Antipode (opposite point) API

Returns the antipodal coordinate diametrically opposite a point through Earth's center, plus the antipodal distance. Answers 'What is the point on the exact opposite side of the Earth?', 'How far away is the antipode?'.

Price$0.02per request

MethodPOST

Route/v1/geo/antipode

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

geogisantipodeantipodaloppositespherediametriccoordinatesgeography

API URLhttps://x402.hexl.dev/v1/geo/antipode

Integration docs

Example request

{
  "point": {
    "latitude": 51.5074,
    "longitude": -0.1278
  }
}

Example response

{
  "point": {
    "latitude": 51.5074,
    "longitude": -0.1278
  },
  "antipode": {
    "latitude": -51.5074,
    "longitude": 179.8722
  },
  "distanceKm": 20015.114442,
  "interpretation": "The antipode of 51.5074, -0.1278 is -51.5074, 179.8722 — the farthest point on Earth (~20015 km away)."
}

Input schema

{
  "type": "object",
  "required": [
    "point"
  ],
  "properties": {
    "point": {
      "type": "object",
      "properties": {
        "latitude": {
          "type": "number"
        },
        "longitude": {
          "type": "number"
        }
      },
      "examples": [
        {
          "latitude": 51.5074,
          "longitude": -0.1278
        }
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}