malformedlisted in Coinbase#1 by calls of 10 on this host
0.01 USDC
per call, as the listing declares it on eip155:
- Validation state
- malformed
- Uptime, 7 / 30 / 90 days
- 0% / 0% / 0%
- Calls, trailing 30 days
- 9
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-08-23 05:25 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.01 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.
At the sweep of 2026-09-15 it answered 402 but failed the required check has_bazaar_extension.
For change check the failing check asks whether the body carries the Bazaar discovery extension.
change check is a POST endpoint at kairostamp.com, listed in the Coinbase registry and filed by TOLL under market data.
change check is priced at 0.01 USDC on Base.
The request to change check is a json body with the fields url and prior_sha256.
change check returns json; the example shows changed, receipt, chain_hash, receipt_id, current_sha256, previous_sha256 and 1 other.
change check drew 9 calls from one payer in the trailing 30 days.
The last call to change check came 23 days before the snapshot, 2026-08-23.
change check is one of 10 listed endpoints on kairostamp.com, 1st by calls among them.
change check takes 45% of the calls counted across kairostamp.com.
Among comparable prices in market data, change check sits above 37% of them.
Closest in price to change check within market data: token safety at api.deepnets.ai and swap allowance holder quote at agent.api.0x.org.
The wallet paid by change check is the payee of 10 endpoints on one host.
Within market data, 86% of endpoints with counters have fewer calls.
The price of change check is declared by 1,309 other listings in market data too.
the payment options, as of 2026-09-15 16:57 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.01 USDC | exact | 0xdB6F69…808453 |
the checks, as of 2026-09-15 04:06 UTC · method · pinnableendpoint answered HTTP 402
has_bazaar_extension· the body carries the Bazaar discovery extension
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-15 04:06 UTC | malformed | 1 | daily-2026-09-15 |
| 2026-09-14 04:05 UTC | malformed | 1 | daily-2026-09-14 |
| 2026-09-13 04:05 UTC | malformed | 1 | daily-2026-09-13 |
| 2026-09-12 06:20 UTC | malformed | 1 | daily-2026-09-12 |
| 2026-09-11 09:47 UTC | malformed | 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 2026-08-23 05:25 UTC · method · live
The input and output block
{
"input": {
"body": {
"url": "https://example.com/",
"prior_sha256": "ff67a9d764d6a2367a187734e697f6a53217db9a21c101d410a113ca871a299d"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"changed": false,
"receipt": {
"url": "https://example.com/",
"sha256": "ff67a9d764d6a2367a187734e697f6a53217db9a21c101d410a113ca871a299d",
"fetched_at": "2026-08-22T03:12:04.114Z",
"byte_length": 559,
"status_code": 200,
"content_type": "text/html",
"text_preview": "<!doctype html><html lang=\"en\"><head><title>Example Domain</title>…",
"redirect_chain": []
},
"chain_hash": "d084fff3e5d852089814f7d4d3ffe9d04d1a39ce9d2e0573a95f24cf78fb584d",
"receipt_id": "85cd424c-b68b-440e-8f4f-e02147799f30",
"current_sha256": "ff67a9d764d6a2367a187734e697f6a53217db9a21c101d410a113ca871a299d",
"previous_sha256": "ff67a9d764d6a2367a187734e697f6a53217db9a21c101d410a113ca871a299d",
"previous_chain_hash": "da27fe24efc04330962d1b95c7929a9de901ad0ea49a7997edf9f2731bf88def"
}
}
}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, "change check on kairostamp.com", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/kairostamp-com-api-v1-change-check-1bdeee/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-kairostamp-com-api-v1-change-check-1bdeee-2026-09-15T16-57Z,
author = {TOLL},
title = {change check on kairostamp.com},
howpublished = {\url{https://tollindex.com/e/kairostamp-com-api-v1-change-check-1bdeee/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.