AABB Standards 28th ed
AABB Standards 28th ed. Standard 5.14 RBC ABO/Rh compatibility from caller-assigned recipient and unit ABO (o, a, b, ab) and RhD (positive, negative). Group O RBCs to O/A/B/AB; A to A/AB; B to B/AB; AB to AB. RhD-negative units to either RhD; RhD-positive units only to RhD-positive recipients. Not a transfusion order. magent does not type blood. Does not encode emergency RhD-positive-to-negative exceptions, plasma, or platelets.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
287 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/rbc_abo
| 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 | $0.007 | 287 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"recipient_abo": "o",
"recipient_rhd": "negative",
"unit_abo": "o",
"unit_rhd": "negative"
},
{
"recipient_abo": "o",
"recipient_rhd": "negative",
"unit_abo": "o",
"unit_rhd": "negative"
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"recipient_abo": {
"description": "Caller-assigned recipient ABO group: o, a, b, or ab (case-insensitive). Required. magent does not type blood.",
"enum": [
"o",
"a",
"b",
"ab"
],
"type": "string"
},
"recipient_rhd": {
"description": "Caller-assigned recipient RhD: positive or negative (case-insensitive). Required. magent does not type blood.",
"enum": [
"positive",
"negative"
],
"type": "string"
},
"unit_abo": {
"description": "Caller-assigned RBC unit ABO group: o, a, b, or ab (case-insensitive). Required. magent does not type blood.",
"enum": [
"o",
"a",
"b",
"ab"
],
"type": "string"
},
"unit_rhd": {
"description": "Caller-assigned RBC unit RhD: positive or negative (case-insensitive). Required. magent does not type blood.",
"enum": [
"positive",
"negative"
],
"type": "string"
}
},
"required": [
"recipient_abo",
"recipient_rhd",
"unit_abo",
"unit_rhd"
],
"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"
}