com.qualisend/email-verification
Qualisend Email Verification
Verify email addresses and clean lists to improve deliverability and sender reputation.
alive probed 2026-10-05 · HTTP 200
12tools
2.8ktokens in Claude Opus 5.5
2.9ktokens in Claude Code
1.4 %of a 200k context window
1.6ko200k_base estimate
528 msto initialize
234 msto list tools
- Endpoint
- https://app.qualisend.com/api/mcp (streamable-http)
- Host
- app.qualisend.com
- Protocol
- 2025-11-25
- Reports itself as
- Qualisend 1.0.0
- Capabilities
- tools
- Instructions
- 772 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://app.qualisend.com
- Registry
- active, updated 2026-08-14 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| generate_dns_record | 456 | 28 % |
| check_blacklist | 185 | 11 % |
| verify_list | 148 | 9 % |
| analyze_email_header | 120 | 7 % |
| check_domain | 105 | 6 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 13:35 | alive | 528 ms | 12 | 2.8k | 1.6k |
| 2026-10-05 00:19 | alive | 459 ms | 12 | 1.6k | |
| 2026-10-04 09:58 | alive | 1.4 s | 12 | 1.6k | |
| 2026-10-04 07:51 | alive | 1.2 s | 12 | 1.6k | |
| 2026-10-03 20:31 | alive | 1.7 s | 12 | 1.6k | |
| 2026-10-03 17:49 | alive | 450 ms | 12 | 1.6k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/com.qualisend/email-verification)
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.