Endpoint Playground
Returns Alt's own category-level price-trend index -- the same data alt.xyz's "Market Trends" page shows: a weekly/monthly/90-day change and a current index value per card category, built from Alt's own sold/valuation data.
14 Oct 2026: 7 categories; 9 fields had a value in every checked item.
Sample value profiles: start_date: 2026-07-11; weekly_change: 0 to 0.07, median 0.01; category: “BASKETBALL_CARDS” and 6 other values.
curl 'https://api.crawlora.net/api/v1/alt/market-trends' \
-H "x-api-key: $CRAWLORA_API_KEY"| Parameter | Type | Required | Prefilled value | Description |
|---|---|---|---|---|
| category | string | No | Optional exact category filter -- must match one of the categories present in the live response (a subset of alt-categories' category list; Alt only publishes a trend index for its own tracked sports categories). Omit to get every tracked category. |
{
"code": 200,
"msg": "OK",
"data": {
"updated_at": "2026-09-16T00:00:00+00:00",
"version": 42,
"categories": [
{
"category": "BASKETBALL_CARDS",
"start_date": "2026-06-07",
"end_date": "2026-09-07",
"current_index_value": 10208.990057733714,
"weekly_change": 0.015332941318226824,
"weekly_index_change": 154.16996642535923,
"monthly_change": 0.0804380022254576,
"ninety_day_change": 0.1960414688336092,
"ninety_day_index_change": 1673.3411494315496
}
]
}
}The sample response, schema and code snippets below work without an account. Sending a live request needs an API key.