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
Chalk Labs
Need help deploying Gmail Postmaster Tools?
Chalk Labs sets up agents like this inside real teams: connected to your tools, tested on your data, with a human in the loop where it matters.
Install
Works with Claude Desktop. Read the repository before you give any tool access to your data.
MCP bundle (.mcpb): open it with Claude Desktop.
Get the weekly diff
The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.
About
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
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_statusget_domaingpt_auth_statuslist_domainsquery_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_statusGet 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_domainGet metadata for a single registered domain (verification state, permission, timestamps). Calls GET /v2/domains/{domain}.
gpt_auth_statusCheck whether you are signed in to Gmail Postmaster Tools and when the access token expires.
gpt_authenticateSign 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_outDelete the cached Google tokens (sign out).
list_domainsList the domains registered in your Gmail Postmaster Tools account, with verification state and your permission level. Calls GET /v2/domains.
query_domain_statsQuery 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
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
More from optipub
Done for you
Rather not set it up yourself?
Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.
See how we build AI agents →Read the case studies
Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.
- launches shipped
- 50+
- launches shipped
- media placements
- 500+
- media placements
- founders on every account
- 2
- founders on every account
Press we've placed: Forbes · CoinDesk · Decrypt · Cointelegraph · The Block
Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.
Get Gmail Postmaster Tools running in your business
Tell us what you want to automate. A founder replies within one working day with a plan, not a pitch deck.
Cite this page
Gmail Postmaster Tools MCP server. Agent Mart. https://agentmart.dev/connectors/optipub-gmail-postmaster-tools (last updated 2026-10-24)