passlisted in Coinbase#2 by calls of 4 on this host
0.004 USDC
per call, as the listing declares it on eip155:
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- 100% / 100% / 100%
- Calls, trailing 30 days
- 3
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-06 08:12 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.004 USDC
- Networks
- 1
How big is this endpoint among the ones like it?
No trace is drawn of this endpoint’s own volume. Its counters have changed 1 time across 28 observations, and 3 changes are the fewest this site will draw a trace through, because two points and a guess are not a series. Every observation is in the JSON.
otp.openverbs.com serves hotp, a POST endpoint that TOLL places in inference, listed in the Coinbase registry.
Per call, hotp declares 0.004 USDC on Base.
hotp takes a json body with the fields digits, secret, counter and algorithm.
hotp declares nothing about its output; validate flags that as advisory, not a verdict.
hotp answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
hotp is one of 4 listed endpoints on otp.openverbs.com, tied 2nd by calls with 2 others among them.
hotp takes 23% of the calls counted across otp.openverbs.com.
Over 30 days: 3 calls, one payer.
hotp was last called 9 days before the snapshot.
Closest in price to hotp within inference: vin decode at agent402.tools and chat completions at api.surplusintelligence.ai.
Among comparable prices in inference, hotp sits above 16% of them.
hotp out-counts 75% of the 2,297 endpoints in inference that carry counters.
The wallet paid by hotp is the payee of 370 endpoints across 89 hosts.
Seller tags: hotp api, generate hotp, counter based otp and hmac one time password.
35 other listings in inference declare exactly the same price.
the payment options, as of 2026-09-15 16:57 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.004 USDC | exact | 0xb3f4de…C2194A |
the checks, as of 2026-09-15 03:59 UTC · method · pinnableendpoint answered HTTP 402
bazaar.info.output· advisory, does not affect the verdict · output metadata is present (advisory)
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-15 03:59 UTC | pass | 1 | daily-2026-09-15 |
| 2026-09-14 03:58 UTC | pass | 1 | daily-2026-09-14 |
| 2026-09-13 03:58 UTC | pass | 1 | daily-2026-09-13 |
| 2026-09-12 06:13 UTC | pass | 1 | daily-2026-09-12 |
| 2026-09-11 09:38 UTC | pass | 1 | daily-2026-09-11 |
Presence in a registry, not liveness of the service (method). Newest first.
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-09-06 08:12 UTC · method · live
The input and output block
{
"input": {
"body": {
"digits": 6,
"secret": "example",
"counter": 1,
"algorithm": "SHA1"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": null
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-09-15 16:57 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "hotp on otp.openverbs.com", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/otp-openverbs-com-v1-hotp-111dab/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-otp-openverbs-com-v1-hotp-111dab-2026-09-15T16-57Z,
author = {TOLL},
title = {hotp on otp.openverbs.com},
howpublished = {\url{https://tollindex.com/e/otp-openverbs-com-v1-hotp-111dab/at/2026-09-15T16-57Z}},
year = {2026},
month = {9},
note = {Pinned view of the snapshot of 2026-09-15 16:57 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.