Is Merchant Key down?

x402 APIBy underground.substratesymposium.com. Price, how to call it and trust score are on the listing page.

Up

No, Merchant Key is up.

It passed its latest check 4 h ago in 348 ms, and every check since we started checking it on 11 Oct 2026.

Latest check

Last check
4 h ago (15 Oct 2026, 01:13 UTC)
Response time
348 ms (typical 408 ms)
Next check
In about 4 min
How often
About every 4 hours over the last 7 days

Uptime

Last 24 hours100%5 checks
Last 7 days100%22 checks
Last 30 days100%22 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

No outages in the last 30 days. An outage starts when two checks in a row fail and ends at the next passing check.

Recent checks

WhenResultHTTPTime
15 Oct 2026, 01:13 UTCPassed402348 ms
14 Oct 2026, 20:55 UTCPassed402408 ms
14 Oct 2026, 16:37 UTCPassed402360 ms
14 Oct 2026, 12:40 UTCPassed402409 ms
14 Oct 2026, 08:50 UTCPassed402635 ms
14 Oct 2026, 04:50 UTCPassed402416 ms
14 Oct 2026, 00:50 UTCPassed402496 ms
13 Oct 2026, 21:03 UTCPassed402385 ms
13 Oct 2026, 17:08 UTCPassed402410 ms
13 Oct 2026, 13:14 UTCPassed402338 ms

Price and payment address

Price
$1.00 per call on Base
Pays to
0xA3bA…8E08

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.