io.github.serg-tanichev/email-spam-tester
email-spam-tester
Test an email before it goes out: a disposable address, 41 checks with RFC citations, a fix plan.
alive probed 2026-10-12 · HTTP 200
4tools
1.4ktokens in Claude Opus 5.5
1.4ktokens in Claude Code
0.7 %of a 200k context window
876o200k_base estimate
581 msto initialize
61 msto list tools
- Endpoint
- https://email-spam-tester.com/mcp (streamable-http)
- Host
- email-spam-tester.com
- Protocol
- 2025-11-25
- Reports itself as
- email-spam-tester
- Capabilities
- prompts, resources, tools
- Instructions
- 324 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-12. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/serg-tanichev/email-spam-tester-mcp
- Registry
- active, updated 2026-09-17 · registry entry
- Reachable
- 7 of the last 7 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| get_test_address | 401 | 46 % |
| wait_for_report | 220 | 25 % |
| get_message_source | 139 | 16 % |
| get_report | 116 | 13 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-12 11:55 | alive | 3.0 s | 4 | 1.4k | 876 |
| 2026-10-05 16:28 | alive | 581 ms | 4 | 1.4k | 840 |
| 2026-10-05 00:55 | alive | 477 ms | 4 | 840 | |
| 2026-10-04 10:07 | alive | 1.4 s | 4 | 840 | |
| 2026-10-04 08:00 | alive | 1.3 s | 4 | 840 | |
| 2026-10-03 20:40 | alive | 849 ms | 4 | 840 | |
| 2026-10-03 17:55 | alive | 1.1 s | 4 | 840 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.serg-tanichev/email-spam-tester)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.