calc 4c derived

api.magentlab.comOther derived

POST https://api.magentlab.com/api/calc/4c

passlisted in Coinbase#753 by calls of 844 on this host

0.005 USDC

per call, as the listing declares it on eip155:8453

Compare with another Every figure as JSON Cite this page

the price, as of 2026-10-07 13:20 UTC · method · pinnable

Validation state: pass; as of 2026-10-07 12:50 UTC · method · pinnable · sweep daily-2026-10-07
Uptime, 7 / 30 / 90 days: 100% / 100% / 100%; as of 2026-10-07 12:50 UTC · method · pinnable · 7 of 7 in 7d, 10 of 10 in 30d, 10 of 10 in 90d
Calls, trailing 30 days: 2; as of 2026-10-07 13:20 UTC · method · pinnable
Unique payers, trailing 30 days: 1; as of 2026-10-07 13:20 UTC · method · pinnable
Last called: 2026-10-05 14:24 UTC; as of 2026-10-07 13:20 UTC · method · pinnable
First observed by TOLLderived: 2026-09-28; as of 2026-09-28 13:51 UTC · method · pinnable · observation began 10 September 2026; listings that predate it show that date
Pricederived: 0.005 USDC; as of 2026-10-07 13:20 UTC · method · pinnable · on eip155:8453
Networks: 1; as of 2026-10-07 13:20 UTC · method · pinnable

Counters

26 observations, 3 of them a change

How has the volume on this endpoint moved?

Calls counted in the trailing 30 days on this endpoint, at every snapshot since 2026-09-28. Each point is a trailing-30-day sum as the registry published it, not a daily rate. The axis is truncated to the range of the data with a break at its foot.

In words

Of api.magentlab.com's 844 listings, calc 4c ranks tied 753rd by calls with 91 others.

Requests carry a JSON body with the field items.

A response from calc 4c, as declared, includes path, count and items.

Over 30 days: 2 calls, one payer.

The last call to calc 4c came 2 days before the snapshot, 2026-10-05.

It is priced at 0.005 USDC on Base.

calc 4c, a POST endpoint on api.magentlab.com, appears in the Coinbase registry; TOLL's taxonomy puts it in the "other" category.

calc 4c answered the sweep of 2026-10-07 with a valid 402, as at every sweep since 2026-09-28.

Closest in price to calc 4c within the "other" category: solana at agent.pocket.network and tech stack at agent402.tools.

calc 4c is priced above 33% of comparable listings in the "other" category.

The wallet paid by calc 4c is the payee of 844 endpoints on one host.

The seller's tags on calc 4c are 4c, covid-19, mortality and isaric.

720 other listings in the "other" category declare exactly the same price.

Payment options as declared

the payment options, as of 2026-10-07 13:20 UTC · method · pinnable

Every payment option declared on this listing
registry	network	asset	amount	scheme	pay to
Coinbase	eip155:8453	USDC	0.005 USDC	exact	0x836Be2…c19Ee2

Preflight checks at the last sweep

the checks, as of 2026-10-07 12:50 UTC · method · pinnableendpoint answered HTTP 402

No named check failed.

Validation history, 90 days

Every sweep that observed this endpoint, newest first.

Validation observations over the last 90 days
observed, UTC	state	sweep
2026-10-07 12:50 UTC	pass	daily-2026-10-07
2026-10-06 13:30 UTC	pass	daily-2026-10-06
2026-10-05 11:51 UTC	pass	daily-2026-10-05
2026-10-04 14:29 UTC	pass	daily-2026-10-04
2026-10-03 07:46 UTC	pass	daily-2026-10-03
2026-10-02 16:53 UTC	pass	daily-2026-10-02
2026-10-01 09:35 UTC	pass	daily-2026-10-01
2026-09-30 09:03 UTC	pass	daily-2026-09-30
2026-09-29 21:08 UTC	pass	daily-2026-09-29
2026-09-28 16:49 UTC	pass	new-after-daily-2026-09-28

Registry presence

Presence in a registry, not liveness of the service (method). Newest first.

