/v1/serialize
Build a Set-Cookie
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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.
It works. Grab an API key and use it in your project.
Get an API keyCode snippets
curl "https://api.oanor.com/cookie-api/v1/serialize" \ -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/cookie-api/v1/serialize", {
headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/cookie-api/v1/serialize");
curl_setopt($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/cookie-api/v1/serialize",
headers={"x-oanor-key": "oanor_test_..."}
)
Example response
A real response from this endpoint, captured by the latest health check.
{
"data": {
"name": "sid",
"value": "abc",
"set_cookie": "sid=abc; Path=/; Max-Age=3600; SameSite=Lax"
},
"meta": {
"timestamp": "2026-06-03T09:25:04.665Z",
"request_id": "5122de44-639a-4023-80ba-6d183d6a1049"
},
"status": "ok",
"message": "Build a Set-Cookie",
"success": true
}