{"service":"Margin API","description":"Margin calculation, sufficiency checking, haircut rate lookup, and breach detection for collateral positions on Base.","network":"eip155:8453","endpoints":[{"method":"GET","path":"/calculate","price":"$0.01","description":"Calculate required margin for collateral"},{"method":"GET","path":"/check","price":"$0.01","description":"Check if posted margin is sufficient"},{"method":"GET","path":"/haircut","price":"$0.01","description":"Get standard haircut rates by asset class"},{"method":"GET","path":"/breach","price":"$0.02","description":"Check if position is in margin breach"}]}