Accurate WGS-84 distance and bearings between two coordinates with Vincenty, or
Accurate WGS-84 distance and bearings between two coordinates with Vincenty, or the destination point from a start, bearing and distance
Answeringour last check, 2026-10-20
1 of 1checks answered this week
462 msmedian answer time
$0.01listed price per call
$0.01price 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/geodesic
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-20 | valid payment request | 402 | $0.01 | 462 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"lat1": "40.6413",
"lat2": "51.47",
"lon1": "-73.7781",
"lon2": "-0.4543"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"lat1": {
"description": "Start latitude",
"type": "string"
},
"lat2": {
"description": "End latitude (for distance)",
"type": "string"
},
"lon1": {
"description": "Start longitude",
"type": "string"
},
"lon2": {
"description": "End longitude",
"type": "string"
}
},
"required": [
"lat1",
"lon1",
"lat2",
"lon2"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"destination": {
"description": "Destination",
"type": [
"object",
"null"
]
},
"difference_vs_haversine_m": {
"description": "Difference vs haversine m",
"type": [
"number",
"null"
]
},
"distance_km": {
"description": "Distance in kilometres",
"type": "number"
},
"distance_m": {
"description": "Distance, in metres",
"type": [
"number",
"null"
]
},
"distance_miles": {
"description": "Distance miles",
"type": [
"number",
"null"
]
},
"distance_nautical_miles": {
"description": "Distance nautical miles",
"type": [
"number",
"null"
]
},
"ellipsoid": {
"description": "Reference ellipsoid used for the calculation",
"type": "string"
},
"final_bearing_deg": {
"description": "Final bearing, in degrees",
"type": [
"number",
"null"
]
},
"from": {
"description": "Start of the range"
},
"haversine_km": {
"description": "Haversine, in kilometres",
"type": [
"number",
"null"
]
},
"initial_bearing_deg": {
"description": "Initial bearing, in degrees",
"type": [
"number",
"null"
]
},
"initial_compass": {
"description": "Initial compass",
"type": [
"string",
"null"
]
},
"method": {
"description": "Method used",
"type": "string"
},
"mode": {
"description": "Mode used",
"type": "string"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"to": {
"description": "End of the range"
}
},
"required": [
"mode",
"distance_km"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}