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RIETE Score Calculator (Ruiz-Giménez 2008)
x402
RIETE Score Calculator (Ruiz-Giménez 2008) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Computes the RIETE score for 3-month major bleeding risk after acute VTE, returning a numeric score and low/intermediate/high risk category.
Price / call$0.005
Success—
StatusUnknown
How this service works
Ruiz-Giménez 2008 RIETE score for 3-month major bleeding after documented acute VTE. Six caller-assigned flags: recent major bleeding (2), creatinine >1.2 mg/dL (1.5), anemia (1.5), cancer (1), clinically overt PE (1), age >75 (1); max 8. Low 0 (0.3%), intermediate 1–4 (2.6%), high >4 (7.3%) in derivation; validation 0.1%/2.8%/6.2%. Not a VTE diagnosis or bleed-treatment protocol. magent does not assay hemoglobin or creatinine.
Output
Returns a numeric RIETE score (0–8) computed by summing caller-supplied boolean flags weighted by their published point values, along with a risk category (low: 0 points, ~0.3% bleeding; intermediate: 1–4 points, ~2.6%; high: >4 points, ~7.3%) derived from the Ruiz-Giménez 2008 derivation cohort with validation cohort rates also cited.
Example use cases
Bleeding risk before anticoagulation in elderly cancer patient
“Run the RIETE score for a VTE patient: they have cancer, are over 75 years old, and are anemic — no recent major bleeding, creatinine is normal, and no overt PE. What's their 3-month major bleeding risk category?”
Post-PE discharge risk stratification
“Score this patient using the RIETE model: they just had a clinically overt pulmonary embolism, creatinine is above 1.2 mg/dL, and they are anemic. No cancer, no recent bleeding, and they are under 75. What risk tier do they fall in?”
Low-risk VTE patient confirmation
“Can you compute the RIETE bleeding score for a VTE patient with none of the risk flags — no recent major bleeding, normal creatinine, no anemia, no cancer, no overt PE, and under 75? I want to confirm they're in the low-risk category.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/rieteWhen to prefer
Use this endpoint when you need a validated, published bleeding risk score specifically for patients with documented acute VTE who are candidates for anticoagulation, following the Ruiz-Giménez 2008 RIETE model. Prefer RIETE over HAS-BLED or ATRIA when the clinical context is VTE (DVT or PE) rather than atrial fibrillation. This endpoint is ideal when all six clinical flags have already been determined by a clinician or upstream data extraction step, as this service only performs the arithmetic scoring.
Side effects
- Missing required boolean parameters returns a validation error
- Non-boolean values for flag fields cause schema rejection
- All flags false still returns a valid score of 0 (low risk — not an error)
- API unavailability returns HTTP 5xx; retry logic recommended
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/riete",
"count": 2,
"items": [
{
"score": 0,
"formula": "riete",
"citation": {
"id": "ruiz-gimenez-2008",
"doi": "10.1160/TH08-03-0193",
"pmid": "18612548",
"title": "Predictive variables for major bleeding events in patients presenting with documented acute venous thromboembolism. Findings from the RIETE Registry",
"source": "Thromb Haemost. 2008;100(1):26-31",
"authors": "Ruiz-Giménez N, Suárez C, González R, Nieto JA, Todolí JA, Samperiz AL, Monreal M; RIETE Investigators"
},
"max_score": 8,
"components": [
{
"factor": "recent_major_bleeding",
"points": 0,
"present": false
},
{
"factor": "creatinine_gt_1_2",
"points": 0,
"present": false
},
{
"factor": "anemia",
"points": 0,
"present": false
},
{
"factor": "cancer",
"points": 0,
"present": false
},
{
"factor": "clinically_overt_pe",
"points": 0,
"present": false
},
{
"factor": "age_gt_75",
"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.",
"riete_band": "low",
"formula_expression": "RIETE = recent_major_bleeding 2.0 + creatinine_gt_1_2 1.5 + anemia 1.5 + cancer 1.0 + clinically_overt_pe 1.0 + age_gt_75 1.0; Ruiz-Giménez 2008; max 8; low 0, intermediate 1-4, high >4"
},
{
"score": 0,
"formula": "riete",
"citation": {
"id": "ruiz-gimenez-2008",
"doi": "10.1160/TH08-03-0193",
"pmid": "18612548",
"title": "Predictive variables for major bleeding events in patients presenting with documented acute venous thromboembolism. Findings from the RIETE Registry",
"source": "Thromb Haemost. 2008;100(1):26-31",
"authors": "Ruiz-Giménez N, Suárez C, González R, Nieto JA, Todolí JA, Samperiz AL, Monreal M; RIETE Investigators"
},
"max_score": 8,
"components": [
{
"factor": "recent_major_bleeding",
"points": 0,
"present": false
},
{
"factor": "creatinine_gt_1_2",
"points": 0,
"present": false
},
{
"factor": "anemia",
"points": 0,
"present": false
},
{
"factor": "cancer",
"points": 0,
"present": false
},
{
"factor": "clinically_overt_pe",
"points": 0,
"present": false
},
{
"factor": "age_gt_75",
"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.",
"riete_band": "low",
"formula_expression": "RIETE = recent_major_bleeding 2.0 + creatinine_gt_1_2 1.5 + anemia 1.5 + cancer 1.0 + clinically_overt_pe 1.0 + age_gt_75 1.0; Ruiz-Giménez 2008; max 8; low 0, intermediate 1-4, high >4"
}
]
}
}Tags
x402
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