calc leiden arthritis derived

api.magentlab.comOther derived

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

passlisted in Coinbase#300 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 2026-09-30 22:14 UTC · method · pinnable

Validation state: pass; as of 2026-09-30 05:45 UTC · method · pinnable · sweep daily-2026-09-30
Uptime, 7 / 30 / 90 days: 100% / 100% / 100%; as of 2026-09-30 05:45 UTC · method · pinnable · 4 of 4 in 7d, 4 of 4 in 30d, 4 of 4 in 90d
Calls, trailing 30 days: 1; as of 2026-09-30 22:14 UTC · method · pinnable
Unique payers, trailing 30 days: 1; as of 2026-09-30 22:14 UTC · method · pinnable
Last called: 2026-09-28 14:50 UTC; as of 2026-09-30 22:14 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 2026-09-30 22:14 UTC · method · pinnable · on eip155:8453
Networks: 1; as of 2026-09-30 22:14 UTC · method · pinnable

Counters

7 observations, 2 of them a change, fewer than the 3 a trace needs

How big is this endpoint among the ones like it?

Calls counted in the trailing thirty days across the 3,612 endpoints in Other that carry counters, binned on a logarithmic scale because the range runs over five orders of magnitude. The marked bin is this endpoint, at 1: 1,372 in the category are counted higher and 2,239 lower.

No trace is drawn of this endpoint’s own volume. Its counters have changed 2 times across 7 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.

In words

TOLL first observed it on 2026-09-28.

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

Per call, calc leiden arthritis declares 0.005 USDC on Base.

Requests carry a JSON body with the field items.

calc leiden arthritis answered the sweep of 2026-09-30 with a valid 402, as at every sweep since 2026-09-28.

A response from calc leiden arthritis, as declared, includes path, count and items.

api.magentlab.com lists 844 endpoints; calc leiden arthritis is tied 300th by calls with 544 others.

calc leiden arthritis drew a single call from a single payer in the trailing 30 days.

The last call to calc leiden arthritis came 2 days before the snapshot, 2026-09-28.

Closest in price to calc leiden arthritis within the "other" category: enrich profile at win.oneshotagent.com and ping at www.api-xpay.com.

calc leiden arthritis is priced above 46% of comparable listings in the "other" category.

The wallet paid by calc leiden arthritis is the payee of 844 endpoints on one host.

Seller tags: leiden, undifferentiated-arthritis, rheumatoid and emergency.

The price of calc leiden arthritis is declared by 739 other listings in the "other" category too.

Payment options as declared

the payment options, as of 2026-09-30 22:14 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 2026-09-30 05:45 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
2026-09-30 05:45 UTC	pass	daily-2026-09-30
2026-09-29 18:05 UTC	pass	daily-2026-09-29
2026-09-28 16:52 UTC	pass	daily-2026-09-28
2026-09-28 14:20 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 2026-09-28 14:50 UTC · method · live

