Subfield

curl -X GET "https://api.hexagraph.in/subfields/1702"

fetch("https://api.hexagraph.in/subfields/1702")
  .then(response => response.json())
  .then(data => console.log(data));

import requests

response = requests.get("https://api.hexagraph.in/subfields/1702")
print(response.json())

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	resp, err := http.Get("https://api.hexagraph.in/subfields/1702")
	if err != nil {
		fmt.Println("Error:", err)
		return
	}
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

{
  "id": 2202,
  "name": "Aerospace Engineering",
  "description": "branch of engineering",
  "ids": {
    "wikidata": "http://www.wikidata.org/entity/Q3798668",
    "wikipedia": "https://en.wikipedia.org/wiki/Aerospace_Engineering"
  },
  "display_name_alternatives": [
    "aeronautical engineering"
  ],
  "field": {
    "id": "22",
    "name": "Engineering"
  },
  "domain": {
    "id": "3",
    "name": "Physical Sciences"
  },
  "siblings": [
    {
      "id": 1100,
      "name": "General Agricultural and Biological Sciences"
    },
  ],
  "topics": [
    {
      "id": "HX_T10069",
      "name": "Antenna Design and Analysis"
    },
  ],
  "outputs_count": 27363527,
  "cited_by_count": 17591690,
  "updated_date": "2026-08-05T03:01:40",
  "created_date": "2024-01-23T15:19:48"
}

{
  "statusCode": 404,
  "message": "Subfield with ID 9999 not found",
  "error": "Not Found"
}

{
  "statusCode": 429,
  "error": "Too Many Requests",
  "message": "IP rate limit exceeded (max 30 requests per minute). Please try again in 42 seconds (at 11:40:32 UTC).",
  "reset_in_seconds": 42,
  "reset_at_utc": "2026-08-05T11:40:32.000Z"
}