All APIs / I-Ching Oracle API

I-Ching Oracle API

64 hexagrams, 384 changing lines — the 3,000-year-old Chinese oracle.

Cast the I-Ching with a single call: 6-line hexagram generation with moving lines and transformations, daily hexagram, hexagram lookup by line pattern, plus the complete 64-hexagram and 8-trigram catalogs.

<20ms typical 9 endpoints included in every plan Explore in API reference

Featured endpoint

POST /v1/iching

Cast an I-Ching hexagram

Casts six lines with changing lines and the transformed hexagram.

What you get

  • ✦6-line casts with changing lines and transformed hexagram
  • ✦Daily hexagram with changing-line reading
  • ✦Lookup by binary line pattern
  • ✦64 hexagram + 8 trigram catalogs

One call, structured JSON

curl -X POST 'https://astro-vibe-engine.gauravapproved.workers.dev/v1/iching' \ \
  -H 'X-API-Key: av_YOUR_KEY' \ \
  -H 'Content-Type: application/json'