Look up an I Ching hexagram by number or lines, or cast one from a question and ...

{ "method": "GET", "queryParams": { "cast": "Should I start the project?", "date": "2026-10-21" }, "type": "http" }

{ "example": { "asOf": "2026-10-21T00:32:43.845Z", "changingLines": [ 1, 2 ], "degraded": false, "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.", "lineValuesBottomToTop": [ 9, 6 ], "notChecked": [ "the traditional judgments, image texts and line statements (not reproduced: they are copyrighted translations)", "any claim that a cast predicts anything: this is a seeded symbolic draw for cultural or entertainment use" ], "primary": { "chinese": "賁", "english": "Grace", "linesBottomToTop": "101001", "lowerTrigram": { "chinese": "離", "name": "Li", "nature": "Fire" }, "number": 22, "pinyin": "Bi", "symbol": "䷕", "upperTrigram": { "chinese": "艮", "name": "Gen", "nature": "Mountain" } }, "reasons": [ "Each line is three coins: heads 3, tails 2 (6 old yin, 7 young yang, 8 young yin, 9 old yang), taken from a SHA-256 of your text so the cast is repeatable.", "Changing lines (counted from the bottom): 1, 2." ], "relating": { "chinese": "蠱", "english": "Repairing decay", "linesBottomToTop": "011001", "lowerTrigram": { "chinese": "巽", "name": "Xun", "nature": "Wind" }, "number": 18, "pinyin": "Gu", "symbol": "䷑", "upperTrigram": { "chinese": "艮", "name": "Gen", "nature": "Mountain" } }, "source": "King Wen sequence and trigram table (standard arrangement); seeded SHA-256 coin method; computed locally", "summary": "Cast 22 賁 Bi \"Grace\", changing to 18 蠱 Gu.", "verdict": "HEXAGRAM_CAST" }, "type": "json" }