Is Roman Numerals down?

x402 APIBy Music Theory. Price, how to call it and trust score are on the listing page.

Up

No, Roman Numerals is up again.

It passed its latest check 6 h ago in 529 ms. Before that it failed our checks for 4 days 9 h, from 22 Oct 2026, 10:01 UTC.

Latest check

Last check
6 h ago (27 Oct 2026, 06:53 UTC)
Response time
529 ms (typical 525 ms)
Next check
In about 7 h
How often
About every 4 hours over the last 7 days

Uptime

Last 24 hours100%2 checks
Last 7 days64.3%14 checks
Last 30 days64.3%14 checks
All checks passedSome failedAll failedNot checked

Uptime is the share of checks that passed. We checked it about every 4 hours over the last 7 days.

Outages in the last 30 days

1 outage, 4 days 9 h of failed checks in total.

StartedDurationFailed checksFirst error
22 Oct 2026, 10:01 UTC4 days 9 h5Expected HTTP 402, got 530

Times are when our checks ran, about every 4 hours for this listing, so start times and durations are accurate to about that.

Recent checks

WhenResultHTTPTime
27 Oct 2026, 06:53 UTCPassed402529 ms
26 Oct 2026, 18:35 UTCPassed402576 ms
25 Oct 2026, 11:29 UTCExpected HTTP 402, got 530530121 ms
24 Oct 2026, 06:01 UTCExpected HTTP 402, got 530530146 ms
23 Oct 2026, 00:20 UTCExpected HTTP 402, got 530530105 ms
22 Oct 2026, 14:15 UTCExpected HTTP 402, got 530530233 ms
22 Oct 2026, 10:01 UTCExpected HTTP 402, got 530530194 ms
22 Oct 2026, 05:46 UTCPassed402527 ms
22 Oct 2026, 01:44 UTCPassed402525 ms
21 Oct 2026, 21:49 UTCPassed402625 ms

Price and payment address

Price
$0.02 per call on Polygon
Pays to
0xb531…DBDa

No price or payment address changes recorded.

How we check

Up means the endpoint answered an unpaid test request with a valid x402 payment challenge. We never pay, so we can't see whether the paid response works.

Checks come from our server, about every 4 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. To see what an agent gets right now, check it yourself.