passlisted in Coinbase#8 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
- 2
- Unique payers, trailing 30 days
- 1
- Last called
- 2026-09-28 14:25 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 1 time across 10 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 first observed it on 2026-09-28.
TOLL files calc chosen under search: a POST endpoint on api.magentlab.com, listed in the Coinbase registry.
Per call, calc chosen declares 0.005 USDC on Base.
The listing describes the request as a JSON body with the field items.
calc chosen answered the sweep of 2026-10-01 with a valid 402, as at every sweep since 2026-09-28.
A response from calc chosen, as declared, includes path, count and items.
With 844 endpoints listed on api.magentlab.com, calc chosen is tied 8th by calls with 164 others.
One payer accounts for all 2 calls to calc chosen over 30 days.
The most recent call was 3 days before the snapshot.
calc chosen sits nearest in price to tweets search (x402.twit.sh) and search site (x402.agentutility.ai) among listings in search.
calc chosen is priced above 22% of comparable listings in search.
The wallet paid by calc chosen is the payee of 844 endpoints on one host.
Seller tags: chosen, covid-19, albumin and spo2.
The price of calc chosen is declared by 315 other listings in search too.
the payment options, as of 2026-10-01 22:40 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x836Be2…c19Ee2 |
the checks, as of 2026-10-01 09:39 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-01 09:39 UTC | pass | 0 | daily-2026-10-01 |
| 2026-09-30 09:06 UTC | pass | 0 | daily-2026-09-30 |
| 2026-09-29 21:11 UTC | pass | 0 | daily-2026-09-29 |
| 2026-09-28 16:49 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 14:25 UTC · method · live
The input and output block
{
"input": {
"body": {
"items": [
{
"age": 40,
"albumin_g_dl": 4,
"spo2_percent": 99
},
{
"age": 40,
"albumin_g_dl": 4,
"spo2_percent": 99
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/chosen",
"count": 2,
"items": [
{
"age": 40,
"score": 55,
"formula": "chosen",
"citation": {
"id": "levine-2020-chosen",
"doi": "10.1007/s11606-020-06353-5",
"pmid": "33274414",
"title": "Derivation of a clinical risk score to predict 14-day occurrence of hypoxia, ICU admission, and death among patients with coronavirus disease 2019",
"source": "J Gen Intern Med. 2021;36(3):730-737",
"authors": "Levine DM, Lipsitz SR, Co Z, Song W, Dykes PC, Samal L"
},
"cutpoint": 30,
"max_score": 55,
"components": [
{
"value": 40,
"factor": "age",
"points": 5,
"present": true
},
{
"value": 99,
"factor": "spo2_percent",
"points": 21,
"present": true
},
{
"value": 4,
"factor": "albumin_g_dl",
"points": 29,
"present": true
}
],
"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.",
"albumin_g_dl": 4,
"spo2_percent": 99,
"formula_expression": "CHOSEN = age_points + spo2_points + albumin_points; Levine 2020 Figure 2; age 18-45 → 5, 46-59 → 2, 60-73 → 1, >73 → 0; SpO2 % <94 → 0, 94-96 → 9, 97-98 → 14, >98 → 21; albumin g/dL <2.8 → 0, 2.8-3.3 → 5, 3.4-3.7 → 15, >3.7 → 29; range 0-55; at_or_above_cutpoint iff score ≥30 (derivation sensitivity 83%, specificity 82%)",
"at_or_above_cutpoint": true
},
{
"age": 40,
"score": 55,
"formula": "chosen",
"citation": {
"id": "levine-2020-chosen",
"doi": "10.1007/s11606-020-06353-5",
"pmid": "33274414",
"title": "Derivation of a clinical risk score to predict 14-day occurrence of hypoxia, ICU admission, and death among patients with coronavirus disease 2019",
"source": "J Gen Intern Med. 2021;36(3):730-737",
"authors": "Levine DM, Lipsitz SR, Co Z, Song W, Dykes PC, Samal L"
},
"cutpoint": 30,
"max_score": 55,
"components": [
{
"value": 40,
"factor": "age",
"points": 5,
"present": true
},
{
"value": 99,
"factor": "spo2_percent",
"points": 21,
"present": true
},
{
"value": 4,
"factor": "albumin_g_dl",
"points": 29,
"present": true
}
],
"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.",
"albumin_g_dl": 4,
"spo2_percent": 99,
"formula_expression": "CHOSEN = age_points + spo2_points + albumin_points; Levine 2020 Figure 2; age 18-45 → 5, 46-59 → 2, 60-73 → 1, >73 → 0; SpO2 % <94 → 0, 94-96 → 9, 97-98 → 14, >98 → 21; albumin g/dL <2.8 → 0, 2.8-3.3 → 5, 3.4-3.7 → 15, >3.7 → 29; range 0-55; at_or_above_cutpoint iff score ≥30 (derivation sensitivity 83%, specificity 82%)",
"at_or_above_cutpoint": true
}
]
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-10-01 22:40 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 chosen on api.magentlab.com", snapshot of 2026-10-01 22:40 UTC. https://tollindex.com/e/api-magentlab-com-api-calc-chosen-dbf731/at/2026-10-01T22-40Z. Accessed [access date].
BibTeX
@misc{toll-e-api-magentlab-com-api-calc-chosen-dbf731-2026-10-01T22-40Z,
author = {TOLL},
title = {calc chosen on api.magentlab.com},
howpublished = {\url{https://tollindex.com/e/api-magentlab-com-api-calc-chosen-dbf731/at/2026-10-01T22-40Z}},
year = {2026},
month = {10},
note = {Pinned view of the snapshot of 2026-10-01 22:40 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.