For each field cell, subtracts measured available nutrient from a supplied targe
For each field cell, subtracts measured available nutrient from a supplied target and divides positive deficits by an explicit recovery fraction. It reports per-hectare rates and area totals. It does not infer crop targets, validate laboratory samples, account for nutrient chemistry or constitute an agronomic application prescription.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
1282 msmedian answer time
$0.004listed price per call
$0.004price 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://agri.halowerk.com/v1/fertilizer-map
| Category | Everything else |
|---|---|
| Provider host | agri.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.004 | 1282 ms |
Example input (from the provider)
{
"body": {
"cells": [
{
"area_hectares": 2.5,
"available_kg_per_ha": {
"nitrogen": 55,
"phosphorus": 21,
"potassium": 92
},
"cell_id": "north-01",
"target_kg_per_ha": {
"nitrogen": 90,
"phosphorus": 30,
"potassium": 110
}
},
{
"area_hectares": 1.8,
"available_kg_per_ha": {
"nitrogen": 76,
"phosphorus": 33,
"potassium": 105
},
"cell_id": "north-02",
"target_kg_per_ha": {
"nitrogen": 90,
"phosphorus": 30,
"potassium": 110
}
}
],
"maximum_rate_kg_per_ha": {
"nitrogen": 80,
"phosphorus": 40,
"potassium": 60
},
"recovery_fraction": {
"nitrogen": 0.65,
"phosphorus": 0.35,
"potassium": 0.75
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"cells": {
"items": {
"additionalProperties": false,
"properties": {
"area_hectares": {
"maximum": 1000000,
"minimum": 0.0001,
"type": "number"
},
"available_kg_per_ha": {
"additionalProperties": false,
"properties": {
"nitrogen": {
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"phosphorus": {
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"potassium": {
"maximum": 100000,
"minimum": 0,
"type": "number"
}
},
"required": [
"nitrogen",
"phosphorus",
"potassium"
],
"type": "object"
},
"cell_id": {
"maxLength": 128,
"minLength": 1,
"type": "string"
},
"target_kg_per_ha": {
"additionalProperties": false,
"properties": {
"nitrogen": {
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"phosphorus": {
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"potassium": {
"maximum": 100000,
"minimum": 0,
"type": "number"
}
},
"required": [
"nitrogen",
"phosphorus",
"potassium"
],
"type": "object"
}
},
"required": [
"cell_id",
"area_hectares",
"available_kg_per_ha",
"target_kg_per_ha"
],
"type": "object"
},
"maxItems": 10000,
"minItems": 1,
"type": "array"
},
"maximum_rate_kg_per_ha": {
"additionalProperties": false,
"properties": {
"nitrogen": {
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"phosphorus": {
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"potassium": {
"maximum": 100000,
"minimum": 0,
"type": "number"
}
},
"required": [
"nitrogen",
"phosphorus",
"potassium"
],
"type": "object"
},
"recovery_fraction": {
"additionalProperties": false,
"properties": {
"nitrogen": {
"maximum": 1,
"minimum": 0.01,
"type": "number"
},
"phosphorus": {
"maximum": 1,
"minimum": 0.01,
"type": "number"
},
"potassium": {
"maximum": 1,
"minimum": 0.01,
"type": "number"
}
},
"required": [
"nitrogen",
"phosphorus",
"potassium"
],
"type": "object"
}
},
"required": [
"cells",
"recovery_fraction",
"maximum_rate_kg_per_ha"
],
"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"
}