Endpoint catalogue, common codes & notes

Code-Snippets

curl "https://api.oanor.com/epsg-api/v1/meta" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/epsg-api/v1/meta", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/epsg-api/v1/meta");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);

import requests
requests.get(
    "https://api.oanor.com/epsg-api/v1/meta",
    headers={"x-oanor-key": "oanor_test_..."}
)

Beispiel-Response

Echte Antwort dieses Endpoints, erfasst beim letzten Health-Check.

{
    "data": {
        "note": "Every coordinate reference system (CRS) — geographic systems like WGS 84 and projected systems like Web Mercator or UTM zones — has an EPSG code. /v1/search?q=web mercator searches the official EPSG dataset and returns matching CRS codes, names and types (geographic, projected, …); /v1/crs?code=4326 resolves a code to its full definition — name, kind, area of use, scope and, crucially, the ready-to-use PROJ.4 string and WKT definition you can drop straight into GIS libraries (GDAL, PROJ, PostGIS, Leaflet, OpenLayers, …). EPSG codes look like 4326 (WGS 84 / GPS), 3857 (Web Mercator), 25832 (UTM zone 32N) or 27700 (British National Grid). Search data from the official EPSG Registry (IOGP); PROJ.4/WKT from epsg.io. A geodesy / coordinate-reference-system resource — distinct from geocoding (addresses to coordinates), geohashing and administrative-boundary APIs. Ideal for GIS, mapping, surveying and spatial-data tooling.",
        "source": "EPSG dataset — official Registry (apps.epsg.org) + epsg.io exports",
        "examples": {
            "WGS 84 (GPS)": 4326,
            "Web Mercator": 3857,
            "British National Grid": 27700,
            "ETRS89 / UTM zone 32N": 25832
        },
        "endpoints": [
            "/v1/search",
            "/v1/crs",
            "/v1/meta"
        ]
    },
    "meta": {
        "timestamp": "2026-06-01T16:22:46.239Z",
        "request_id": "b198f3e0-d1d6-4c0e-91ba-927e8175a445"
    },
    "status": "ok",
    "message": "Meta retrieved",
    "success": true
}