curl --request GET \
  --url https://synthesis.trade/api/v1/markets/similar-pairs

import requests

url = "https://synthesis.trade/api/v1/markets/similar-pairs"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://synthesis.trade/api/v1/markets/similar-pairs', 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://synthesis.trade/api/v1/markets/similar-pairs",
  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://synthesis.trade/api/v1/markets/similar-pairs"

	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://synthesis.trade/api/v1/markets/similar-pairs")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://synthesis.trade/api/v1/markets/similar-pairs")

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

{
  "success": true,
  "response": [
    {
      "source": {
        "venue": "polymarket",
        "event": {
          "event_id": 12345,
          "title": "Will Bitcoin reach $100k by end of 2025?",
          "slug": "will-bitcoin-reach-100k-by-end-of-2025",
          "description": "This market resolves to Yes if spot Bitcoin trades at or above $100,000 before 2025 ends.",
          "image": "https://example.com/bitcoin.png",
          "tags": [
            "crypto",
            "bitcoin"
          ],
          "labels": [
            "crypto",
            "macro"
          ],
          "neg_risk": false,
          "active": true,
          "liquidity": "1500000",
          "volume": "5000000",
          "volume24hr": "250000",
          "volume1wk": "900000",
          "volume1mo": "2200000",
          "volume1yr": "5000000",
          "live": {
            "live": false,
            "ended": false
          },
          "created_at": "2026-01-01T00:00:00",
          "updated_at": "2026-01-01T00:00:00",
          "ends_at": "2026-12-31T23:59:59"
        },
        "markets": [
          {
            "event_id": 12345,
            "condition_id": "0xbd71b43bb47eb60dbcb41fa25df2a0ed4da612873d6e0447a2c730bd4cc25910",
            "question": "Will Bitcoin reach $100k?",
            "outcome": "Yes",
            "slug": "will-bitcoin-reach-100k-yes",
            "description": "Buy Yes if you think Bitcoin will trade at or above $100,000 before market expiry.",
            "image": "https://example.com/bitcoin-market.png",
            "left_outcome": "Yes",
            "right_outcome": "No",
            "left_price": "0.65",
            "right_price": "0.35",
            "left_token_id": "21742633143463906290569050155826241533067272736897614950488156847949938836455",
            "right_token_id": "48572956138472615938471625938471659384716593847165938471659384716593847165938",
            "winner_token_id": "",
            "active": true,
            "resolved": false,
            "fees": true,
            "decimals": 6,
            "liquidity": "1500000",
            "volume": "5000000",
            "volume24hr": "250000",
            "volume1wk": "900000",
            "volume1mo": "2200000",
            "volume1yr": "5000000",
            "rewards": {
              "rewards": false
            },
            "created_at": "2026-01-01T00:00:00",
            "updated_at": "2026-01-01T00:00:00",
            "ends_at": "2026-12-31T23:59:59"
          }
        ],
        "market_id": "0xbd71b43bb47eb60dbcb41fa25df2a0ed4da612873d6e0447a2c730bd4cc25910"
      },
      "target": {
        "venue": "kalshi",
        "event": {
          "series_id": "KXBTC",
          "event_id": "KXBTC-25",
          "title": "Bitcoin above $100,000 on Dec 31?",
          "sub_title": "Expires at year end",
          "slug": "bitcoin-above-100000-on-dec-31",
          "image": "https://example.com/kalshi-bitcoin.png",
          "tags": [
            "crypto",
            "bitcoin"
          ],
          "labels": [
            "crypto",
            "macro"
          ],
          "category": "Crypto",
          "active": true,
          "liquidity": "800000",
          "volume": "3000000",
          "live": {
            "is_active": true
          },
          "created_at": "2026-01-01T00:00:00",
          "updated_at": "2026-01-01T00:00:00",
          "ends_at": "2026-12-31T23:59:59"
        },
        "markets": [
          {
            "series_id": "KXBTC",
            "event_id": "KXBTC-25",
            "market_id": "KXBTC-25-T100000",
            "kalshi_id": "T100000",
            "title": "Bitcoin above $100,000?",
            "outcome": "Yes",
            "description": "Resolves Yes if Bitcoin settles above $100,000 on expiration.",
            "image": "https://example.com/kalshi-bitcoin-market.png",
            "left_outcome": "Yes",
            "right_outcome": "No",
            "left_price": "0.58",
            "right_price": "0.42",
            "left_token_id": "BRjpCHtyQLeSRWyE1yTdBQbhLkny5oEnveRijBjRoiA",
            "right_token_id": "F4r2GpoNU8MBMdKqP6MCBzKEHe2Mt8s5qm4GrFcJQnbJ",
            "winner_token_id": "",
            "active": true,
            "resolved": false,
            "claimable": false,
            "liquidity": "800000",
            "open_interest": "1200000",
            "volume": "3000000",
            "volume24hr": "175000",
            "dflow": {
              "enabled": true
            },
            "created_at": "2026-01-01T00:00:00",
            "updated_at": "2026-01-01T00:00:00",
            "ends_at": "2026-12-31T23:59:59"
          }
        ],
        "market_id": "KXBTC-25-T100000"
      },
      "distance": 0.42,
      "arbitrage": 0.02,
      "volume": 3000000,
      "liquidity": 800000,
      "ends_at": "2026-12-31T23:59:59",
      "created_at": "2026-01-01T00:00:00"
    }
  ]
}