io.github.mharnett/gtm-ga4 MCP server?
io.github.mharnett/gtm-ga4 runs locally as an npm package, launched with npx -y mcp-gtm-ga4. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · mcp-gtm-ga4
claude mcp add mharnett-gtm-ga4 -- npx -y mcp-gtm-ga4
{
"mcpServers": {
"mharnett-gtm-ga4": {
"command": "npx",
"args": [
"-y",
"mcp-gtm-ga4"
]
}
}
} {
"servers": {
"mharnett-gtm-ga4": {
"command": "npx",
"args": [
"-y",
"mcp-gtm-ga4"
]
}
}
} codex mcp add mharnett-gtm-ga4 -- npx -y mcp-gtm-ga4
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"mharnett-gtm-ga4": {
"type": "local",
"command": [
"npx",
"-y",
"mcp-gtm-ga4"
],
"enabled": true
}
}
} openclaw mcp add mharnett-gtm-ga4 --command npx --arg -y --arg mcp-gtm-ga4
mcp_servers:
mharnett-gtm-ga4:
command: "npx"
args: ["-y", "mcp-gtm-ga4"] {
"McpServers": {
"mharnett-gtm-ga4": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"mcp-gtm-ga4"
]
}
}
} assistant mcp add mharnett-gtm-ga4 -t stdio -c npx -a -y mcp-gtm-ga4
{
"mcpServers": {
"mharnett-gtm-ga4": {
"command": "npx",
"args": [
"-y",
"mcp-gtm-ga4"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
- Security disclosure: unverified → fail ▼ functional
- 17 Sept 26 −3
- Stability: pass → 0.83 functional
- 16 Sept 26 +1
- Stability: 0.97 → pass security
- Security disclosure: fail → unverified ▼ functional
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
- Security disclosure: unverified → fail ▼ functional
- 10 Sept 26 +1
- Security disclosure: fail → unverified ▼ functional
- 9 Sept 26 −4
- Stability: pass → 0.77 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed npm/mcp-gtm-ga4@1.0.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 2 findings
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-w48q-cv73-mx4w | CVE-2025-66414 | high | yes | |
| GHSA-w5hq-g745-h8pq | CVE-2026-41907 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 191 packages
| Packages resolved | 191 |
|---|---|
| Deprecated | 3 |
| Stale | 66 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
ga4_create_custom_dimension ~85
Register a new custom dimension in the GA4 property.
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | – | Optional description |
| display_name | string | yes | Human-readable name (e.g., "Form Type") |
| parameter_name | string | yes | Event parameter name (e.g., "form_type") |
| scope | string | – | "EVENT" or "USER" (default: EVENT) |
No output schema declared.
No examples provided.
ga4_list_custom_dimensions ~22
List all registered custom dimensions for the GA4 property.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
ga4_realtime_report ~56
Query GA4 Realtime Report (last 30 minutes).
| Name | Type | Req | Description |
|---|---|---|---|
| dimension_filter | string | – | Optional equality filter |
| dimensions | string | – | Comma-separated dimensions |
| metrics | string | – | Comma-separated metrics |
No output schema declared.
No examples provided.
ga4_run_report ~126
Query GA4 historical report.
| Name | Type | Req | Description |
|---|---|---|---|
| dimension_filter | string | – | Optional equality filter (e.g., "eventName==page_view") |
| dimensions | string | – | Comma-separated dimensions (e.g., "eventName,date") |
| end_date | string | – | End date (YYYY-MM-DD or "today") |
| limit | number | – | Max rows (default 100) |
| metrics | string | – | Comma-separated metrics (e.g., "eventCount,activeUsers") |
| start_date | string | – | Start date (YYYY-MM-DD or "7daysAgo") |
No output schema declared.
No examples provided.
gtm_audit_consent ~42
Scan all tags in the sandbox workspace and report consent compliance. Returns tags with no consent, NOT_NEEDED tags, properly configured tags, and recommendations.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gtm_create_tag ~40
Create a new tag in the sandbox workspace. Safety: only operates on sandbox workspace.
| Name | Type | Req | Description |
|---|---|---|---|
| tag_json | string | yes | Full GTM tag JSON |
No output schema declared.
No examples provided.
gtm_create_version ~53
Create a version (snapshot) of the sandbox workspace. Does NOT publish.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Version name (e.g., "Consent fixes v1") |
| notes | string | – | Optional version notes |
No output schema declared.
No examples provided.
gtm_get_tag ~35
Get full details of a single tag by ID from the sandbox workspace.
| Name | Type | Req | Description |
|---|---|---|---|
| tag_id | string | yes | The tag ID |
No output schema declared.
No examples provided.
gtm_list_tags ~31
List all tags in the sandbox GTM workspace with name, type, consent status, and firing triggers.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gtm_list_triggers ~21
List all triggers in the sandbox GTM workspace.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gtm_list_variables ~20
List all variables in the sandbox GTM workspace.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gtm_preview ~20
Generate a GTM Preview URL for the sandbox workspace.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gtm_update_tag ~70
Update a tag in the sandbox workspace. Fetches current tag, merges updates, then saves. Safety: only operates on sandbox workspace.
| Name | Type | Req | Description |
|---|---|---|---|
| tag_id | string | yes | The tag ID |
| updates_json | string | yes | JSON object with fields to update (e.g. consentSettings, parameter) |
No output schema declared.
No examples provided.
What is the io.github.mharnett/gtm-ga4 MCP server?
io.github.mharnett/gtm-ga4 is an MCP server listed in the public MCP registry as io.github.mharnett/gtm-ga4. GTM + GA4 MCP: tag management, consent auditing, workspace versioning, reports. This page covers its npm package (mcp-gtm-ga4).
Is the io.github.mharnett/gtm-ga4 MCP server safe to use?
io.github.mharnett/gtm-ga4 scores 75 out of 100 on VerifyMCP. We recorded 2 known advisories against it as of 20 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.mharnett/gtm-ga4 MCP server expose?
io.github.mharnett/gtm-ga4 exposes 13 tools: gtm_list_tags, gtm_get_tag, gtm_update_tag, gtm_create_tag, gtm_list_triggers, and 8 more. Their descriptions and schemas cost roughly 621 tokens of context every time the server is loaded.
Is the io.github.mharnett/gtm-ga4 MCP server still maintained?
io.github.mharnett/gtm-ga4 is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.mharnett/gtm-ga4 MCP server under?
io.github.mharnett/gtm-ga4 declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.