passlisted in Coinbase#83 by calls of 844 on this host
0.005 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
- 1
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-28 13:53 UTC
- First observed by TOLLderived
- 2026-09-28
- Pricederived
- 0.005 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 2 times across 13 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.
calc feurea shares api.magentlab.com with 843 other listed endpoints and is tied 83rd by calls with 761 others.
Callers of calc feurea supply a JSON body with the field items.
The declared response carries path, count and items.
calc feurea drew a single call from a single payer in the trailing 30 days.
The last call to calc feurea came 4 days before the snapshot, 2026-09-28.
It is priced at 0.005 USDC on Base.
At api.magentlab.com, calc feurea takes POST requests, is listed in the Coinbase registry, and falls under the "other" category by TOLL's rules.
calc feurea answered the sweep of 2026-10-02 with a valid 402, as at every sweep since 2026-09-28.
Closest in price to calc feurea within the "other" category: ping at www.api-xpay.com and aviation airport status at api.x402node.dev.
calc feurea is priced above 43% of comparable listings in the "other" category.
The wallet paid by calc feurea is the payee of 844 endpoints on one host.
The seller's own tags are feurea, feun, kidney and calculator.
The price of calc feurea is declared by 737 other listings in the "other" category too.
the payment options, as of 2026-10-02 12:31 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x836Be2…c19Ee2 |
the checks, as of 2026-10-02 16:28 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-02 16:28 UTC | pass | 0 | daily-2026-10-02 |
| 2026-10-01 09:13 UTC | pass | 0 | daily-2026-10-01 |
| 2026-09-30 08:40 UTC | pass | 0 | daily-2026-09-30 |
| 2026-09-29 20:47 UTC | pass | 0 | daily-2026-09-29 |
| 2026-09-28 16:48 UTC | pass | 0 | new-after-daily-2026-09-28 |
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 2026-09-28 13:53 UTC · method · live
The input and output block
{
"input": {
"body": {
"items": [
{
"bun_mg_dl": 20,
"creatinine_mg_dl": 2,
"urine_urea_mg_dl": 200,
"creatinine_umol_l": 176.84,
"urine_creatinine_mg_dl": 100,
"urine_creatinine_umol_l": 8842
},
{
"bun_mg_dl": 20,
"creatinine_mg_dl": 2,
"urine_urea_mg_dl": 200,
"creatinine_umol_l": 176.84,
"urine_creatinine_mg_dl": 100,
"urine_creatinine_umol_l": 8842
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/feurea",
"count": 2,
"items": [
{
"units": "%",
"formula": "carvounis",
"citation": {
"id": "carvounis-2002",
"doi": "10.1046/j.1523-1755.2002.00683.x",
"title": "Significance of the fractional excretion of urea in the differential diagnosis of acute renal failure",
"source": "Kidney Int. 2002;62(6):2223-2229",
"authors": "Carvounis CP, Nisar S, Guro-Razuman S"
},
"bun_mg_dl": 20,
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"carvounis_band": "low",
"feurea_percent": 20,
"creatinine_mg_dl": 2,
"urine_urea_mg_dl": 200,
"formula_expression": "FEUrea_percent = 100 * (urine_urea_mg_dl * plasma_creatinine_mg_dl) / (bun_mg_dl * urine_creatinine_mg_dl)",
"urine_creatinine_mg_dl": 100
},
{
"units": "%",
"formula": "carvounis",
"citation": {
"id": "carvounis-2002",
"doi": "10.1046/j.1523-1755.2002.00683.x",
"title": "Significance of the fractional excretion of urea in the differential diagnosis of acute renal failure",
"source": "Kidney Int. 2002;62(6):2223-2229",
"authors": "Carvounis CP, Nisar S, Guro-Razuman S"
},
"bun_mg_dl": 20,
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"carvounis_band": "low",
"feurea_percent": 20,
"creatinine_mg_dl": 2,
"urine_urea_mg_dl": 200,
"formula_expression": "FEUrea_percent = 100 * (urine_urea_mg_dl * plasma_creatinine_mg_dl) / (bun_mg_dl * urine_creatinine_mg_dl)",
"urine_creatinine_mg_dl": 100
}
]
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-10-02 12:31 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "calc feurea on api.magentlab.com", snapshot of 2026-10-02 12:31 UTC. https://tollindex.com/e/api-magentlab-com-api-calc-feurea-be8e47/at/2026-10-02T12-31Z. Accessed [access date].
BibTeX
@misc{toll-e-api-magentlab-com-api-calc-feurea-be8e47-2026-10-02T12-31Z,
author = {TOLL},
title = {calc feurea on api.magentlab.com},
howpublished = {\url{https://tollindex.com/e/api-magentlab-com-api-calc-feurea-be8e47/at/2026-10-02T12-31Z}},
year = {2026},
month = {10},
note = {Pinned view of the snapshot of 2026-10-02 12:31 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.