Sports
Top live/upcoming sports markets matched across Polymarket and Kalshi
Finds games that have BOTH a Polymarket and a Kalshi entry in the cross-venue sports match cache, drops any entry whose embedded date is older than yesterday (UTC), enriches each surviving Kalshi side with a live volume figure (volume_1h falling back to volume_total), sorts descending by that volume, and truncates to limit. Title and tokenId come from the cached match record itself, not from a live provider call. Responses are cacheable at the edge.
GET
/
sports
/
trending-matched
Top live/upcoming sports markets matched across Polymarket and Kalshi
curl --request GET \
--url https://data.kairos.trade/sports/trending-matchedimport requests
url = "https://data.kairos.trade/sports/trending-matched"
response = requests.get(url)
print(response.text)const options = {method: 'GET'};
fetch('https://data.kairos.trade/sports/trending-matched', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://data.kairos.trade/sports/trending-matched",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://data.kairos.trade/sports/trending-matched"
req, _ := http.NewRequest("GET", url, nil)
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://data.kairos.trade/sports/trending-matched")
.asString();require 'uri'
require 'net/http'
url = URI("https://data.kairos.trade/sports/trending-matched")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
response = http.request(request)
puts response.read_body{
"matches": [
{
"slug": "nba-lal-bos-2026-01-15",
"title": "Lakers vs Celtics",
"image": "<string>",
"icon": "<string>",
"volume1h": 48213.5,
"polymarket": {
"marketId": "nba-lal-bos-2026-01-15",
"tokenId": "10897234...",
"price": 0.62
},
"kalshi": {
"marketId": "KXNBAGAME-26JAN15LALBOS-LAL",
"eventTicker": "KXNBAGAME-26JAN15LALBOS",
"price": 0.6
}
}
],
"count": 5
}{
"detail": [
{}
]
}{
"error": "Rate limit exceeded: 100 per 1 minute"
}Query Parameters
Maximum number of matched markets to return, sorted by Kalshi volume descending.
Required range:
1 <= x <= 20Response
Trending cross-provider matched markets. Returns {"matches": [], "count": 0} immediately if the matching cache is empty.
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Top live/upcoming sports markets matched across Polymarket and Kalshi
curl --request GET \
--url https://data.kairos.trade/sports/trending-matchedimport requests
url = "https://data.kairos.trade/sports/trending-matched"
response = requests.get(url)
print(response.text)const options = {method: 'GET'};
fetch('https://data.kairos.trade/sports/trending-matched', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://data.kairos.trade/sports/trending-matched",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://data.kairos.trade/sports/trending-matched"
req, _ := http.NewRequest("GET", url, nil)
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://data.kairos.trade/sports/trending-matched")
.asString();require 'uri'
require 'net/http'
url = URI("https://data.kairos.trade/sports/trending-matched")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
response = http.request(request)
puts response.read_body{
"matches": [
{
"slug": "nba-lal-bos-2026-01-15",
"title": "Lakers vs Celtics",
"image": "<string>",
"icon": "<string>",
"volume1h": 48213.5,
"polymarket": {
"marketId": "nba-lal-bos-2026-01-15",
"tokenId": "10897234...",
"price": 0.62
},
"kalshi": {
"marketId": "KXNBAGAME-26JAN15LALBOS-LAL",
"eventTicker": "KXNBAGAME-26JAN15LALBOS",
"price": 0.6
}
}
],
"count": 5
}{
"detail": [
{}
]
}{
"error": "Rate limit exceeded: 100 per 1 minute"
}
