calc sickle rbc exchange derived

api.magentlab.comOther derived

POST https://api.magentlab.com/api/calc/sickle_rbc_exchange

passlisted in Coinbase#3 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 2026-10-11 21:56 UTC · method · pinnable

Validation state: pass; as of 2026-10-11 11:00 UTC · method · pinnable · sweep daily-2026-10-11
Uptime, 7 / 30 / 90 days: 100% / 100% / 100%; as of 2026-10-11 11:00 UTC · method · pinnable · 7 of 7 in 7d, 14 of 14 in 30d, 14 of 14 in 90d
Calls, trailing 30 days: 4; as of 2026-10-11 21:56 UTC · method · pinnable
Unique payers, trailing 30 days: 3; as of 2026-10-11 21:56 UTC · method · pinnable
Last called: 2026-10-08 06:15 UTC; as of 2026-10-11 21:56 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 2026-10-11 21:56 UTC · method · pinnable · on eip155:8453
Networks: 1; as of 2026-10-11 21:56 UTC · method · pinnable

Counters

39 observations, 5 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

Among the 844 endpoints on api.magentlab.com, calc sickle rbc exchange is tied 3rd by calls with 174 others.

Its declared inputs are a JSON body with the field items.

calc sickle rbc exchange returns json; the example shows path, count and items.

The registry's counters give calc sickle rbc exchange 4 calls and 3 unique payers over 30 days.

The most recent call was 4 days before the snapshot.

calc sickle rbc exchange is priced at 0.005 USDC on Base.

At api.magentlab.com, calc sickle rbc exchange takes POST requests, is listed in the Coinbase registry, and falls under the "other" category by TOLL's rules.

calc sickle rbc exchange answered the sweep of 2026-10-11 with a valid 402, as at every sweep since 2026-09-28.

Closest in price to calc sickle rbc exchange within the "other" category: aviation airport status at api.x402node.dev and eth at agent.pocket.network.

calc sickle rbc exchange is priced above 33% of comparable listings in the "other" category.

calc sickle rbc exchange out-counts 75% of the 3,545 endpoints in the "other" category that carry counters.

The wallet paid by calc sickle rbc exchange is the payee of 844 endpoints on one host.

The seller's own tags are rbc-exchange, sickle-cell, hematology and nadler.

The price of calc sickle rbc exchange is declared by 769 other listings in the "other" category too.

Payment options as declared

the payment options, as of 2026-10-11 21:56 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 2026-10-11 11:00 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
2026-10-11 11:00 UTC	pass	daily-2026-10-11
2026-10-10 19:10 UTC	pass	daily-2026-10-10
2026-10-09 12:48 UTC	pass	daily-2026-10-09
2026-10-08 14:40 UTC	pass	daily-2026-10-08
2026-10-07 13:51 UTC	pass	daily-2026-10-07
2026-10-06 14:21 UTC	pass	daily-2026-10-06
2026-10-05 12:32 UTC	pass	daily-2026-10-05
2026-10-04 15:02 UTC	pass	daily-2026-10-04
2026-10-03 08:10 UTC	pass	daily-2026-10-03
2026-10-02 17:17 UTC	pass	daily-2026-10-02
2026-10-01 09:56 UTC	pass	daily-2026-10-01
2026-09-30 09:22 UTC	pass	daily-2026-09-30
2026-09-29 21:28 UTC	pass	daily-2026-09-29
2026-09-28 16:50 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 2026-10-08 06:15 UTC · method · live

