Markets
Get Price-to-Beat (PTB) values for crypto up/down contracts
Returns the oracle price captured at the start of each requested window
(“the price to beat”), nested {window: {symbol: {...}}}. windows is
comma-separated; each must be one of 1m, 5m, 15m, 1h, 4h, 1d. Window
starts align to clean ET boundaries. Only window PTB sources are
accepted: binance, kalshi_cfbenchmarks, polymarket_twap30,
polymarket_twap60. Contract-tick series (polymarket_chainlink,
hyperliquid_mark) are not window benchmarks and are rejected. When
source is omitted, the server picks Binance or a legacy TWAP series
from the oracle_twap_feed flag. Binance may fall back to an external
market-data source for missing symbols; venue series do not. Symbols
with no resolvable price for a window are omitted (not null).
GET
/
markets
/
crypto
/
ptb
Get Price-to-Beat (PTB) values for crypto up/down contracts
curl --request GET \
--url https://data.kairos.trade/markets/crypto/ptb \
--header 'X-Api-Key: <api-key>' \
--header 'X-Api-Secret: <api-key>' \
--header 'X-Client-Id: <api-key>'import requests
url = "https://data.kairos.trade/markets/crypto/ptb"
headers = {
"X-Client-Id": "<api-key>",
"X-Api-Key": "<api-key>",
"X-Api-Secret": "<api-key>"
}
response = requests.get(url, headers=headers)
print(response.text)const options = {
method: 'GET',
headers: {
'X-Client-Id': '<api-key>',
'X-Api-Key': '<api-key>',
'X-Api-Secret': '<api-key>'
}
};
fetch('https://data.kairos.trade/markets/crypto/ptb', 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/markets/crypto/ptb",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"X-Api-Key: <api-key>",
"X-Api-Secret: <api-key>",
"X-Client-Id: <api-key>"
],
]);
$response = curl_exec($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/markets/crypto/ptb"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("X-Client-Id", "<api-key>")
req.Header.Add("X-Api-Key", "<api-key>")
req.Header.Add("X-Api-Secret", "<api-key>")
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/markets/crypto/ptb")
.header("X-Client-Id", "<api-key>")
.header("X-Api-Key", "<api-key>")
.header("X-Api-Secret", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://data.kairos.trade/markets/crypto/ptb")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["X-Client-Id"] = '<api-key>'
request["X-Api-Key"] = '<api-key>'
request["X-Api-Secret"] = '<api-key>'
response = http.request(request)
puts response.read_body{}{
"detail": "Invalid window: 30m. Must be one of: ['15m', '1d', '1h', '1m', '4h', '5m']"
}{
"detail": "Not authenticated"
}{
"detail": "Invite required"
}{
"detail": [
{}
]
}{
"error": "Rate limit exceeded: 100 per 1 minute"
}{
"detail": "Failed to fetch price-to-beat values"
}Authorizations
Credential client id (kairos_ck_...). Must be sent together with X-Api-Key and X-Api-Secret.
64-char hex API key.
64-char hex API secret.
Query Parameters
Comma-separated windows. Each must be one of 1m, 5m, 15m, 1h, 4h, 1d.
ET-aligned window source. New market clients should pass this explicitly. TWAP30 remains for legacy 1m overlays.
Available options:
binance, kalshi_cfbenchmarks, polymarket_twap30, polymarket_twap60 Response
PTB values nested by window then symbol.
Keyed by window (1m/5m/15m/1h/4h/1d), each value keyed by symbol.
Keyed by oracle symbol (btc-usd/eth-usd/sol-usd/xrp-usd). A symbol is omitted entirely if no price could be resolved for this window.
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Get Price-to-Beat (PTB) values for crypto up/down contracts
curl --request GET \
--url https://data.kairos.trade/markets/crypto/ptb \
--header 'X-Api-Key: <api-key>' \
--header 'X-Api-Secret: <api-key>' \
--header 'X-Client-Id: <api-key>'import requests
url = "https://data.kairos.trade/markets/crypto/ptb"
headers = {
"X-Client-Id": "<api-key>",
"X-Api-Key": "<api-key>",
"X-Api-Secret": "<api-key>"
}
response = requests.get(url, headers=headers)
print(response.text)const options = {
method: 'GET',
headers: {
'X-Client-Id': '<api-key>',
'X-Api-Key': '<api-key>',
'X-Api-Secret': '<api-key>'
}
};
fetch('https://data.kairos.trade/markets/crypto/ptb', 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/markets/crypto/ptb",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"X-Api-Key: <api-key>",
"X-Api-Secret: <api-key>",
"X-Client-Id: <api-key>"
],
]);
$response = curl_exec($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/markets/crypto/ptb"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("X-Client-Id", "<api-key>")
req.Header.Add("X-Api-Key", "<api-key>")
req.Header.Add("X-Api-Secret", "<api-key>")
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/markets/crypto/ptb")
.header("X-Client-Id", "<api-key>")
.header("X-Api-Key", "<api-key>")
.header("X-Api-Secret", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://data.kairos.trade/markets/crypto/ptb")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["X-Client-Id"] = '<api-key>'
request["X-Api-Key"] = '<api-key>'
request["X-Api-Secret"] = '<api-key>'
response = http.request(request)
puts response.read_body{}{
"detail": "Invalid window: 30m. Must be one of: ['15m', '1d', '1h', '1m', '4h', '5m']"
}{
"detail": "Not authenticated"
}{
"detail": "Invite required"
}{
"detail": [
{}
]
}{
"error": "Rate limit exceeded: 100 per 1 minute"
}{
"detail": "Failed to fetch price-to-beat values"
}