Daily market research data, ready to query.

Every endpoint is a public GET request. For example, fetch the latest published BTC observation or request an inclusive range of daily observations:

curl -fsS https://api.derivasys.com/api/v1/data/BTC/latest

curl -fsS 'https://api.derivasys.com/api/v1/data/BTC/observations?start=2026-10-01&end=2026-10-15&limit=7'

The range endpoint returns dates in ascending order. When hasMore is true, send nextCursor as cursor on the next request and keep the same asset, start, and end. The cursor is exclusive, so the next page continues after the last date already returned.

from urllib.error import HTTPError, URLError
from urllib.parse import urlencode
from urllib.request import urlopen
import json

BASE = "https://api.derivasys.com/api/v1/data"

def get_json(url):
    try:
        with urlopen(url, timeout=20) as response:
            return json.load(response)
    except (HTTPError, URLError) as exc:
        raise RuntimeError(f"Data API request failed: {exc}") from exc

params = {"start": "2026-10-01", "end": "2026-10-15", "limit": 7}
cursor = None
observations = []
while True:
    query = dict(params)
    if cursor is not None:
        query["cursor"] = cursor
    page = get_json(f"{BASE}/BTC/observations?{urlencode(query)}")
    observations.extend(page["observations"])
    if not page["hasMore"]:
        break
    cursor = page["nextCursor"]

print(f"Received {len(observations)} observations")

Use the base URL https://api.derivasys.com/api/v1/data. Asset names are case-insensitive. Supported assets are BTC, ETH, SOL, XRP, HYPE, AVAX and TRX. The OpenAPI schema is available at https://api.derivasys.com/openapi.json.

• start and end are inclusive UTC calendar dates in YYYY-MM-DD format; the maximum span is 366 calendar days.
• limit is the maximum observations per page, from 1 to 31. The default is 31.
• A page can contain fewer observations than its limit because only published dates are returned. Missing publication dates are not filled in.
• When hasMore is true, pass nextCursor as cursor and retain the original asset, start, and end values.
• Responses are capped at 8 MiB. A request that exceeds the cap can return 422 response_too_large; reduce limit or narrow the requested range.

A range response includes schemaVersion, asset, start, end, limit, cursor, totalAvailable, returnedCount, hasMore, nextCursor, dates, and observations.

An observation identifies schemaVersion, asset, reportDate, timestamps, comparison status and note, tenor metrics, optional realised volatility, and provenance. currentSnapshotAt, previousSnapshotAt, and generatedAt are UTC timestamps; reportDate is the report's calendar date. Snapshot time and report date describe different things, and the API does not promise one exact publication time each day.

These endpoints expose daily published research snapshots. Use the live dashboard or live API products for current market state; this archive does not provide raw historical ticks.

The public API has no account or API key requirement. Research data is provided under the Derivasys Research Artifact License: https://www.derivasys.com/research-artifact-license/v1. Review the license and preserve the report provenance when using or redistributing results.