Fredriksson 1978 PASI from four regions
Fredriksson 1978 PASI from four regions. Each region: area 0-6 and erythema, induration, and scaling 0-4. Region score = (sum of three signs) × area × adult weight (head 0.1, upper extremities 0.2, trunk 0.3, lower extremities 0.4). Total max 72. Adult weights only. magent does not examine the skin. No IGA or later severity bands. Not a diagnosis. Not EASI.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
345 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/pasi
| 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 | $0.007 | 345 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"head_area": 0,
"head_erythema": 0,
"head_induration": 0,
"head_scaling": 0,
"lower_extremities_area": 0,
"lower_extremities_erythema": 0,
"lower_extremities_induration": 0,
"lower_extremities_scaling": 0,
"trunk_area": 0,
"trunk_erythema": 0,
"trunk_induration": 0,
"trunk_scaling": 0,
"upper_extremities_area": 0,
"upper_extremities_erythema": 0,
"upper_extremities_induration": 0,
"upper_extremities_scaling": 0
},
{
"head_area": 0,
"head_erythema": 0,
"head_induration": 0,
"head_scaling": 0,
"lower_extremities_area": 0,
"lower_extremities_erythema": 0,
"lower_extremities_induration": 0,
"lower_extremities_scaling": 0,
"trunk_area": 0,
"trunk_erythema": 0,
"trunk_induration": 0,
"trunk_scaling": 0,
"upper_extremities_area": 0,
"upper_extremities_erythema": 0,
"upper_extremities_induration": 0,
"upper_extremities_scaling": 0
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"head_area": {
"description": "Caller-assigned Fredriksson 1978 PASI area of involvement for this body region (integer 0-6): 0 none, 1 <10%, 2 10-29%, 3 30-49%, 4 50-69%, 5 70-89%, 6 90-100%. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4,
5,
6
],
"type": "integer"
},
"head_erythema": {
"description": "Caller-assigned Fredriksson 1978 PASI erythema for this region (integer 0-4): 0 none, 1 slight, 2 moderate, 3 severe, 4 very severe. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4
],
"type": "integer"
},
"head_induration": {
"description": "Caller-assigned Fredriksson 1978 PASI induration for this region (integer 0-4): 0 none, 1 slight, 2 moderate, 3 severe, 4 very severe. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4
],
"type": "integer"
},
"head_scaling": {
"description": "Caller-assigned Fredriksson 1978 PASI scaling for this region (integer 0-4): 0 none, 1 slight, 2 moderate, 3 severe, 4 very severe. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4
],
"type": "integer"
},
"lower_extremities_area": {
"description": "Caller-assigned Fredriksson 1978 PASI area of involvement for this body region (integer 0-6): 0 none, 1 <10%, 2 10-29%, 3 30-49%, 4 50-69%, 5 70-89%, 6 90-100%. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4,
5,
6
],
"type": "integer"
},
"lower_extremities_erythema": {
"description": "Caller-assigned Fredriksson 1978 PASI erythema for this region (integer 0-4): 0 none, 1 slight, 2 moderate, 3 severe, 4 very severe. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4
],
"type": "integer"
},
"lower_extremities_induration": {
"description": "Caller-assigned Fredriksson 1978 PASI induration for this region (integer 0-4): 0 none, 1 slight, 2 moderate, 3 severe, 4 very severe. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4
],
"type": "integer"
},
"lower_extremities_scaling": {
"description": "Caller-assigned Fredriksson 1978 PASI scaling for this region (integer 0-4): 0 none, 1 slight, 2 moderate, 3 severe, 4 very severe. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4
],
"type": "integer"
},
"trunk_area": {
"description": "Caller-assigned Fredriksson 1978 PASI area of involvement for this body region (integer 0-6): 0 none, 1 <10%, 2 10-29%, 3 30-49%, 4 50-69%, 5 70-89%, 6 90-100%. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4,
5,
6
],
"type": "integer"
},
"trunk_erythema": {
"description": "Caller-assigned Fredriksson 1978 PASI erythema for this region (integer 0-4): 0 none, 1 slight, 2 moderate, 3 severe, 4 very severe. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4
],
"type": "integer"
},
"trunk_induration": {
"description": "Caller-assigned Fredriksson 1978 PASI induration for this region (integer 0-4): 0 none, 1 slight, 2 moderate, 3 severe, 4 very severe. magent does not examine the skin.",
"enum": [
0,
1,
2,
3,
4
],
"type": "integer"
},
"trunk_scaling": {
"description": "Caller-assigned Fredriksson 1978 PASI scaling for this region (i