2026-09-28 13:51 UTClisted in Coinbase

Declared input and output, as listed

From the registry record, not validated by TOLL.the declared schema, as of 2026-10-05 14:24 UTC · method · live

The input and output block

{
  "input": {
    "body": {
      "items": [
        {
          "age": 40,
          "gcs": 15,
          "sex": "female",
          "crp_mg_l": 10,
          "bun_mg_dl": 14,
          "urea_mmol_l": 5,
          "spo2_percent": 98,
          "respiratory_rate": 16,
          "comorbidity_count": 0
        },
        {
          "age": 40,
          "gcs": 15,
          "sex": "female",
          "crp_mg_l": 10,
          "bun_mg_dl": 14,
          "urea_mmol_l": 5,
          "spo2_percent": 98,
          "respiratory_rate": 16,
          "comorbidity_count": 0
        }
      ]
    },
    "type": "http",
    "method": "POST"
  },
  "output": {
    "type": "json",
    "example": {
      "path": "/api/calc/4c",
      "count": 2,
      "items": [
        {
          "gcs": 15,
          "sex": "female",
          "score": 0,
          "formula": "4c",
          "citation": {
            "id": "knight-2020",
            "doi": "10.1136/bmj.m3339",
            "pmid": "32907855",
            "title": "Risk stratification of patients admitted to hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: development and validation of the 4C Mortality Score",
            "source": "BMJ. 2020;370:m3339",
            "authors": "Knight SR, Ho A, Pius R, Buchan I, Carson G, Drake TM, Dunning J, Fairfield CJ, Gamble C, Green CA, Gupta R, Halpin S, Hardwick HE, Holden KA, Horby PW, Jackson C, Mclean KA, Merson L, Nguyen-Van-Tam JS, Norman L, Noursadeghi M, Olliaro PL, Pritchard MG, Russell CD, Shaw CA, Sheikh A, Solomon T, Sudlow C, Swann OV, Turtle LCW, Openshaw PJM, Baillie JK, Semple MG, Docherty AB, Harrison EM; ISARIC4C investigators"
          },
          "crp_mg_l": 10,
          "age_years": 40,
          "max_score": 21,
          "components": [
            {
              "value": 40,
              "factor": "age",
              "points": 0,
              "present": false
            },
            {
              "value": "female",
              "factor": "sex",
              "points": 0,
              "present": false
            },
            {
              "value": 0,
              "factor": "comorbidity_count",
              "points": 0,
              "present": false
            },
            {
              "value": 16,
              "factor": "respiratory_rate",
              "points": 0,
              "present": false
            },
            {
              "value": 98,
              "factor": "spo2_percent",
              "points": 0,
              "present": false
            },
            {
              "value": 15,
              "factor": "gcs",
              "points": 0,
              "present": false
            },
            {
              "value": 5,
              "factor": "urea",
              "points": 0,
              "present": false
            },
            {
              "value": 10,
              "factor": "crp_mg_l",
              "points": 0,
              "present": false
            }
          ],
          "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.",
          "four_c_band": "low",
          "urea_mmol_l": 5,
          "spo2_percent": 98,
          "respiratory_rate": 16,
          "comorbidity_count": 0,
          "formula_expression": "4C = age (<50 0, 50–59 2, 60–69 4, 70–79 6, ≥80 7) + sex (female 0, male 1) + comorbidity_count (0→0, 1→1, ≥2→2) + respiratory_rate (<20 0, 20–29 1, ≥30 2) + spo2_percent (≥92 0, <92 2) + gcs (15 0, <15 2) + urea_mmol_l (<7 0, 7–14 1, >14 3) + crp_mg_l (<50 0, 50–99 1, ≥100 2); Knight 2020 Table 2; max 21; Table 5 bands low 0–3, intermediate 4–8, high 9–14, very_high ≥15"
        },
        {
          "gcs": 15,
          "sex": "female",
          "score": 0,
          "formula": "4c",
          "citation": {
            "id": "knight-2020",
            "doi": "10.1136/bmj.m3339",
            "pmid": "32907855",
            "title": "Risk stratification of patients admitted to hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: development and validation of the 4C Mortality Score",
            "source": "BMJ. 2020;370:m3339",
            "authors": "Knight SR, Ho A, Pius R, Buchan I, Carson G, Drake TM, Dunning J, Fairfield CJ, Gamble C, Green CA, Gupta R, Halpin S, Hardwick HE, Holden KA, Horby PW, Jackson C, Mclean KA, Merson L, Nguyen-Van-Tam JS, Norman L, Noursadeghi M, Olliaro PL, Pritchard MG, Russell CD, Shaw CA, Sheikh A, Solomon T, Sudlow C, Swann OV, Turtle LCW, Openshaw PJM, Baillie JK, Semple MG, Docherty AB, Harrison EM; ISARIC4C investigators"
          },
          "crp_mg_l": 10,
          "age_years": 40,
          "max_score": 21,
          "components": [
            {
              "value": 40,
              "factor": "age",
              "points": 0,
              "present": false
            },
            {
              "value": "female",
              "factor": "sex",
              "points": 0,
              "present": false
            },
            {
              "value": 0,
              "factor": "comorbidity_count",
              "points": 0,
              "present": false
            },
            {
              "value": 16,
              "factor": "respiratory_rate",
              "points": 0,
              "present": false
            },
            {
              "value": 98,
              "factor": "spo2_percent",
              "points": 0,
              "present": false
            },
            {
              "value": 15,
              "factor": "gcs",
              "points": 0,
              "present": false
            },
            {
              "value": 5,
              "factor": "urea",
              "points": 0,
              "present": false
            },
            {
              "value": 10,
              "factor": "crp_mg_l",
              "points": 0,
              "present": false
            }
          ],
          "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.",
          "four_c_band": "low",
          "urea_mmol_l": 5,
          "spo2_percent": 98,
          "respiratory_rate": 16,
          "comorbidity_count": 0,
          "formula_expression": "4C = age (<50 0, 50–59 2, 60–69 4, 70–79 6, ≥80 7) + sex (female 0, male 1) + comorbidity_count (0→0, 1→1, ≥2→2) + respiratory_rate (<20 0, 20–29 1, ≥30 2) + spo2_percent (≥92 0, <92 2) + gcs (15 0, <15 2) + urea_mmol_l (<7 0, 7–14 1, >14 3) + crp_mg_l (<50 0, 50–99 1, ≥100 2); Knight 2020 Table 2; max 21; Table 5 bands low 0–3, intermediate 4–8, high 9–14, very_high ≥15"
        }
      ]
    }
  }
}

