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Caprini Score (VTE Risk, 2005)

Calculate the 2005 Caprini Risk Assessment Model to stratify venous thromboembolism (VTE) risk in surgical patients. ~40 items weighted 1/2/3/5 points: 1 point (age 41-60, minor surgery, BMI >25, swollen legs, varicose veins, pregnancy/postpartum, recurrent miscarriage, OCP/HRT, sepsis <1mo, lung disease/pneumonia <1mo, COPD, acute MI, CHF <1mo, bedridden, medical bed rest, IBD); 2 points (age 61-74, arthroscopic surgery, major open surgery >45min, laparoscopic >45min, malignancy, bed >72h, plaster cast, central line); 3 points (age ≥75, personal/family VTE history, factor V Leiden, prothrombin 20210A, lupus anticoagulant, anticardiolipin, homocysteine, HIT, other thrombophilia); 5 points (stroke <1mo, elective major lower-extremity arthroplasty, hip/pelvis/leg fracture <1mo, acute spinal cord injury <1mo, multiple trauma <1mo). Management tiers: 0 lowest, 1-4 low-moderate (mechanical), 5-6 high (consider LMWH 7-10d), 7-8 high (LMWH 7-10d), ≥9 highest (LMWH 30d). Derived from Caprini 2005. Not medical advice.

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/caprini-score' \
  -H 'Content-Type: application/json' \
  -d '{"age41to60":false,"minorSurgery":false,"bmi25":false,"swollenLegs":false,"varicose":false,"pregnancy":false,"miscarriage":false,"ocp":false,"sepsis":false,"lungDisease":false,"copd":false,"mi":false,"chf":false,"bedridden":false,"medicalBedRest":false,"ibd":false,"age61to74":true,"arthroscopic":false,"majorOpen":true,"laparoscopic":false,"malignancy":true,"bed72h":false,"plasterCast":false,"centralLine":false,"ageGte75":false,"personalVte":true,"familyVte":false,"factorV":false,"prothrombin":false,"lupusAnticoag":false,"anticardiolipin":false,"homocysteine":false,"hit":false,"otherThrombophilia":false,"stroke":false,"electiveArthroplasty":false,"hipFracture":false,"spinalCord":false,"multipleTrauma":false}'

© 2026 Elysia Tools. Developer documentation.

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API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP
POST https://api.elysiatools.com/en/api/tools/caprini-score

Parameters

NameTypeRequiredDescription
age41to60checkboxNo+1.
minorSurgerycheckboxNo+1.
bmi25checkboxNo+1.
swollenLegscheckboxNo+1.
varicosecheckboxNo+1.
pregnancycheckboxNo+1.
miscarriagecheckboxNo+1.
ocpcheckboxNo+1.
sepsischeckboxNo+1.
lungDiseasecheckboxNo+1.
copdcheckboxNo+1.
micheckboxNo+1.
chfcheckboxNo+1.
bedriddencheckboxNo+1.
medicalBedRestcheckboxNo+1.
ibdcheckboxNo+1.
age61to74checkboxNo+2.
arthroscopiccheckboxNo+2.
majorOpencheckboxNo+2.
laparoscopiccheckboxNo+2.
malignancycheckboxNo+2.
bed72hcheckboxNo+2.
plasterCastcheckboxNo+2.
centralLinecheckboxNo+2.
ageGte75checkboxNo+3.
personalVtecheckboxNo+3.
familyVtecheckboxNo+3.
factorVcheckboxNo+3.
prothrombincheckboxNo+3.
lupusAnticoagcheckboxNo+3.
anticardiolipincheckboxNo+3.
homocysteinecheckboxNo+3.
hitcheckboxNo+3.
otherThrombophiliacheckboxNo+3.
strokecheckboxNo+5.
electiveArthroplastycheckboxNo+5.
hipFracturecheckboxNo+5.
spinalCordcheckboxNo+5.
multipleTraumacheckboxNo+5.

Response format

JSON result

JSON
{
  "key": {...},
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json
{
  "mcpServers": {
    "elysiatools-caprini-score": {
      "name": "caprini-score",
      "description": "Calculate the 2005 Caprini Risk Assessment Model to stratify venous thromboembolism (VTE) risk in surgical patients. ~40 items weighted 1/2/3/5 points: 1 point (age 41-60, minor surgery, BMI >25, swollen legs, varicose veins, pregnancy/postpartum, recurrent miscarriage, OCP/HRT, sepsis <1mo, lung disease/pneumonia <1mo, COPD, acute MI, CHF <1mo, bedridden, medical bed rest, IBD); 2 points (age 61-74, arthroscopic surgery, major open surgery >45min, laparoscopic >45min, malignancy, bed >72h, plaster cast, central line); 3 points (age ≥75, personal/family VTE history, factor V Leiden, prothrombin 20210A, lupus anticoagulant, anticardiolipin, homocysteine, HIT, other thrombophilia); 5 points (stroke <1mo, elective major lower-extremity arthroplasty, hip/pelvis/leg fracture <1mo, acute spinal cord injury <1mo, multiple trauma <1mo). Management tiers: 0 lowest, 1-4 low-moderate (mechanical), 5-6 high (consider LMWH 7-10d), 7-8 high (LMWH 7-10d), ≥9 highest (LMWH 30d). Derived from Caprini 2005. Not medical advice.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=caprini-score",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call
{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "caprini-score",
    "arguments": {
  "age41to60": false,
  "minorSurgery": false,
  "bmi25": false,
  "swollenLegs": false,
  "varicose": false,
  "pregnancy": false,
  "miscarriage": false,
  "ocp": false,
  "sepsis": false,
  "lungDisease": false,
  "copd": false,
  "mi": false,
  "chf": false,
  "bedridden": false,
  "medicalBedRest": false,
  "ibd": false,
  "age61to74": true,
  "arthroscopic": false,
  "majorOpen": true,
  "laparoscopic": false,
  "malignancy": true,
  "bed72h": false,
  "plasterCast": false,
  "centralLine": false,
  "ageGte75": false,
  "personalVte": true,
  "familyVte": false,
  "factorV": false,
  "prothrombin": false,
  "lupusAnticoag": false,
  "anticardiolipin": false,
  "homocysteine": false,
  "hit": false,
  "otherThrombophilia": false,
  "stroke": false,
  "electiveArthroplasty": false,
  "hipFracture": false,
  "spinalCord": false,
  "multipleTrauma": false
}
  }
}
Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

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