Hematology · LIVE

Modified Glasgow Prognostic Score (mGPS)

mGPS

Apply the McMillan 2007 modified Glasgow Prognostic Score (mGPS) from caller-supplied CRP in mg/L and albumin.

LIVE $0.005 USDC GET /api/calc/mgps

Markdown: /docs/mgps.md · Canonical: https://magentlab.com/docs/mgps

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Apply the McMillan 2007 modified Glasgow Prognostic Score (mGPS) from caller-supplied CRP in mg/L and albumin.

When to use

When an agent has CRP in mg/L and albumin and needs the published McMillan 2007 modified GPS (0–2), not original GPS, not hs-mGPS, and not a cancer diagnosis or treatment order.

When not to use

Not a medical device. magent does not examine the patient and does not assay CRP or albumin.
This is McMillan 2007 modified GPS only. Isolated hypoalbuminaemia scores 0. It is not original GPS (which scored hypoalbuminaemia alone as 1) and not hs-mGPS.
Not a cancer diagnosis or treatment order. Does not return survival months or percents.

Formula

mGPS 0: CRP ≤ 10 mg/L (albumin ignored); mGPS 1: CRP > 10 mg/L AND albumin ≥ 35 g/L; mGPS 2: CRP > 10 mg/L AND albumin < 35 g/L (McMillan 2007 modified GPS)

Citation

Title: Evaluation of an inflammation-based prognostic score (GPS) in patients undergoing resection for colon and rectal cancer
Authors: McMillan DC, Crozier JEM, Canna K, Angerson WJ, McArdle CS
Source: Int J Colorectal Dis. 2007;22(8):881-886
DOI: 10.1007/s00384-006-0259-6

Worked example

CRP 5 mg/L, albumin 40 g/L

Given: albumin_g_l=40crp_mg_l=5

CRP 5 mg/L is ≤ 10, so albumin is ignored
mGPS 0

CRP 20 mg/L, albumin 30 g/L

Given: albumin_g_l=30crp_mg_l=20

CRP 20 mg/L is > 10 and albumin 30 g/L is < 35
mGPS 2

Also searched as

mGPS
modified GPS
modified Glasgow Prognostic Score
McMillan GPS
McMillan 2007 mGPS
inflammation-based prognostic score
CRP albumin GPS
colon rectal GPS

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/mgps?crp_mg_l=5&albumin_g_l=40

Full URL: https://api.magentlab.com/api/calc/mgps?crp_mg_l=5&albumin_g_l=40

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/mgps?crp_mg_l=5&albumin_g_l=40"

Parameters

Name	Type	Required	Description
`crp_mg_l`	number	required	C-reactive protein in mg/L (0-500), not mg/dL. McMillan 2007 elevated CRP is >10 mg/L. CRP = 10 is not elevated and scores mGPS 0 regardless of albumin. magent does not assay CRP.
`albumin_g_l`	number	optional	Serum albumin in g/L (10-60). Provide this or albumin_g_dl, not both. McMillan 2007 hypoalbuminaemia is <35 g/L (35 is not low). Ignored when CRP ≤ 10 mg/L. magent does not assay albumin.
`albumin_g_dl`	number	optional	Serum albumin in g/dL (1-6). Converted as g/L = g/dL × 10. Provide this or albumin_g_l, not both.

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/mgps Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

1 to 25 items. Each item uses the same keys as the GET query parameters.
POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "albumin_g_l": "40",
      "crp_mg_l": "5"
    },
    {
      "albumin_g_l": "40",
      "crp_mg_l": "5"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/mgps",
  "items": [
    {
      "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.",
      "citation": {
        "authors": "McMillan DC, Crozier JEM, Canna K, Angerson WJ, McArdle CS",
        "doi": "10.1007/s00384-006-0259-6",
        "id": "mcmillan-2007",
        "pmid": "17245566",
        "source": "Int J Colorectal Dis. 2007;22(8):881-886",
        "title": "Evaluation of an inflammation-based prognostic score (GPS) in patients undergoing resection for colon and rectal cancer"
      },
      "formula": "mgps",
      "formula_expression": "mGPS 0: CRP ≤ 10 mg/L (albumin ignored); mGPS 1: CRP > 10 mg/L AND albumin ≥ 35 g/L; mGPS 2: CRP > 10 mg/L AND albumin < 35 g/L (McMillan 2007 modified GPS)",
      "albumin_g_l": 40.0,
      "crp_mg_l": 5.0,
      "mgps": 0
    },
    {
      "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.",
      "citation": {
        "authors": "McMillan DC, Crozier JEM, Canna K, Angerson WJ, McArdle CS",
        "doi": "10.1007/s00384-006-0259-6",
        "id": "mcmillan-2007",
        "pmid": "17245566",
        "source": "Int J Colorectal Dis. 2007;22(8):881-886",
        "title": "Evaluation of an inflammation-based prognostic score (GPS) in patients undergoing resection for colon and rectal cancer"
      },
      "formula": "mgps",
      "formula_expression": "mGPS 0: CRP ≤ 10 mg/L (albumin ignored); mGPS 1: CRP > 10 mg/L AND albumin ≥ 35 g/L; mGPS 2: CRP > 10 mg/L AND albumin < 35 g/L (McMillan 2007 modified GPS)",
      "albumin_g_l": 40.0,
      "crp_mg_l": 5.0,
      "mgps": 0
    }
  ]
}

Response

Field	Type	Description
`formula`	string	mgps
`formula_expression`	string	McMillan 2007 modified GPS 0 / 1 / 2 rules in paper units (mg/L and g/L)
`crp_mg_l`	number	C-reactive protein used in mg/L
`albumin_g_l`	number	Serum albumin used in g/L (after g/dL conversion when supplied)
`mgps`	integer	0, 1, or 2 (McMillan 2007 modified GPS). Isolated hypoalbuminaemia is 0. Not original GPS.
`citation`	object	McMillan 2007 Int J Colorectal Dis citation
`disclaimer`	string	Not-a-device notice

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "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.",
  "citation": {
    "authors": "McMillan DC, Crozier JEM, Canna K, Angerson WJ, McArdle CS",
    "doi": "10.1007/s00384-006-0259-6",
    "id": "mcmillan-2007",
    "pmid": "17245566",
    "source": "Int J Colorectal Dis. 2007;22(8):881-886",
    "title": "Evaluation of an inflammation-based prognostic score (GPS) in patients undergoing resection for colon and rectal cancer"
  },
  "formula": "mgps",
  "formula_expression": "mGPS 0: CRP ≤ 10 mg/L (albumin ignored); mGPS 1: CRP > 10 mg/L AND albumin ≥ 35 g/L; mGPS 2: CRP > 10 mg/L AND albumin < 35 g/L (McMillan 2007 modified GPS)",
  "albumin_g_l": 40.0,
  "crp_mg_l": 5.0,
  "mgps": 0
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP	Code	When
400	`invalid_crp`	crp_mg_l must be a number from 0 to 500. Returned before settlement; you are not charged.
400	`invalid_albumin`	albumin_g_dl (1-6) or albumin_g_l (10-60) is required Returned before settlement; you are not charged.
400	`invalid_items`	POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400	`invalid_item_count`	items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400	`invalid_item`	each items entry must be a JSON object Returned before settlement; you are not charged.

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Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged.
exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
Execution is timeout-bounded and concurrency-capped.
Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.