% curl 'https://api.marketstack.com/v2/indexlist?access_key=<key>'         
{"pagination":{"limit":100,"offset":0,"count":100,"total":"113"},"data":[{"benchmark":"adx_general"},{"benchmark":"ase"},{"benchmark":"aspi"},{"benchmark":"asx200"},{"benchmark":"athens_general"},{"benchmark":"atx"},{"benchmark":"au50"},{"benchmark":"australia_all_ordinaries"},{"benchmark":"be20"},{"benchmark":"belex_15"},{"benchmark":"bet"},{"benchmark":"bist_100"},{"benchmark":"blom"},{"benchmark":"bsx"},{"benchmark":"bux"},{"benchmark":"bvpsi"},{"benchmark":"cfg_25"},{"benchmark":"ch20"},{"benchmark":"ch50"},{"benchmark":"colcap"},{"benchmark":"copenhagen"},{"benchmark":"crobex"},{"benchmark":"cse_general"},{"benchmark":"csi_300"},{"benchmark":"de40"},{"benchmark":"dfm_general"},{"benchmark":"dsei"},{"benchmark":"dse_broad"},{"benchmark":"ecuador_general"},{"benchmark":"egx_30"},{"benchmark":"es35"},{"benchmark":"estirad"},{"benchmark":"eu100"},{"benchmark":"eu350"},{"benchmark":"eu50"},{"benchmark":"eu600"},{"benchmark":"euro_stoxx_banks"},{"benchmark":"fklci"},{"benchmark":"fr40"},{"benchmark":"gaborone"},{"benchmark":"gb100"},{"benchmark":"ggseci"},{"benchmark":"helsinki"},{"benchmark":"helsinki_25"},{"benchmark":"hk50"},{"benchmark":"hnx"},{"benchmark":"ibc"},{"benchmark":"ibovespa"},{"benchmark":"icex"},{"benchmark":"igpa"},{"benchmark":"ipc"},{"benchmark":"iseq"},{"benchmark":"it40"},{"benchmark":"jci"},{"benchmark":"jp225"},{"benchmark":"jpvix"},{"benchmark":"jse"},{"benchmark":"kase"},{"benchmark":"kse_100"},{"benchmark":"kuwait_all_share"},{"benchmark":"lsx_composite"},{"benchmark":"luxx"},{"benchmark":"mbi_10"},{"benchmark":"merval"},{"benchmark":"moex"},{"benchmark":"monex"},{"benchmark":"mse"},{"benchmark":"mse_20"},{"benchmark":"msm_30"},{"benchmark":"nairobi_20"},{"benchmark":"nairobi_all_share"},{"benchmark":"nifty_50"},{"benchmark":"nl25"},{"benchmark":"nse-all_share"},{"benchmark":"nsx_overall"},{"benchmark":"nzx_50"},{"benchmark":"oslo"},{"benchmark":"peru_general"},{"benchmark":"pfts"},{"benchmark":"psei"},{"benchmark":"psi_20"},{"benchmark":"psi_geral"},{"benchmark":"px"},{"benchmark":"qe"},{"benchmark":"riga"},{"benchmark":"sa40"},{"benchmark":"saall"},{"benchmark":"sasx-10"},{"benchmark":"sax"},{"benchmark":"sbitop"},{"benchmark":"semdex"},{"benchmark":"sensex"},{"benchmark":"set_50"},{"benchmark":"shanghai"},{"benchmark":"shanghai_50"},{"benchmark":"sofix"},{"benchmark":"sti"},{"benchmark":"stockholm"},{"benchmark":"ta-125"},{"benchmark":"taiwan_stock_market_index"}]}