Historical chart data
Wallet
Historical chart data
Mirrors GraphQL historicalChartData (EchoZero chart: prices, market caps, volumes).
GET
Historical chart data
Authorizations
Headers
HMAC-SHA256 signature: HMAC-SHA256(secretKey, timestamp + METHOD + path + body). Required for API-key authenticated requests (JWT/OAuth session auth is exempt).
Request timestamp in epoch milliseconds. Required with x-signature for API-key auth. Rejected if drift exceeds 5 minutes.
Query Parameters
Chart window (defaults to ~7 days behavior when omitted, per GraphQL).
Available options:
ONE_YEAR, ONE_MONTH, ONE_WEEK, ONE_DAY