Gmail Postmaster Tools

Gmail Postmaster Tools v2 — domains, traffic metrics, and compliance via your own Google OAuth.

Connector by optipub · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 7

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Works with Claude Desktop. Read the repository before you give any tool access to your data.

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MCP bundle (.mcpb): open it with Claude Desktop.

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Gmail Postmaster Tools v2 — domains, traffic metrics, and compliance via your own Google OAuth.

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools: 5 read · 1 write · 1 delete
Secrets: None asked for
Install scripts: Not scanned yet
Runs as: Downloaded binary

Tools by what they do 7

Read from the source code; the running server may list different tools.

Read 5 · Look things up without changing anything.

get_compliance_status
get_domain
gpt_auth_status
list_domains
query_domain_stats

Write 1 · Create, change, send or run things.

gpt_authenticate

Delete 1 · Delete, drop, revoke or wipe things.

gpt_sign_out

Network hosts it talks to 1

github.com · found in install command

Tools (7)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

get_compliance_status
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.
get_domain
Get metadata for a single registered domain (verification state, permission, timestamps). Calls GET /v2/domains/{domain}.
gpt_auth_status
Check whether you are signed in to Gmail Postmaster Tools and when the access token expires.
gpt_authenticate
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.
gpt_sign_out
Delete the cached Google tokens (sign out).
list_domains
List the domains registered in your Gmail Postmaster Tools account, with verification state and your permission level. Calls GET /v2/domains.
query_domain_stats
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.

Signals

Stars: 7
Forks: 0
Open issues: 0
Last commit: Jul 22, 2026 (3 months ago)
Last release: Jul 22, 2026 (3 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name: io.github.optipub/gmail-postmaster-tools
Version: 1.0.1
Auth: No auth
Packages: mcpb https://github.com/optipub/gmail-postmaster-tools-mcp/releases/download/v1.0.1/gmail-postmaster-tools.mcpb
License: MIT
Repository: github.com/optipub/gmail-postmaster-tools-mcp
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Official MCP Registry github-graphql