WEDGE

HAS-BLED

Deterministic bleeding-risk score from discrete flags. Chest 2010 citation.

WEDGE $0.005 USDC GET /api/calc/has_bled

When to use

HAS-BLED score from discrete clinical flags. Use for bleeding-risk arithmetic in atrial fibrillation. Deterministic published score with citation.

Try

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

/api/calc/has_bled?age=78&hypertension=true&abnormal_renal=false&abnormal_liver=false&stroke=false&bleeding=false&labile_inr=false&drugs=false&alcohol=false

Full URL: https://api.magentlab.com/api/calc/has_bled?age=78&hypertension=true&abnormal_renal=false&abnormal_liver=false&stroke=false&bleeding=false&labile_inr=false&drugs=false&alcohol=false

Request

GET /api/calc/has_bled · x402 V2 · USDC on Base · $0.005 USDC

x402 V2 curl

Expect HTTP 402 and a PAYMENT-REQUIRED header until you retry with PAYMENT-SIGNATURE.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/has_bled?age=78&hypertension=true&abnormal_renal=false&abnormal_liver=false&stroke=false&bleeding=false&labile_inr=false&drugs=false&alcohol=false"

Cursor mcp.json

Intended config for @magent/mcp. This is not npm @x402/fetch (a payment fetch wrapper).

{
  "mcpServers": {
    "magent": {
      "args": [
        "-y",
        "@magent/mcp"
      ],
      "command": "npx",
      "env": {
        "X402_PRIVATE_KEY": "0xYOUR_SPENDING_KEY"
      }
    }
  }
}

Query parameters

Success fields

Example

Frozen fixture. Not a live lookup.

{
  "components": [
    {
      "factor": "hypertension",
      "points": 1,
      "present": true
    },
    {
      "factor": "abnormal_renal",
      "points": 0,
      "present": false
    },
    {
      "factor": "abnormal_liver",
      "points": 0,
      "present": false
    },
    {
      "factor": "stroke",
      "points": 0,
      "present": false
    },
    {
      "factor": "bleeding",
      "points": 0,
      "present": false
    },
    {
      "factor": "labile_inr",
      "points": 0,
      "present": false
    },
    {
      "value": 78,
      "factor": "elderly_age_gt_65",
      "points": 1,
      "present": true
    },
    {
      "factor": "drugs",
      "points": 0,
      "present": false
    },
    {
      "factor": "alcohol",
      "points": 0,
      "present": false
    }
  ],
  "disclaimer": "Not a medical device. Deterministic published-formula or coded-ontology output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "age_years": 78,
  "citation": {
    "authors": "Pisters R, Lane DA, Nieuwlaat R, de Vos CB, Crijns HJ, Lip GYH",
    "doi": "10.1378/chest.10-0134",
    "id": "pisters-2010",
    "source": "Chest. 2010;138(5):1093-1100",
    "title": "A novel user-friendly score (HAS-BLED) to assess 1-year risk of major bleeding in patients with atrial fibrillation: the Euro Heart Survey"
  },
  "formula": "has_bled",
  "max_score": 9,
  "score": 2
}

Payment

Unpaid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. Retry the same URL with PAYMENT-SIGNATURE. Settlement completes before the tool runs. Full handshake and shared payment errors: Payments.

Errors

Guarantees

• Settlement finishes before the tool executes. Uncertain settlement fails closed (HTTP 503).
• Lookups run on our nodes — no third-party data API wrappers.
• Localhost, IP literals, and metadata hostnames are rejected.
• Execution is timeout-bounded and concurrency-capped.