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GET /v1/chain

One chain TVL + change

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/chaintvl-api

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

Get an API key

Code snippets

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

Example response

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

{
    "data": {
        "chain": {
            "name": "Ethereum",
            "rank": 1,
            "tvl_usd": 37525912986,
            "chain_id": 1,
            "gecko_id": "ethereum",
            "token_symbol": "ETH",
            "change_7d_pct": -10.09,
            "dominance_pct": 52,
            "change_30d_pct": -17.64
        }
    },
    "meta": {
        "timestamp": "2026-06-09T03:03:07.223Z",
        "request_id": "ac62a327-6510-494e-8091-bf6b86da830f"
    },
    "status": "ok",
    "message": "Chain retrieved successfully",
    "success": true
}