passabsent from every registry#1 by calls of 15 on this host
0.001 USDC
per call, as the listing declares it on eip155:
Compare with anotherEvery figure as JSONCite this page
the price, as of 2026-09-23 21:29 UTC · method
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- — / — / 100%
- Calls, trailing 30 days
- 6
- Unique payers, trailing 30 days
- 4
- Last called
- 2026-09-17 04:07 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.001 USDC
- Networks
- 1
How has the volume on this endpoint moved?
Among the 15 endpoints on api.zfinia.com, accessibility contrast calculator is 1st by calls.
Callers of accessibility contrast calculator supply a json body with the fields background, foreground and large_text.
accessibility contrast calculator returns json; the example shows wcag_aa, wcag_aaa, large_text, request_id, service_id, limitations and 2 others.
accessibility contrast calculator drew 6 calls from 4 unique payers in the trailing 30 days.
The last call to accessibility contrast calculator came 26 days before the snapshot, 2026-09-17.
Each call is priced at 0.001 USDC, payable on Base.
accessibility contrast calculator takes 22% of the calls counted across api.zfinia.com.
api.zfinia.com serves accessibility contrast calculator, a POST endpoint that TOLL places in the "other" category, listed in neither registry at the last pull.
accessibility contrast calculator answered the sweep of 2026-09-23 with a valid 402, as at every sweep since 2026-09-11.
Closest in price to accessibility contrast calculator within the "other" category: life advice at x402lifeadvice.vercel.app and convert timezone at 402timezones.vercel.app.
accessibility contrast calculator is the cheapest of 3,827 comparable listings in the "other" category; none asks less.
accessibility contrast calculator out-counts 92% of the 3,825 endpoints in the "other" category that carry counters.
The wallet paid by accessibility contrast calculator is the payee of 179 endpoints across 5 hosts.
accessibility contrast calculator was missing from the Coinbase registry at the pull of 2026-09-24, confirmed at the pull of 2026-09-24; that is registry presence, not liveness.
The price of accessibility contrast calculator is declared by 555 other listings in the "other" category too.
Where the sentences above compare this endpoint with others, the comparison is against the index as it stands now, live; the figures above are final.
the payment options, as of 2026-09-23 21:29 UTC · method
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0x25e824…6a9608 |
the checks, as of 2026-09-23 05:41 UTC · methodendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-23 05:41 UTC | pass | 0 | daily-2026-09-23 |
| 2026-09-22 05:50 UTC | pass | 0 | daily-2026-09-22 |
| 2026-09-21 06:14 UTC | pass | 0 | daily-2026-09-21 |
| 2026-09-20 18:52 UTC | pass | 0 | daily-2026-09-20 |
| 2026-09-19 04:15 UTC | pass | 0 | daily-2026-09-19 |
| 2026-09-18 10:00 UTC | pass | 0 | daily-2026-09-18 |
| 2026-09-17 04:13 UTC | pass | 0 | daily-2026-09-17 |
| 2026-09-16 04:14 UTC | pass | 0 | daily-2026-09-16 |
| 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.
- absence from Coinbase confirmed, rule v1
- absent from Coinbase at this pull
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-09-17 04:07 UTC · method
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,
"request_id": "example-request",
"service_id": "accessibility_contrast_calculator",
"limitations": [
"Calculation uses WCAG 2.x sRGB contrast; it does not assess full interface accessibility."
],
"contrast_ratio": 21,
"service_version": "1.0.0"
}
}
}Cite this page
This endpoint is delisted: the page is frozen at its last observation and its live URL is the stable one. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "accessibility contrast calculator on api.zfinia.com". https://tollindex.com/e/api-zfinia-com-x402-v1-accessibility-contrast-calculator-23d4a2. Accessed [access date].
BibTeX
@misc{toll-e-api-zfinia-com-x402-v1-accessibility-contrast-calculator-23d4a2-2026-10-13,
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}},
year = {2026},
month = {10},
note = {Frozen at its last observation, 2026-10-13 14:08 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.