Sums enhancement_ppm×pixel_area, multiplies by wind speed, plume orientation, an
Sums enhancement_ppm×pixel_area, multiplies by wind speed, plume orientation, and a caller-supplied conversion factor, and reports the resulting proxy and optional kg/h estimate. It does not retrieve satellite data, remove background, solve atmospheric transport, determine source location, or validate the conversion factor.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
892 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://space.halowerk.com/v1/methane-leak-sat
| Category | Everything else |
|---|---|
| Provider host | space.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 | $0.004 | 892 ms |
Example input (from the provider)
{
"body": {
"conversion_kg_per_ppm_m3": 6.56e-07,
"pixels": [
{
"enhancement_ppm": 0.18,
"pixel_area_m2": 400,
"pixel_id": "px-1"
},
{
"enhancement_ppm": 0.31,
"pixel_area_m2": 400,
"pixel_id": "px-2"
},
{
"enhancement_ppm": 0.12,
"pixel_area_m2": 400,
"pixel_id": "px-3"
}
],
"plume_orientation_factor": 0.85,
"wind_speed_m_s": 4.2
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"conversion_kg_per_ppm_m3": {
"description": "Caller-supplied mass conversion factor; use zero to request only the unitless proxy.",
"maximum": 1000000000,
"minimum": 0,
"type": "number"
},
"pixels": {
"items": {
"additionalProperties": false,
"properties": {
"enhancement_ppm": {
"maximum": 1000000000,
"minimum": 0,
"type": "number"
},
"pixel_area_m2": {
"maximum": 1000000000000,
"minimum": 1e-06,
"type": "number"
},
"pixel_id": {
"maxLength": 128,
"minLength": 1,
"type": "string"
}
},
"required": [
"pixel_id",
"enhancement_ppm",
"pixel_area_m2"
],
"type": "object"
},
"maxItems": 100000,
"minItems": 1,
"type": "array"
},
"plume_orientation_factor": {
"description": "Caller-estimated fraction of wind perpendicular to the integration cross-section.",
"maximum": 1,
"minimum": 0,
"type": "number"
},
"wind_speed_m_s": {
"maximum": 200,
"minimum": 0,
"type": "number"
}
},
"required": [
"pixels",
"wind_speed_m_s",
"plume_orientation_factor",
"conversion_kg_per_ppm_m3"
],
"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"
}