Is Book Signatures down?

x402 APIBy Paper & Print Calc. Price, how to call it and trust score are on the listing page.

Up

No, Book Signatures is up.

It passed its latest check 6 h ago in 541 ms. It has passed every check since 26 Oct 2026, 04:19 UTC.

Latest check

Last check
6 h ago (27 Oct 2026, 05:50 UTC)
Response time
541 ms (typical 533 ms)
Next check
In about 7 h
How often
About every 9 hours over the last 7 days

Uptime

Last 24 hours100%2 checks
Last 7 days70.0%20 checks
Last 30 days70.0%20 checks
All checks passedSome failedAll failedNot checked

Uptime is the share of checks that passed. We checked it about every 9 hours over the last 7 days.

Outages in the last 30 days

2 outages, 30 h 1 min of failed checks in total, the longest 21 h 22 min.

StartedDurationFailed checksFirst error
22 Oct 2026, 22:41 UTC21 h 22 min2Expected HTTP 402, got 530
22 Oct 2026, 09:11 UTC8 h 39 min2Expected HTTP 402, got 530

Times are when our checks ran, about every 9 hours for this listing, so start times and durations are accurate to about that.

Recent checks

WhenResultHTTPTime
27 Oct 2026, 05:50 UTCPassed402541 ms
26 Oct 2026, 17:02 UTCPassed402588 ms
26 Oct 2026, 04:19 UTCPassed402533 ms
25 Oct 2026, 16:38 UTCExpected HTTP 402, got 530530148 ms
25 Oct 2026, 04:35 UTCPassed402470 ms
24 Oct 2026, 16:41 UTCPassed402499 ms
24 Oct 2026, 06:18 UTCExpected HTTP 402, got 530530128 ms
23 Oct 2026, 20:03 UTCPassed402560 ms
23 Oct 2026, 09:08 UTCExpected HTTP 402, got 53053096 ms
22 Oct 2026, 22:41 UTCExpected HTTP 402, got 530530103 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 9 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.