For each field cell, subtracts measured available nutrient from a supplied target and divi
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.
4000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-01
updated
Provider
agri.halowerk.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "4000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"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"
}
},
"schema": {
"$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"
}
}
}Use it
curl
curl "https://agri.halowerk.com/v1/fertilizer-map" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://agri.halowerk.com/v1/fertilizer-map");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://agri.halowerk.com/v1/fertilizer-map")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/15275.json, and this resource appears in /discovery/resources and /discovery/search.