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API Docs Stage 1 · REST & MCP calculation reference (`/api/v1`)
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Endpoint

Progressions

Secondary progressions. birth_time is required on the API even though some product forms treat time as optional.

POST /api/v1/progressions

Parameters

Field Required Notes
birth_date yes YYYY-MM-DD
birth_time yes HH:MM or HH:MM:SS
latitude, longitude yes Coordinates
target_age no Default 30
  • Result: progressed_date, age, angles, planets, progressed_to_natal_aspects, internal_aspects, plus the standard envelope.