dev.mailprobe/mailprobe
MailProbe
Verify email addresses in real time: deliverability, disposable and role addresses, typo fixes.
alive probed 2026-10-11 · HTTP 200
2tools
427tokens in Claude Opus 5.5
447tokens in Claude Code
0.2 %of a 200k context window
262o200k_base estimate
640 msto initialize
558 msto list tools
- Endpoint
- https://mailprobe.dev/mcp (streamable-http)
- Host
- mailprobe.dev
- Protocol
- 2025-11-25
- Reports itself as
- mailprobe 1.1.1
- Capabilities
- tools
- Instructions
- 363 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/jamalofski/mailprobe-mcp
- Website
- https://mailprobe.dev/api-docs/#mcp
- Registry
- active, updated 2026-10-10 · registry entry
- Reachable
- 5 of the last 5 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| verify_emails | 216 | 82 % |
| get_credits | 46 | 18 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-11 10:19 | alive | 922 ms | 2 | 427 | 262 |
| 2026-10-09 11:14 | alive | 2.0 s | 2 | 427 | 262 |
| 2026-10-08 11:08 | alive | 959 ms | 2 | 427 | 262 |
| 2026-10-05 13:58 | alive | 640 ms | 2 | 427 | 262 |
| 2026-10-05 00:24 | alive | 485 ms | 2 | 262 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.mailprobe/mailprobe)
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.