Is PeptideLab Calculator down?
Down
Yes, PeptideLab Calculator is down.
It has failed every check since 22 Oct 2026, 22:06 UTC (4 days 20 h, 6 checks). Latest error: initialize returned HTTP 404. It last passed on 22 Oct 2026, 11:43 UTC.
Latest check
- Last check
- 6 h ago (27 Oct 2026, 12:11 UTC)
- Response time
- Not measured (typical 777 ms)
- Next check
- In about 21 h
- How often
- About every 11 hours over the last 7 days
Uptime
Uptime is the share of checks that passed. We checked it about every 11 hours over the last 7 days.
Outages in the last 30 days
1 outage, 4 days 20 h of failed checks in total.
| Started | Duration | Failed checks | First error |
|---|---|---|---|
| 22 Oct 2026, 22:06 UTC | Ongoing, 4 days 20 h so far | 6 | initialize returned HTTP 404 |
Times are when our checks ran, about every 11 hours for this listing, so start times and durations are accurate to about that.
Recent checks
| When | Result | HTTP | Time |
|---|---|---|---|
| 27 Oct 2026, 12:11 UTC | initialize returned HTTP 404 | 404 | 799 ms |
| 26 Oct 2026, 04:45 UTC | initialize returned HTTP 404 | 404 | 787 ms |
| 24 Oct 2026, 22:01 UTC | initialize returned HTTP 404 | 404 | 795 ms |
| 23 Oct 2026, 19:07 UTC | initialize returned HTTP 404 | 404 | 1.7 s |
| 23 Oct 2026, 08:12 UTC | initialize returned HTTP 404 | 404 | 700 ms |
| 22 Oct 2026, 22:06 UTC | initialize returned HTTP 404 | 404 | 807 ms |
| 22 Oct 2026, 11:43 UTC | Passed | 200 | 777 ms |
| 22 Oct 2026, 01:39 UTC | initialize returned HTTP 404 | 404 | 880 ms |
| 21 Oct 2026, 16:45 UTC | initialize returned HTTP 404 | 404 | 767 ms |
How we check
Up means the MCP handshake and the tool list worked, or the server asked for sign-in or payment.
Checks come from our server, about every 11 hours for this listing over the last 7 days. A failure can also mean the service blocks our checks. Two failed checks in a row count as an outage, which ends at the next passing check.
If you think a check is wrong, contact hello@toolvet.app. More on how we check and score.