MoexIssAPI
get engines list
var engines = (await new EnginesRequest().Get()).Engines.Data;get markets list
var markets = (await new MarketsRequest(engine).Get()).Markets.Data;get securities list
var securities = (await new MarketSecuritiesListRequest(engine, market).Get()).Securities.Data;get security history data
var history = (await new SecurityHistoryRequest(engine,market, security).Get()).Object.Data;or
var history = (await new SecurityHistoryRequest(engine,market,board,security).Get()).Object.Data;bond coupons
var history = (await new BondCopunsRequest(security).Get()).Coupons.Data;