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GET /v1/parallax

Parallax from distance

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/parallax-api

It works. Grab an API key and use it in your project.

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Code snippets

curl "https://api.oanor.com/parallax-api/v1/parallax" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/parallax-api/v1/parallax", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/parallax-api/v1/parallax");
curl_setopt($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/parallax-api/v1/parallax",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "p(arcsec) = 1/d(pc). Nearer stars have larger parallax; Gaia measures down to microarcseconds.",
        "inputs": {
            "distance_parsec": 1.3
        },
        "parallax_mas": 769.230769,
        "parallax_arcsec": 0.7692307692
    },
    "meta": {
        "timestamp": "2026-06-05T19:50:26.466Z",
        "request_id": "1f449533-0162-42c2-91e3-bb550de73832"
    },
    "status": "ok",
    "message": "Parallax from distance",
    "success": true
}