Composite charts traditionally have an ambiguous house system - two midpoint angles don't obviously produce twelve house cusps.
Our API now makes it concrete: Placidus cusps are derived from the composite MC (the midpoint of both Midheavens) at a reference latitude, so the relationship chart gets real, calculable houses instead of a workaround.
On top of that, the composite report resolves the chart ruler (the modern ruler of the composite Ascendant sign, plus its classical co-ruler), the nodal axis by house (where the relationship is headed), and midpoint structures - tight-orb apex points like Venus on the Sun/Moon midpoint, each tagged stable, unstable, or ambiguous depending on how close the two source planets sit to an exact 180 degrees apart.
A transit-scanner adapter tracks when real-time transits activate the composite chart's Sun, Moon, Venus, Saturn, and angles, with a target point and exactness (exact vs.
close approach) for each hit.
All of it feeds the new premium Composite PDF Report - a decision-grade relationship document generated from the full analysis in one call.
Real composite houses, chart-ruler, midpoint structures, transit tracking, and a PDF report