Gmail Postmaster Tools
MCPB · GMAIL-POSTMASTER-TOOLS.MCPB · SCANNED AUG 3
Gmail Postmaster Tools v2 — domains, traffic metrics, and compliance via your own Google OAuth.
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 →
Supply Chain Security13
- Malware scan not yet available for this package.Unverified
- CVE data not yet available for this package.Unverified
- No install/post-install scripts declared.Pass
- Dependency-health data not yet available.Unverified
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 11 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 (excellent).Pass
- Tool/resource definitions use about 571 tokens (~81/item across 7 items; 7 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
- Stability observed for 7 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
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
mcpb · gmail-postmaster-tools.mcpb
Download bundleEvery 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.
- 3 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Aug 26 +3
- Stability: unverified → 0.20 ▲ functional
- 1 Aug 26 −7
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 28 Jul 26 +35
- Tool coverage: unverified → 100 ▲ functional
- First check of Schema quality: pass functional
- First check of Tool coverage: 100 functional
- First check of Schema quality: fail functional
- First check of Schema quality: excellent functional
- 26 Jul 26 15
First indexed and scored.
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → 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 3 Aug 2026 · Analysed mcpb/https://github.com/optipub/gmail-postmaster-tools-mcp/releases/download/v1.0.1/gmail-postmaster-tools.mcpb
Provenance none
Ecosystem: mcpb · Outcome: none
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.
get_compliance_status ~84
Get the sender compliance status for a domain — verdicts for SPF, DKIM, DMARC, alignment, message formatting, DNS records, encryption, user-reported spam rate, and one-click / honored unsubscribe. Calls GET /v2/domains/{domain}/complianceStatus.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | Fully-qualified domain name, e.g. example.com. |
No output schema declared.
No examples provided.
get_domain ~51
Get metadata for a single registered domain (verification state, permission, timestamps). Calls GET /v2/domains/{domain}.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | Fully-qualified domain name, e.g. mail.example.com. |
No output schema declared.
No examples provided.
gpt_auth_status ~28
Check whether you are signed in to Gmail Postmaster Tools and when the access token expires.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gpt_authenticate ~70
Sign in to Gmail Postmaster Tools. Opens your browser for a Google account login (OAuth 2.0 authorization-code + PKCE over a 127.0.0.1 loopback) using the Google OAuth client you configured, and caches the tokens. Run this once before fetching data.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gpt_sign_out ~19
Delete the cached Google tokens (sign out).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_domains ~72
List the domains registered in your Gmail Postmaster Tools account, with verification state and your permission level. Calls GET /v2/domains.
| Name | Type | Req | Description |
|---|---|---|---|
| pageSize | number | — | Optional max number of domains (default 10, max 200). |
| pageToken | string | — | Optional page token from a previous call. |
No output schema declared.
No examples provided.
query_domain_stats ~247
Query Gmail traffic metrics for a domain over a date range. Metrics include SPAM_RATE, AUTH_SUCCESS_RATE (filter auth_type=spf|dkim|dmarc), TLS_ENCRYPTION_RATE (filter traffic_direction=inbound|outbound), DELIVERY_ERROR_RATE/COUNT (optional filter error_type=...), FEEDBACK_LOOP_SPAM_RATE/ID. Defaults to SPAM_RATE over the last ~7 days, daily. Calls POST /v2/domains/{domain}/domainStats:query.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | Fully-qualified domain name, e.g. example.com. |
| end_date | string | — | End date yyyy-MM-dd (inclusive). Defaults to yesterday. |
| granularity | string | — | DAILY (per-day) or OVERALL (totals for the period). Default DAILY. |
| metrics | array | — | Metrics to fetch. Each item is either a standard metric name (string) or an object { standardMetric, filter, name }. Metrics like AUTH_SUCCESS_RATE and TLS_ENCRYPTION_RATE require a filter. Defaults… |
| start_date | string | — | Start date yyyy-MM-dd (inclusive). Defaults to ~8 days ago. |
No output schema declared.
No examples provided.