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GET /v1/merge

Deep-merge objects

Try it live

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

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

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

Get an API key

Code snippets

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

Example response

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

{
    "data": {
        "result": {
            "a": 1,
            "b": {
                "c": 2,
                "d": 3
            },
            "e": 4
        },
        "sources": 2,
        "null_strategy": "overwrite",
        "array_strategy": "replace"
    },
    "meta": {
        "timestamp": "2026-06-03T17:42:22.207Z",
        "request_id": "bce488eb-3b87-4948-a4ba-332c1356f048"
    },
    "status": "ok",
    "message": "Deep-merge objects",
    "success": true
}