API ReferenceLeagues
Similar Leagues
Find leagues similar to a given league using vector similarity
Similar Leagues
Find leagues similar to a given league based on characteristics, metrics, and attributes.
Endpoint
GET /v1/leagues/{league_id}/similarAuthentication
Required. Use Bearer token or X-API-Key header.
Path Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
league_id | string | Yes | Unique league identifier |
Query Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
limit | integer | No | Number of results to return (default: 10, max: 50) |
Example Request
import { AltSportsData } from 'altsportsdata';
const client = new AltSportsData({ apiKey: 'YOUR_API_KEY' });
const similar = await client.leagues.similar('pbr', { limit: 5 });
console.log(similar.data);from altsportsdata import AltSportsData
client = AltSportsData(api_key='YOUR_API_KEY')
similar = client.leagues.similar('pbr', limit=5)
print(similar.data)curl -X GET "https://api.altsportsdata.com/v1/leagues/pbr/similar?limit=5" \
-H "Authorization: Bearer YOUR_API_KEY"const url = new URL("https://api.altsportsdata.com/v1/leagues/pbr/similar");
url.searchParams.append("limit", "5");
const response = await fetch(url, {
headers: {
"Authorization": "Bearer YOUR_API_KEY"
}
});
const similar = await response.json();
console.log(similar.data);require 'net/http'
require 'json'
uri = URI('https://api.altsportsdata.com/v1/leagues/pbr/similar')
uri.query = URI.encode_www_form({ limit: 5 })
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
request = Net::HTTP::Get.new(uri)
request['Authorization'] = 'Bearer YOUR_API_KEY'
response = http.request(request)
data = JSON.parse(response.body)<?php
$url = 'https://api.altsportsdata.com/v1/leagues/pbr/similar?limit=5';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Authorization: Bearer YOUR_API_KEY'
]);
$response = curl_exec($ch);
$data = json_decode($response, true);
curl_close($ch);
?>using System;
using System.Net.Http;
using System.Threading.Tasks;
var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer YOUR_API_KEY");
var url = "https://api.altsportsdata.com/v1/leagues/pbr/similar?limit=5";
var response = await client.GetStringAsync(url);
Console.WriteLine(response);package main
import (
"fmt"
"io"
"net/http"
)
func main() {
client := &http.Client{}
url := "https://api.altsportsdata.com/v1/leagues/pbr/similar?limit=5"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Set("Authorization", "Bearer YOUR_API_KEY")
resp, _ := client.Do(req)
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
fmt.Println(string(body))
}import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class SimilarLeagues {
public static void main(String[] args) throws Exception {
String urlString = "https://api.altsportsdata.com/v1/leagues/pbr/similar?limit=5";
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Authorization", "Bearer YOUR_API_KEY");
BufferedReader in = new BufferedReader(
new InputStreamReader(conn.getInputStream())
);
String line;
StringBuilder response = new StringBuilder();
while ((line = in.readLine()) != null) {
response.append(line);
}
in.close();
System.out.println(response.toString());
}
}Example Response
{
"data": [
{
"league_id": "supermotocross",
"league_name": "SuperMotocross World Championship",
"similarity_score": 0.89,
"common_attributes": ["motorsport", "individual_sport", "professional", "T2_tier"],
"tier": "T2",
"sport": "Supercross/Motocross"
},
{
"league_id": "nll",
"league_name": "National Lacrosse League",
"similarity_score": 0.82,
"common_attributes": ["professional", "T2_tier", "north_american"],
"tier": "T2",
"sport": "Lacrosse"
},
{
"league_id": "masl",
"league_name": "Major Arena Soccer League",
"similarity_score": 0.78,
"common_attributes": ["professional", "T2_tier", "team_sport"],
"tier": "T2",
"sport": "Indoor Soccer"
}
],
"meta": {
"total": 3,
"page": 1,
"limit": 5,
"has_more": false,
"api_version": "v1",
"timestamp": "2026-03-07T06:41:00Z"
}
}Response Fields
| Field | Type | Description |
|---|---|---|
league_id | string | Unique league identifier |
league_name | string | League name |
similarity_score | number | Similarity coefficient (0-1) |
common_attributes | array | Shared characteristics |
tier | string | Tier classification |
sport | string | Sport type |