Historical time series for a named sentiment index, ready for charting.

Returns up to `limit` datapoints for the requested index. Internally fetched newest-first and flipped to oldest → newest for direct chart consumption — so you don't need to `.reverse()` in the client.

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; ... }
// }

{
  indexName: string;
  latest: { ts: number; value: number; classification: string } | null;
  history: Array<{ ts: number; value: number; classification: string }>;
}

Example

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

curl -sS "http://localhost:3000/api/v1/sentiment/crypto_fear_greed/history?limit=7"

{
  "data": {
    "indexName": "crypto_fear_greed",
    "latest": { "ts": 1744761600000, "value": 62, "classification": "Greed" },
    "history": [
      { "ts": 1744243200000, "value": 54, "classification": "Neutral" },
      { "ts": 1744329600000, "value": 58, "classification": "Greed" }
    ]
  },
  "meta": { "total": 2, "limit": 7 }
}

Notes

• Fresh DB returns `{ latest: null, history: [] }` with `meta.unavailable = "no-data"`.