Circulating supply history for a single named stablecoin.

Same shape as `/stablecoin/supply` but scoped to one symbol. Use this when you only need USDT (or USDC, or a newer symbol) and don't want to pay the cost of the full bundle. Unknown symbols return `latest: null, series: []` with `meta.unavailable = "no-data"` — still a 200.

Path parameters

Segments of the URL path, validated server-side.

Query parameters

All query parameters are optional unless marked required.

Response shape

Always wrapped in the standard envelope. Nullable fields are explicitly marked — treat missing numeric data as a real data-source gap, not as an error.

// Wrapped in the standard envelope:
// {
//   data: /* shape below */,
//   meta?: { total?: number; limit?: number; offset?: number; ... }
// }

{
  symbol: string;
  days: number;
  latest: { ts: number; circulating: number } | null;
  series: Array<{
    ts: number;
    circulating: number;
    minted24h: number | null;
    burned24h: number | null;
  }>;
}

Example

Copy the curl, replace YOUR_KEY with a real key from your dashboard, and run.

curl -sS "http://localhost:3000/api/v1/on-chain/stablecoin/USDT?days=30"

{
  "data": {
    "symbol": "USDT",
    "days": 30,
    "latest": { "ts": 1744761600000, "circulating": 112500000000 },
    "series": [
      { "ts": 1744675200000, "circulating": 112300000000, "minted24h": 200000000, "burned24h": null }
    ]
  },
  "meta": { "total": 1, "days": 30 }
}

Notes

• Symbol validation is permissive (2–10 alphanumerics) so adding a new stablecoin needs no code change — if the feed carries it, this endpoint returns it.