{"openapi":"3.1.0","info":{"title":"Livable Area API","version":"1.0.0","description":"Modeled 30-minute travel-time isochrones from Union Station, Toronto, by transit and car, plus marginal analysis of proposed transit lines ranked by added km² per billion dollars of budget. All figures are modeled estimates. Source data: TTC and GO Transit GTFS, OpenStreetMap, 2021 Census (StatCan table 98-10-0015), published Metrolinx alignments and budgets. MIT licensed."},"servers":[{"url":"https://livable.canada.nshipyard.com/api/v1"}],"paths":{"/isochrone":{"get":{"summary":"One modeled isochrone: mode, minutes, km², population when computed, polygon rings","parameters":[{"name":"mode","in":"query","required":false,"schema":{"type":"string","default":"transit"},"description":"One of the available modes; car is still computing"},{"name":"minutes","in":"query","required":false,"schema":{"type":"integer","default":30,"enum":[15,30,45,60]}}],"responses":{"200":{"description":"Isochrone record with rings as lists of [lon, lat]"},"400":{"description":"Unknown mode or threshold"}}}},"/corridors":{"get":{"summary":"Proposed lines ranked by added 30-minute km² per billion dollars; fallback line metadata while computing","responses":{"200":{"description":"status ready|computing plus ranking or line metadata"}}}}}}