io.github.MailFlat/mailflat-mcp
MailFlat
Is the MailFlat MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.
Real email inboxes for AI agents: open an address, read the one-time code, send mail.
alive probed 2026-11-14 · unchanged since 2026-10-30
- Run it
- uvx mailflat-mcp@0.9.2 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- mailflat 0.9.2
- Capabilities
- experimental, prompts, resources, tools
- Instructions
- none
- Of a 1M window
- 0.3 % of a 1M context window
- Count
- 2.8k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 3.0k. The o200k_base estimate is 1.6k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/MailFlat/mailflat-sdks
- Website
- https://mailflat.net/docs/ai/mcp
- Registry
- active, updated 2026-08-27 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.75×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| send_email | 482 | 276 | 17 % |
| wait_until_sent | 468 | 268 | 17 % |
| reply | 370 | 212 | 13 % |
| create_inbox | 354 | 203 | 13 % |
| read_messages | 229 | 131 | 8 % |
Compare this server with others.
More servers
Other registry entries on pypi.org, the ones next to this name; all of them.
- dashAI (unofficial) io.github.Maarmapa/dashai-mcp · needs env
- Hybrid Recursive Ladder io.github.MagicSquarekey/hybrid-recursive-ladder · alive
- fish-bridge — Session Knowledge Graph io.github.MakeaMouse/fish-bridge-mcp · alive
- PADAM · NOCTURNE memory io.github.MaksimGalatin/padam-nocturne · alive
- FastMCP - FastAPI MCP Framework & Runner io.github.Manas-maker/fast-mcp · needs args
- Rhein-Ruhr Fahrplan MCP io.github.MarcProe/rhein-ruhr-fahrplan-mcp · alive
- SourceWeave Web Search io.github.MRNAQA/sourceweave-web-search · crashed on start
- io.github.MShekow/package-version-check-mcp · crashed on start
Servers that mention address or inboxes.
- AQL PropertyCheck — check one exact address (Gold Coast & Brisbane) ai.alphaquantlabs/propertycheck · alive
- bodenrichtwert.ai — Verlässliche Bodenrichtwerte für Mensch und KI ai.bodenrichtwert/mcp · needs auth
- alfred_ ai.get-alfred/alfred · needs auth
- Postfleet ai.postfleet/postfleet · needs auth
- Probity Wallet Reputation ai.probitylabs/wallet-reputation · alive
- ai.sentfrom/mcp · needs auth
- Anjal app.anjal/anjal · needs auth
- Command Mail app.commandmail/mail · needs auth
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.