Computes cohort median, median absolute deviation and robust z-scores for one nu
Computes cohort median, median absolute deviation and robust z-scores for one numeric reading per device. A caller-selected threshold determines flags. It detects cross-sectional outliers only and does not diagnose root cause or learn temporal behavior.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
950 msmedian answer time
$0.003listed price per call
$0.003price 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://iot.halowerk.com/v1/fleet-anomaly
| Category | Everything else |
|---|---|
| Provider host | iot.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.003 | 950 ms |
Example input (from the provider)
{
"body": {
"readings": [
{
"device_id": "pump-1",
"value": 10.1
},
{
"device_id": "pump-2",
"value": 9.9
},
{
"device_id": "pump-3",
"value": 10.2
},
{
"device_id": "pump-4",
"value": 18.5
}
],
"threshold": 3.5
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"readings": {
"items": {
"additionalProperties": false,
"properties": {
"device_id": {
"maxLength": 128,
"minLength": 1,
"type": "string"
},
"value": {
"maximum": 1000000000000,
"minimum": -1000000000000,
"type": "number"
}
},
"required": [
"device_id",
"value"
],
"type": "object"
},
"maxItems": 10000,
"minItems": 3,
"type": "array"
},
"threshold": {
"description": "Absolute robust z-score threshold.",
"maximum": 20,
"minimum": 0.1,
"type": "number"
}
},
"required": [
"readings"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}