Before/after satellite comparison of the same area on two dates from NASA GIBS t
Before/after satellite comparison of the same area on two dates from NASA GIBS true-color imagery (MODIS or VIIRS, about 250 m per pixel): one side-by-side JPEG with date labels plus pixel-based change metrics (share of changed pixels, brightness change) and a cloud, haze and snow estimate for each date, with a plain-language reading that says whether the change is likely real or just weather.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
1179 msmedian answer time
$0.013listed price per call
$0.013price 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://agentsvc.io/api/v1/proxy/satellite-compare
| Category | Everything else |
|---|---|
| Provider host | agentsvc.io |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 5 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.013 | 1179 ms |
Example input (from the provider)
{
"body": {
"date_after": "2016-05-10",
"date_before": "2014-05-10",
"lat": -18.75,
"lon": -67.1,
"radius_km": 50,
"width": 256
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"bbox": {
"items": {
"type": "number"
},
"maxItems": 4,
"minItems": 4,
"type": "array"
},
"date_after": {
"description": "YYYY-MM-DD, default yesterday",
"type": "string"
},
"date_before": {
"description": "YYYY-MM-DD, default 365 days before date_after",
"type": "string"
},
"include_separate": {
"default": false,
"description": "Also return both images separately as base64",
"type": "boolean"
},
"lat": {
"type": "number"
},
"layer": {
"default": "modis_terra",
"enum": [
"modis_terra",
"modis_aqua",
"viirs_snpp",
"viirs_noaa20"
],
"type": "string"
},
"lon": {
"type": "number"
},
"place": {
"description": "Place name instead of coordinates, e.g. \"Valencia, Spain\" (GeoNames, cities and towns)",
"type": "string"
},
"radius_km": {
"default": 50,
"maximum": 500,
"minimum": 5,
"type": "number"
},
"width": {
"default": 384,
"description": "Width of each of the two images; the composite is 2 x width + 8 px",
"maximum": 768,
"minimum": 64,
"type": "integer"
}
},
"required": []
},
"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"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"attribution": {
"type": "string"
},
"bbox": {
"properties": {
"max_lat": {
"type": "number"
},
"max_lon": {
"type": "number"
},
"min_lat": {
"type": "number"
},
"min_lon": {
"type": "number"
}
},
"type": "object"
},
"change": {
"properties": {
"after": {
"properties": {
"cloud_haze_or_snow_pct": {
"type": "number"
},
"cloud_or_snow_pct": {
"type": "number"
},
"mean_brightness": {
"type": "number"
},
"no_data_pct": {
"type": "integer"
}
},
"type": "object"
},
"before": {
"properties": {
"cloud_haze_or_snow_pct": {
"type": "number"
},
"cloud_or_snow_pct": {
"type": "number"
},
"mean_brightness": {
"type": "number"
},
"no_data_pct": {
"type": "integer"
}
},
"type": "object"
},
"changed_pixels_pct": {
"type": "number"
},
"mean_brightness_change_pct": {
"type": "number"
},
"reading": {
"type": "string"
},
"reliable": {
"type": "boolean"
}
},
"type": "object"
},
"date_after": {
"type": "string"
},
"date_before": {
"type": "string"
},
"height": {
"type": "integer"
},
"image_base64": {
"type": "string"
},
"layer": {
"type": "string"
},
"layer_id": {
"type": "string"
},
"layout": {
"type": "string"
},
"mime_type": {
"type": "string"
},
"note": {
"type": "string"
},
"size_bytes": {
"type": "integer"
},
"width": {
"type": "integer"
}
},
"required": [
"image_base64",