Service metadata

Extraits de code

curl "https://api.oanor.com/stablecoinchains-api/v1/meta" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/stablecoinchains-api/v1/meta", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/stablecoinchains-api/v1/meta");
curl_setopt($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/stablecoinchains-api/v1/meta",
    headers={"x-oanor-key": "oanor_test_..."}
)

Exemple de réponse

Une réponse réelle de ce endpoint, capturée lors du dernier contrôle de santé.

{
    "data": {
        "note": "stablecoin takes symbol (USDC or USDT, required). chains, summary and meta take no parameters. Amounts are in US dollars (native supply ÷ the token's on-chain decimals). Only natively-issued supply is counted (bridged/peg tokens excluded). A ~5-minute cache fronts the per-chain RPCs.",
        "sample": {
            "usd": 51392209705,
            "chain": "Ethereum",
            "symbol": "USDC"
        },
        "source": "public JSON-RPC per chain (USDC + USDT contracts), keyless, live",
        "service": "stablecoinchains-api",
        "endpoints": {
            "GET /v1/meta": "This document.",
            "GET /v1/chains": "Chains ranked by total native stablecoin liquidity.",
            "GET /v1/summary": "Total USDC/USDT, ratio, Ethereum dominance vs rollup share.",
            "GET /v1/stablecoin": "One stablecoin's supply per chain + Ethereum/rollup split (symbol=USDC)."
        },
        "description": "Where dollar stablecoin liquidity lives across blockchains, read live and keyless from each chain's RPC. USDC and USDT are issued natively on many chains; this reads their supply directly from the token contract on Ethereum, Base, Arbitrum, Optimism, Polygon and Avalanche. The stablecoin endpoint gives one stablecoin's supply per chain (USDC or USDT) with the Ethereum-versus-rollup split; chains ranks the chains by their total native stablecoin liquidity; summary is the top-down view — total USDC, total USDT, the ratio and Ethereum's dominance versus the rollup share. Dollar-pegged and read at each token's on-chain decimals, so supply equals dollars. The stablecoin chain-distribution cut — distinct from the single-chain token feeds, the generic stablecoin-supply aggregators and the price feeds.",
        "tracked_chains": [
            "Ethereum",
            "Base",
            "Arbitrum",
            "Optimism",
            "Polygon",
            "Avalanche"
        ],
        "upstream_status": "ok",
        "tracked_stablecoins": [
            "USDC",
            "USDT"
        ]
    },
    "meta": {
        "timestamp": "2026-06-12T19:35:40.505Z",
        "request_id": "88a78127-d2fd-4248-b9a6-fd2e6f78fa18"
    },
    "status": "ok",
    "message": "Meta",
    "success": true
}