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GET /v1/proxy

Resolve proxy implementation/admin/beacon across all standards

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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/storageslot-api

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Code snippets

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

Example response

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

{
    "data": {
        "note": "Resolves the proxy implementation/admin/beacon by reading the standard proxy storage slots (EIP-1967, EIP-1822/UUPS, legacy OpenZeppelin/zeppelinos). is_proxy is false when none are set.",
        "admin": null,
        "chain": "ethereum",
        "slots": {
            "eip1967_admin": null,
            "eip1967_beacon": null,
            "zeppelinos_impl": {
                "raw": "0x00000000000000000000000043506849d7c04f9138d1a2050bbf3a0c054402dd",
                "role": "implementation",
                "address": "0x43506849d7c04f9138d1a2050bbf3a0c054402dd",
                "standard": "OpenZeppelin/zeppelinos (legacy)"
            },
            "eip1822_proxiable": null,
            "eip1967_implementation": null
        },
        "beacon": null,
        "source": "public JSON-RPC (publicnode)",
        "address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
        "is_proxy": true,
        "implementation": "0x43506849d7c04f9138d1a2050bbf3a0c054402dd",
        "implementation_standard": "OpenZeppelin/zeppelinos (legacy)"
    },
    "meta": {
        "timestamp": "2026-06-14T08:04:11.710Z",
        "request_id": "f491eac2-364c-4725-8ce8-525a30bc599d"
    },
    "status": "ok",
    "message": "Proxy storage resolved successfully",
    "success": true
}