io.github.optipub/gmail-postmaster-tools
Gmail Postmaster Tools
Is the Gmail Postmaster Tools MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Gmail Postmaster Tools v2 — domains, traffic metrics, and compliance via your own Google OAuth.
alive probed 2026-11-14 · unchanged since 2026-10-31
- Bundle
- https://github.com/optipub/gmail-postmaster-tools-mcp/releases/download/v1.0.1/gmail-postmaster-tools.mcpb (MCPB, for a client that installs bundles; probed in a container with the network off)
- Host
- github.com
- Reports itself as
- gmail-postmaster-tools 1.0.1
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.2 % of a 1M context window
- Count
- 1.5k tokens in Claude Opus 5.5, exact, measured 2026-10-31. With the Claude Code prefix mcp__…__ on each tool name: 1.6k. The o200k_base estimate is 785. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/optipub/gmail-postmaster-tools-mcp
- Registry
- active, updated 2026-07-22 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.93×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| query_domain_stats | 661 | 343 | 44 % |
| get_compliance_status | 206 | 107 | 14 % |
| list_domains | 181 | 94 | 12 % |
| gpt_authenticate | 166 | 86 | 11 % |
| get_domain | 145 | 75 | 10 % |
Compare this server with others.
More servers
Other registry entries on github.com, the ones next to this name; all of them.
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- io.github.orieg/gws-connector · alive
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- canary ibkr MCP io.github.osauer/ibkr · alive
Servers that mention gmail.
- FGAC.ai: Multiple Gmail Accounts, Google Sheets & Docs ai.fgac/fgac · needs auth
- alfred_ ai.get-alfred/alfred · needs auth
- mailmcp ai.mailmcp/mailmcp · needs auth
- ai.powerline/inbox-preview · alive
- ai.waystation/gmail · paid (402)
- ai.smithery/faithk7-gmail-mcp · not found
- Domain Mail Check app.openkrill/mailcheck · alive
- ai.smithery/sebastianall1977-gmail-mcp · not found
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.