passlisted in Coinbase#258 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 13:55 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 9 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 ttkg first appeared in TOLL's pulls on 2026-09-28.
At api.magentlab.com, calc ttkg takes POST requests, is listed in the Coinbase registry, and falls under the "other" category by TOLL's rules.
calc ttkg is priced at 0.005 USDC on Base.
Requests carry a JSON body with the field items.
calc ttkg answered the sweep of 2026-09-30 with a valid 402, as at every sweep since 2026-09-28.
A response from calc ttkg, as declared, includes path, count and items.
Among the 844 endpoints on api.magentlab.com, calc ttkg is tied 258th by calls with 586 others.
In the trailing 30 days: one call, one payer.
calc ttkg was last called 3 days before the snapshot.
Closest in price to calc ttkg within the "other" category: tech stack at agent402.tools and phone intelligence at x402.orthogonal.com.
calc ttkg is priced above 46% of comparable listings in the "other" category.
The wallet paid by calc ttkg is the payee of 844 endpoints on one host.
The seller's own tags are ttkg, potassium, kidney and osmolality.
The price of calc ttkg is declared by 739 other listings in the "other" category too.
the payment options, as of 2026-10-01 05:50 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x836Be2…c19Ee2 |
the checks, as of 2026-09-30 08:32 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-30 08:32 UTC | pass | 0 | daily-2026-09-30 |
| 2026-09-29 20:39 UTC | pass | 0 | daily-2026-09-29 |
| 2026-09-28 16:47 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 13:55 UTC · method · live
The input and output block
{
"input": {
"body": {
"items": [
{
"urine_k_mmol_l": 40,
"potassium_mmol_l": 4,
"urine_osm_mosm_kg": 600,
"plasma_osm_mosm_kg": 300
},
{
"urine_k_mmol_l": 40,
"potassium_mmol_l": 4,
"urine_osm_mosm_kg": 600,
"plasma_osm_mosm_kg": 300
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/ttkg",
"count": 2,
"items": [
{
"ttkg": 5,
"formula": "ethier",
"citation": {
"id": "ethier-1990",
"doi": "10.1016/S0272-6386(12)80076-X",
"pmid": "2321642",
"title": "The transtubular potassium concentration in patients with hypokalemia and hyperkalemia",
"source": "Am J Kidney Dis. 1990;15(4):309-315",
"authors": "Ethier JH, Kamel KS, Magner PO, Lemann J Jr, Halperin ML"
},
"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.",
"urine_k_mmol_l": 40,
"potassium_mmol_l": 4,
"urine_osm_mosm_kg": 600,
"formula_expression": "ttkg = (urine_k_mmol_l / potassium_mmol_l) / (urine_osm_mosm_kg / plasma_osm_mosm_kg)",
"plasma_osm_mosm_kg": 300
},
{
"ttkg": 5,
"formula": "ethier",
"citation": {
"id": "ethier-1990",
"doi": "10.1016/S0272-6386(12)80076-X",
"pmid": "2321642",
"title": "The transtubular potassium concentration in patients with hypokalemia and hyperkalemia",
"source": "Am J Kidney Dis. 1990;15(4):309-315",
"authors": "Ethier JH, Kamel KS, Magner PO, Lemann J Jr, Halperin ML"
},
"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.",
"urine_k_mmol_l": 40,
"potassium_mmol_l": 4,
"urine_osm_mosm_kg": 600,
"formula_expression": "ttkg = (urine_k_mmol_l / potassium_mmol_l) / (urine_osm_mosm_kg / plasma_osm_mosm_kg)",
"plasma_osm_mosm_kg": 300
}
]
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-10-01 05:50 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 ttkg on api.magentlab.com", snapshot of 2026-10-01 05:50 UTC. https://tollindex.com/e/api-magentlab-com-api-calc-ttkg-b71737/at/2026-10-01T05-50Z. Accessed [access date].
BibTeX
@misc{toll-e-api-magentlab-com-api-calc-ttkg-b71737-2026-10-01T05-50Z,
author = {TOLL},
title = {calc ttkg on api.magentlab.com},
howpublished = {\url{https://tollindex.com/e/api-magentlab-com-api-calc-ttkg-b71737/at/2026-10-01T05-50Z}},
year = {2026},
month = {10},
note = {Pinned view of the snapshot of 2026-10-01 05:50 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.