What the listing says

Knight 2020 ISARIC 4C Mortality Score: age (<50→0, 50–59→2, 60–69→4, 70–79→6, ≥80→7) + male 1 + comorbidity_count (0/1/≥2 → 0/1/2; caller-assigned Charlson-plus-obesity count) + RR (<20→0, 20–29→1, ≥30→2) + room-air SpO2 (<92→2) + GCS (<15→2) + urea (<7→0, 7–14→1, >14→3 mmol/L; or BUN/2.8) + CRP (<50→0, 50–99→1, ≥100→2). Max 21. Table 5: low 0–3, intermediate 4–8, high 9–14, very high ≥15. Not a COVID-19 diagnosis or treatment order.

the record, 2026-10-05 14:24 UTC · method · pinnable

As declared

POST
eip155:8453
USDC
exact

Every tag is a field on the listing, not a keyword TOLL assigned.

Who is paid

0x836Be2…c19Ee2

Takes payment for 844 endpoints on 1 host.

Among Other

counted above26%

of 3,245 that carry counters

cheaper than33%

of 3,245 with a comparable price

3,318 endpoints are in this category. 720 declare exactly this price.

the comparison, 2026-10-07 13:20 UTC · method · live

Nearest on price

enrich profilewin.oneshotagent.com0.005 USDCpass
pingwww.api-xpay.com0.005 USDCpass
aviation airport statusapi.x402node.dev0.005 USDCpass
solanaagent.pocket.network0.005 USDCpass
tech stackagent402.tools0.005 USDCpass

Same category, nearest declared price, one per payee wallet (method). the list, 2026-10-07 13:20 UTC · method · live

Elsewhere in the record

Cite this page

The pinned URL below renders this page from the snapshot of 2026-10-07 13:20 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 4c on api.magentlab.com", snapshot of 2026-10-07 13:20 UTC. https://tollindex.com/e/api-magentlab-com-api-calc-4c-d808da/at/2026-10-07T13-20Z. Accessed [access date].

BibTeX

@misc{toll-e-api-magentlab-com-api-calc-4c-d808da-2026-10-07T13-20Z,
  author = {TOLL},
  title = {calc 4c on api.magentlab.com},
  howpublished = {\url{https://tollindex.com/e/api-magentlab-com-api-calc-4c-d808da/at/2026-10-07T13-20Z}},
  year = {2026},
  month = {10},
  note = {Pinned view of the snapshot of 2026-10-07 13:20 UTC. Accessed [access date].}
}

Reports and replies about this endpoint

None yet. Anything submitted through the form below is published here with its outcome.

Report an error about calc 4c, or reply as the named seller