Create Human Design Chart

Naive local wall-clock birth datetime (YYYY-MM-DDTHH:MM:SS, no zone suffix), resolved by the server. Mutually exclusive with birth_datetime_utc — exactly one of the two is required. The zone comes from the sibling timezone field when supplied, otherwise from latitude/longitude; the historical-correction overlay is consulted for pre-1970 dates. The resolution is echoed back in the response metadata as tz_confidence / tz_rule_source / tz_resolved_offset / resolved_utc.

Birth instant as an RFC 3339 datetime, e.g. '1987-07-15T14:01:00Z'. The caller has already done the timezone math, so the historical-correction overlay does not apply. Mutually exclusive with birth_datetime_local.

Response format: json | llm.

Include Chiron gate mapping in the calculation.

Include Black Moon Lilith gate mapping in the calculation.

When true, a high-fidelity Human Design bodygraph SVG/PNG is embedded in the response alongside the data payload. Adds 2 credits to the request cost.

Birth latitude in decimal degrees. Seeds timezone resolution for birth_datetime_local — with longitude it selects the IANA zone and lets the historical-correction overlay apply — and, where the endpoint renders one, positions the mandala house ring. Not read at all when birth_datetime_utc is used.

Birth longitude in decimal degrees. Seeds timezone resolution for birth_datetime_local — with latitude it selects the IANA zone and lets the historical-correction overlay apply — and, where the endpoint renders one, positions the mandala house ring. Not read at all when birth_datetime_utc is used.