The input and output block

{
  "input": {
    "body": {
      "items": [
        {
          "sex": "male",
          "height_cm": 170,
          "height_in": 66.92913385826772,
          "weight_kg": 70,
          "weight_lb": 154.32,
          "unit_volume_ml": 350,
          "hematocrit_percent": 30,
          "target_hbs_percent": 30,
          "initial_hbs_percent": 90,
          "replacement_hct_percent": 60
        },
        {
          "sex": "male",
          "height_cm": 170,
          "height_in": 66.92913385826772,
          "weight_kg": 70,
          "weight_lb": 154.32,
          "unit_volume_ml": 350,
          "hematocrit_percent": 30,
          "target_hbs_percent": 30,
          "initial_hbs_percent": 90,
          "replacement_hct_percent": 60
        }
      ]
    },
    "type": "http",
    "method": "POST"
  },
  "output": {
    "type": "json",
    "example": {
      "path": "/api/calc/sickle_rbc_exchange",
      "count": 2,
      "items": [
        {
          "fcr": 0.3333,
          "sex": "male",
          "formula": "nadler_exponential_washout",
          "citation": {
            "id": "nadler-1962",
            "pmid": "21936146",
            "title": "Prediction of blood volume in normal human adults",
            "source": "Surgery. 1962;51(2):224-232",
            "authors": "Nadler SB, Hidalgo JH, Bloch T"
          },
          "height_cm": 170,
          "weight_kg": 70,
          "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.",
          "blood_volume_l": 4.66,
          "blood_volume_ml": 4660,
          "formula_expression": "TBV_L male = 0.3669 * H^3 + 0.03219 * W + 0.6041; female = 0.3561 * H^3 + 0.03308 * W + 0.1833 (H meters, W kg). patient_rbc_volume_ml = TBV_mL * hematocrit_percent/100. FCR = target_hbs_percent/initial_hbs_percent. X = -ln(FCR). replacement_prbc_ml = patient_rbc_volume_ml * X / (replacement_hct_percent/100)",
          "hematocrit_percent": 30,
          "target_hbs_percent": 30,
          "initial_hbs_percent": 90,
          "replacement_prbc_ml": 2559.8,
          "patient_rbc_volume_ml": 1398,
          "rbc_volumes_exchanged": 1.0986,
          "replacement_hct_percent": 60
        },
        {
          "fcr": 0.3333,
          "sex": "male",
          "formula": "nadler_exponential_washout",
          "citation": {
            "id": "nadler-1962",
            "pmid": "21936146",
            "title": "Prediction of blood volume in normal human adults",
            "source": "Surgery. 1962;51(2):224-232",
            "authors": "Nadler SB, Hidalgo JH, Bloch T"
          },
          "height_cm": 170,
          "weight_kg": 70,
          "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.",
          "blood_volume_l": 4.66,
          "blood_volume_ml": 4660,
          "formula_expression": "TBV_L male = 0.3669 * H^3 + 0.03219 * W + 0.6041; female = 0.3561 * H^3 + 0.03308 * W + 0.1833 (H meters, W kg). patient_rbc_volume_ml = TBV_mL * hematocrit_percent/100. FCR = target_hbs_percent/initial_hbs_percent. X = -ln(FCR). replacement_prbc_ml = patient_rbc_volume_ml * X / (replacement_hct_percent/100)",
          "hematocrit_percent": 30,
          "target_hbs_percent": 30,
          "initial_hbs_percent": 90,
          "replacement_prbc_ml": 2559.8,
          "patient_rbc_volume_ml": 1398,
          "rbc_volumes_exchanged": 1.0986,
          "replacement_hct_percent": 60
        }
      ]
    }
  }
}

What the listing says

Nadler 1962 adult blood volume plus exponential remaining-fraction washout (Y/Y0 = e^(−X)) for sickle RBC exchange replacement pRBC volume. FCR = target_hbs / initial_hbs; X = −ln(FCR). Caller supplies hematocrits and HbS percents. Optional approx units if unit_volume_ml is sent. Deterministic published arithmetic. Not an apheresis order or medical device.

the record, 2026-10-08 06:15 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 above75%

of 3,545 that carry counters

cheaper than33%

of 3,558 with a comparable price

3,631 endpoints are in this category. 769 declare exactly this price.

the comparison, 2026-10-11 21:56 UTC · method · live

Nearest on price

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pingwww.api-xpay.com0.005 USDCpass
aviation airport statusapi.x402node.dev0.005 USDCpass
ethagent.pocket.network0.005 USDCpass
fetchnanoparse.app0.005 USDCpass

Same category, nearest declared price, one per payee wallet (method). the list, 2026-10-11 21:56 UTC · method · live

Elsewhere in the record

Cite this page

The pinned URL below renders this page from the snapshot of 2026-10-11 21:56 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 sickle rbc exchange on api.magentlab.com", snapshot of 2026-10-11 21:56 UTC. https://tollindex.com/e/api-magentlab-com-api-calc-sickle-rbc-exchange-eeb65b/at/2026-10-11T21-56Z. Accessed [access date].

BibTeX

@misc{toll-e-api-magentlab-com-api-calc-sickle-rbc-exchange-eeb65b-2026-10-11T21-56Z,
  author = {TOLL},
  title = {calc sickle rbc exchange on api.magentlab.com},
  howpublished = {\url{https://tollindex.com/e/api-magentlab-com-api-calc-sickle-rbc-exchange-eeb65b/at/2026-10-11T21-56Z}},
  year = {2026},
  month = {10},
  note = {Pinned view of the snapshot of 2026-10-11 21:56 UTC. Accessed [access date].}
}

Reports and replies about this endpoint

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