The input and output block

{
  "input": {
    "body": {
      "items": [
        {
          "age": 48,
          "sex": "female",
          "crp_mg_l": 60,
          "symmetric": true,
          "anti_ccp_positive": false,
          "upper_extremities": true,
          "tender_joint_count": 8,
          "swollen_joint_count": 8,
          "small_joints_hands_feet": true,
          "morning_stiffness_vas_mm": 50,
          "rheumatoid_factor_positive": false,
          "upper_and_lower_extremities": false
        },
        {
          "age": 48,
          "sex": "female",
          "crp_mg_l": 60,
          "symmetric": true,
          "anti_ccp_positive": false,
          "upper_extremities": true,
          "tender_joint_count": 8,
          "swollen_joint_count": 8,
          "small_joints_hands_feet": true,
          "morning_stiffness_vas_mm": 50,
          "rheumatoid_factor_positive": false,
          "upper_and_lower_extremities": false
        }
      ]
    },
    "type": "http",
    "method": "POST"
  },
  "output": {
    "type": "json",
    "example": {
      "path": "/api/calc/leiden_arthritis",
      "count": 2,
      "items": [
        {
          "score": 7.5,
          "formula": "leiden_arthritis",
          "citation": {
            "id": "van-der-helm-van-mil-2007",
            "doi": "10.1002/art.22380",
            "pmid": "17265478",
            "title": "A prediction rule for disease outcome in patients with recent-onset undifferentiated arthritis: how to guide individual treatment decisions",
            "source": "Arthritis Rheum. 2007;56(2):433-440",
            "authors": "van der Helm-van Mil AH, le Cessie S, van Dongen H, Breedveld FC, Toes RE, Huizinga TW"
          },
          "max_score": 14,
          "components": [
            {
              "value": 48,
              "factor": "age",
              "points": 0.96,
              "present": true
            },
            {
              "value": "female",
              "factor": "female",
              "points": 1,
              "present": true
            },
            {
              "factor": "small_joints_hands_feet",
              "points": 0.5,
              "present": true
            },
            {
              "factor": "symmetric",
              "points": 0.5,
              "present": true
            },
            {
              "factor": "upper_and_lower_extremities",
              "points": 0,
              "present": false
            },
            {
              "factor": "upper_extremities",
              "points": 1,
              "present": true
            },
            {
              "value": 50,
              "factor": "morning_stiffness_vas_mm",
              "points": 1,
              "present": true
            },
            {
              "value": 8,
              "factor": "tender_joint_count",
              "points": 0.5,
              "present": true
            },
            {
              "value": 8,
              "factor": "swollen_joint_count",
              "points": 0.5,
              "present": true
            },
            {
              "value": 60,
              "factor": "crp_mg_l",
              "points": 1.5,
              "present": true
            },
            {
              "factor": "rheumatoid_factor_positive",
              "points": 0,
              "present": false
            },
            {
              "factor": "anti_ccp_positive",
              "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.",
          "leiden_band": "indeterminate",
          "formula_expression": "Leiden UA score (van der Helm-van Mil 2007 Figure 1 / Table 2) = age_years*0.02 + female 1 + small_joints_hands_feet 0.5 + symmetric 0.5 + (upper_and_lower_extremities 1.5 else upper_extremities 1) + morning_stiffness_vas_mm (0–25 → 0; 26–90 → 1; >90 → 2) + tender_joint_count (<4 → 0; 4–10 → 0.5; ≥11 → 1) + swollen_joint_count (<4 → 0; 4–10 → 0.5; ≥11 → 1) + crp_mg_l (0–4 → 0; 5–50 → 0.5; ≥51 → 1.5) + rheumatoid_factor_positive 1 + anti_ccp_positive 2; round to nearest 0.0 or 0.5; ≤6 low, >6 and <8 indeterminate, ≥8 high; max 14; not a diagnosis of RA"
        },
        {
          "score": 7.5,
          "formula": "leiden_arthritis",
          "citation": {
            "id": "van-der-helm-van-mil-2007",
            "doi": "10.1002/art.22380",
            "pmid": "17265478",
            "title": "A prediction rule for disease outcome in patients with recent-onset undifferentiated arthritis: how to guide individual treatment decisions",
            "source": "Arthritis Rheum. 2007;56(2):433-440",
            "authors": "van der Helm-van Mil AH, le Cessie S, van Dongen H, Breedveld FC, Toes RE, Huizinga TW"
          },
          "max_score": 14,
          "components": [
            {
              "value": 48,
              "factor": "age",
              "points": 0.96,
              "present": true
            },
            {
              "value": "female",
              "factor": "female",
              "points": 1,
              "present": true
            },
            {
              "factor": "small_joints_hands_feet",
              "points": 0.5,
              "present": true
            },
            {
              "factor": "symmetric",
              "points": 0.5,
              "present": true
            },
            {
              "factor": "upper_and_lower_extremities",
              "points": 0,
              "present": false
            },
            {
              "factor": "upper_extremities",
              "points": 1,
              "present": true
            },
            {
              "value": 50,
              "factor": "morning_stiffness_vas_mm",
              "points": 1,
              "present": true
            },
            {
              "value": 8,
              "factor": "tender_joint_count",
              "points": 0.5,
              "present": true
            },
            {
              "value": 8,
              "factor": "swollen_joint_count",
              "points": 0.5,
              "present": true
            },
            {
              "value": 60,
              "factor": "crp_mg_l",
              "points": 1.5,
              "present": true
            },
            {
              "factor": "rheumatoid_factor_positive",
              "points": 0,
              "present": false
            },
            {
              "factor": "anti_ccp_positive",
              "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.",
          "leiden_band": "indeterminate",
          "formula_expression": "Leiden UA score (van der Helm-van Mil 2007 Figure 1 / Table 2) = age_years*0.02 + female 1 + small_joints_hands_feet 0.5 + symmetric 0.5 + (upper_and_lower_extremities 1.5 else upper_extremities 1) + morning_stiffness_vas_mm (0–25 → 0; 26–90 → 1; >90 → 2) + tender_joint_count (<4 → 0; 4–10 → 0.5; ≥11 → 1) + swollen_joint_count (<4 → 0; 4–10 → 0.5; ≥11 → 1) + crp_mg_l (0–4 → 0; 5–50 → 0.5; ≥51 → 1.5) + rheumatoid_factor_positive 1 + anti_ccp_positive 2; round to nearest 0.0 or 0.5; ≤6 low, >6 and <8 indeterminate, ≥8 high; max 14; not a diagnosis of RA"
        }
      ]
    }
  }
}

What the listing says

van der Helm-van Mil 2007 Leiden prediction rule for recent-onset undifferentiated arthritis (Figure 1 / Table 2). Age × 0.02, female 1, small joints 0.5, symmetric 0.5, upper 1 or upper-and-lower 1.5, 100-mm morning-stiffness VAS 0/1/2, tender and swollen counts 0/0.5/1, CRP mg/L 0/0.5/1.5, RF 1, anti-CCP 2. Round to nearest 0.0 or 0.5. Bands ≤6 low, >6 and <8 indeterminate, ≥8 high. Not a diagnosis of RA. magent does not examine joints or assay serologies.

the record, 2026-09-28 14:50 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 above0%

of 3,612 that carry counters

cheaper than46%

of 3,618 with a comparable price

3,691 endpoints are in this category. 739 declare exactly this price.

the comparison, 2026-09-30 22:14 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
tech stackagent402.tools0.005 USDCpass
phone intelligencex402.orthogonal.com0.005 USDCpass

Same category, nearest declared price, one per payee wallet (method). the list, 2026-09-30 22:14 UTC · method · live

Elsewhere in the record

Cite this page

The pinned URL below renders this page from the snapshot of 2026-09-30 22:14 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 leiden arthritis on api.magentlab.com", snapshot of 2026-09-30 22:14 UTC. https://tollindex.com/e/api-magentlab-com-api-calc-leiden-arthritis-0cec97/at/2026-09-30T22-14Z. Accessed [access date].

BibTeX

@misc{toll-e-api-magentlab-com-api-calc-leiden-arthritis-0cec97-2026-09-30T22-14Z,
  author = {TOLL},
  title = {calc leiden arthritis on api.magentlab.com},
  howpublished = {\url{https://tollindex.com/e/api-magentlab-com-api-calc-leiden-arthritis-0cec97/at/2026-09-30T22-14Z}},
  year = {2026},
  month = {9},
  note = {Pinned view of the snapshot of 2026-09-30 22:14 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 leiden arthritis, or reply as the named seller