Polygon area in km2, hectares, acres and square miles from lat,lon vertices, plu
Polygon area in km2, hectares, acres and square miles from lat,lon vertices, plus perimeter, centroid, bounding box and a point-in-polygon test
Answers HTTP 404 without x402 payment termsour last check, 2026-10-18
0 of 1checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/geo/polygon
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | no x402 terms | 404 | 224 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"points": "0,0;0,1;1,1;1,0",
"test_point": "0.5,0.5"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"properties": {
"points": {
"description": "Vertices written lat,lon;lat,lon;... (3-500)",
"type": "string"
},
"test_point": {
"description": "optional lat,lon to test whether it lies inside",
"type": "string"
}
},
"required": [
"points"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"area_acres": {
"description": "Area acres",
"type": "number"
},
"area_hectares": {
"description": "Area hectares",
"type": [
"number",
"null"
]
},
"area_km2": {
"description": "Area km2",
"type": "number"
},
"area_sq_miles": {
"description": "Area sq miles",
"type": [
"number",
"null"
]
},
"bounding_box": {
"description": "Bounding box",
"type": "object"
},
"centroid": {
"type": "object"
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"perimeter_km": {
"description": "Perimeter, in kilometres",
"type": "number"
},
"perimeter_miles": {
"description": "Perimeter miles",
"type": [
"number",
"null"
]
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"test_point": {
"description": "Test point",
"type": [
"object",
"null"
]
},
"vertices": {
"type": "number"
}
},
"required": [
"vertices",
"area_km2",
"perimeter_km",
"centroid"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}