ephemeris

Build dispositor tree from planetary placements

Build a dispositor tree from a set of planetary sign placements. Each planet is "disposed" by the ruler of the sign it occupies. The algorithm walks these rulership chains to identify final dispositors (planets ruling their own sign) and mutual receptions (pairs disposing each other).

No ephemeris kernel required — pass in pre-computed sign placements. Signs are 0-based in the API (0=Aries … 11=Pisces) and converted internally.

🤖 Agent-first endpoint — pure deterministic math, no ephemeris required.

post/ephemeris/dispositor-tree

Request

  • Base URL: https://api.openephemeris.com
  • URL: https://api.openephemeris.com/ephemeris/dispositor-tree
  • Auth: one of:
    • HTTP bearer
    • API key in header X-OpenEphemeris-API-Key
    • API key in header X-API-Key
    • API key in header X-Service-Key

Query parameters

output_modestring nullable

Deprecated: use preset+format. Accepts full|simple|llm.

formatstring

Headers

authorizationstring nullable
X-API-Keystring nullable
X-OpenEphemeris-API-Keystring nullable
apikeystring nullable

Request body

Response

Successful Response

calculation_metadataobject

Processing metadata

successboolean required

Changes

No recorded changes to this operation across all 1 revision of this API.