passlisted in Coinbase#1 by calls of 2 on this host
0.001 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
- 6
- Unique payers, trailing 30 days
- 4
- Last called
- 2026-09-09 22:06 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.001 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.
TOLL files accessibility contrast calculator under the "other" category: a POST endpoint on api.zfinia.com, listed in the Coinbase registry.
Per call, accessibility contrast calculator declares 0.001 USDC on Base.
accessibility contrast calculator takes a json body with the fields background, foreground and large_text.
A response from accessibility contrast calculator, as declared, includes wcag_aa, wcag_aaa, large_text, limitations and contrast_ratio.
accessibility contrast calculator answered the sweep of 2026-09-15 with a valid 402, as at every sweep since 2026-09-11.
accessibility contrast calculator is one of 2 listed endpoints on api.zfinia.com, 1st by calls among them.
accessibility contrast calculator takes 75% of the calls counted across api.zfinia.com.
Over 30 days: 6 calls, 4 payers.
accessibility contrast calculator was last called 6 days before the snapshot.
Closest in price to accessibility contrast calculator within the "other" category: useless fact at x402uselessfacts.vercel.app and life advice at x402lifeadvice.vercel.app.
accessibility contrast calculator is the cheapest of 2,780 comparable listings in the "other" category; none asks less.
accessibility contrast calculator out-counts 92% of the 2,777 endpoints in the "other" category that carry counters.
The wallet paid by accessibility contrast calculator is the payee of 10 endpoints across 5 hosts.
The price of accessibility contrast calculator is declared by 1,267 other listings in the "other" category too.
the payment options, as of 2026-09-15 16:57 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0x25e824…6a9608 |
the checks, as of 2026-09-15 04:11 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-15 04:11 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 04:10 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 04:09 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 06:25 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 09:53 UTC | pass | 0 | 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 2026-09-09 22:06 UTC · method · live
The input and output block
{
"input": {
"body": {
"background": "#ffffff",
"foreground": "#000000",
"large_text": false
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"wcag_aa": true,
"wcag_aaa": true,
"large_text": false,
"limitations": [
"Calculation uses WCAG 2.x sRGB contrast; it does not assess full interface accessibility."
],
"contrast_ratio": 21
}
}
}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, "accessibility contrast calculator on api.zfinia.com", snapshot of 2026-09-15 16:57 UTC. https://tollindex.com/e/api-zfinia-com-x402-v1-accessibility-contrast-calculator-23d4a2/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-api-zfinia-com-x402-v1-accessibility-contrast-calculator-23d4a2-2026-09-15T16-57Z,
author = {TOLL},
title = {accessibility contrast calculator on api.zfinia.com},
howpublished = {\url{https://tollindex.com/e/api-zfinia-com-x402-v1-accessibility-contrast-calculator-23d4a2/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.