Davis 2017 HEAVEN criteria from six caller-assigned flags
Davis 2017 HEAVEN criteria from six caller-assigned flags: hypoxemia (SpO2 ≤93% at initial laryngoscopy as assigned), extremes of size (pediatric ≤8 years or clinical obesity as assigned), anatomic challenges, vomit/blood/fluid, exsanguination, and limited neck mobility. high_risk iff any is true; criteria_met is the count of true flags (0-6); low_risk iff none. Not an intubation order. magent does not measure SpO2 or examine the airway. Not Mallampati, not EGRI.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
302 msmedian answer time
$0.005listed price per call
$0.007price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.magentlab.com/api/calc/heaven
| Category | Everything else |
|---|---|
| Provider host | api.magentlab.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.007 | 302 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"anatomic_challenges": false,
"exsanguination": false,
"extremes_of_size": false,
"hypoxemia": false,
"neck_mobility_limited": false,
"vomit_blood_fluid": false
},
{
"anatomic_challenges": false,
"exsanguination": false,
"extremes_of_size": false,
"hypoxemia": false,
"neck_mobility_limited": false,
"vomit_blood_fluid": false
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"anatomic_challenges": {
"description": "Anatomic challenges that limit laryngoscopy as assigned by the caller (Davis 2017). true is a HEAVEN flag. magent does not examine the airway.",
"type": "boolean"
},
"exsanguination": {
"description": "Exsanguination (suspected anemia that would accelerate desaturation) as assigned by the caller (Davis 2017). true is a HEAVEN flag. magent does not assay hemoglobin.",
"type": "boolean"
},
"extremes_of_size": {
"description": "Extremes of size (pediatric \u22648 years or clinical obesity) as assigned by the caller (Davis 2017). true is a HEAVEN flag. magent does not examine the patient or assign age.",
"type": "boolean"
},
"hypoxemia": {
"description": "Hypoxemia (SpO2 \u226493% at initial laryngoscopy) as assigned by the caller (Davis 2017). true is a HEAVEN flag. magent does not measure SpO2.",
"type": "boolean"
},
"neck_mobility_limited": {
"description": "Limited neck mobility as assigned by the caller (Davis 2017). true is a HEAVEN flag. magent does not examine the neck.",
"type": "boolean"
},
"vomit_blood_fluid": {
"description": "Vomit, blood, or fluid in the pharynx or hypopharynx as assigned by the caller (Davis 2017). true is a HEAVEN flag. magent does not examine the airway.",
"type": "boolean"
}
},
"required": [
"hypoxemia",
"extremes_of_size",
"anatomic_challenges",
"vomit_blood_fluid",
"exsanguination",
"neck_mobility_limited"
],
"type": "object"
},
"maxItems": 25,
"minItems": 1,
"type": "array"
}
},
"required": [
"items"
],
"type": "object"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}