passlisted in Coinbase#1 by calls of 4 on this host
0.002 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 08:08 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.002 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.
contrast, a POST endpoint on color.openverbs.com, appears in the Coinbase registry; TOLL's taxonomy puts it in compute.
On Base, contrast asks 0.002 USDC per call.
Requests carry a json body with the fields background and foreground.
contrast declares nothing about its output; validate flags that as advisory, not a verdict.
contrast answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
contrast shares color.openverbs.com with 3 other listed endpoints and is tied 1st by calls with 3 others.
contrast takes 25% of the calls counted across color.openverbs.com.
One payer accounts for all 3 calls to contrast over 30 days.
contrast was last called 9 days before the snapshot.
Closest in price to contrast within compute: data keeper opps at gblin-sentinel.vercel.app and paid solana priority fee at api.oblique.markets.
contrast is among the cheapest in compute; 10% of comparable listings ask less.
Across compute, 482 endpoints carry counters and contrast out-counts 61% of them.
The wallet paid by contrast is the payee of 370 endpoints across 89 hosts.
The seller's own tags are wcag contrast check, color contrast ratio, accessibility color check and aa aaa contrast.
The price of contrast is declared by 29 other listings in compute too.
the payment options, as of 2026-09-15 16:57 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.002 USDC | exact | 0xb3f4de…C2194A |
the checks, as of 2026-09-15 04:32 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 04:32 UTC | pass | 1 | daily-2026-09-15 |
| 2026-09-14 04:28 UTC | pass | 1 | daily-2026-09-14 |
| 2026-09-13 04:27 UTC | pass | 1 | daily-2026-09-13 |
| 2026-09-12 06:43 UTC | pass | 1 | daily-2026-09-12 |
| 2026-09-11 10:15 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 08:08 UTC · method · live
The input and output block
{
"input": {
"body": {
"background": "example",
"foreground": "example"
},
"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, "contrast on color.openverbs.com", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/color-openverbs-com-v1-contrast-3f789f/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-color-openverbs-com-v1-contrast-3f789f-2026-09-15T16-57Z,
author = {TOLL},
title = {contrast on color.openverbs.com},
howpublished = {\url{https://tollindex.com/e/color-openverbs-com-v1-contrast-3f789f/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.