Read the relayer nonce (and GSN relay) for an imported Polymarket wallet
The imported-wallet analogue of the deposit-wallet nonce endpoint: returns the relayer nonce and, for a legacy ProxyWallet (sig_type: proxy), the GSN relay address needed to construct the digest the browser signs. For a Gnosis Safe (sig_type: safe) relay is always null.
Fetched server-side purely because Polymarket’s relayer is CORS-blocked from browsers. The response is public information; the ownership check is belt-and-braces, not a secrecy boundary.
Error shape. Most 4xx/5xx here have an empty
text/plainbody; the502cases carry a plain-text reason (relay-payload fetch failed: …/nonce fetch failed: …). Scope and identity failures return the structured envelope. Auth & scope. Requirestrade:executeforpolymarketand identity + wallet ownership. No mutation gate, so a bare session JWT reaches it.
curl --request POST \
--url https://execution.kairos.trade/exchanges/polymarket/imported/relay-info \
--header 'Content-Type: application/json' \
--header 'X-Api-Key: <api-key>' \
--header 'X-Api-Secret: <api-key>' \
--header 'X-Client-Id: <api-key>' \
--data '
{
"user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"turnkey_org_id": "<string>",
"owner_address": "<string>"
}
'import requests
url = "https://execution.kairos.trade/exchanges/polymarket/imported/relay-info"
payload = {
"user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"turnkey_org_id": "<string>",
"owner_address": "<string>"
}
headers = {
"X-Client-Id": "<api-key>",
"X-Api-Key": "<api-key>",
"X-Api-Secret": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'X-Client-Id': '<api-key>',
'X-Api-Key': '<api-key>',
'X-Api-Secret': '<api-key>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
user_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
turnkey_org_id: '<string>',
owner_address: '<string>'
})
};
fetch('https://execution.kairos.trade/exchanges/polymarket/imported/relay-info', 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://execution.kairos.trade/exchanges/polymarket/imported/relay-info",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'user_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
'turnkey_org_id' => '<string>',
'owner_address' => '<string>'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"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"
"strings"
"net/http"
"io"
)
func main() {
url := "https://execution.kairos.trade/exchanges/polymarket/imported/relay-info"
payload := strings.NewReader("{\n \"user_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"turnkey_org_id\": \"<string>\",\n \"owner_address\": \"<string>\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-Client-Id", "<api-key>")
req.Header.Add("X-Api-Key", "<api-key>")
req.Header.Add("X-Api-Secret", "<api-key>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://execution.kairos.trade/exchanges/polymarket/imported/relay-info")
.header("X-Client-Id", "<api-key>")
.header("X-Api-Key", "<api-key>")
.header("X-Api-Secret", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"user_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"turnkey_org_id\": \"<string>\",\n \"owner_address\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://execution.kairos.trade/exchanges/polymarket/imported/relay-info")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-Client-Id"] = '<api-key>'
request["X-Api-Key"] = '<api-key>'
request["X-Api-Secret"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"user_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"turnkey_org_id\": \"<string>\",\n \"owner_address\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"nonce": "<string>",
"relay": "<string>"
}{
"error": "Unauthorized"
}{
"error": "<string>",
"error_details": {
"code": "FUNDS_INSUFFICIENT_USDC",
"message": "<string>",
"actions": [
{
"action": "enable_trading",
"label": "Add Funds",
"primary": true,
"url": "<string>"
}
],
"details": "<string>",
"metadata": {}
},
"code": "<string>"
}{
"error": "<string>",
"error_details": {
"code": "FUNDS_INSUFFICIENT_USDC",
"message": "<string>",
"actions": [
{
"action": "enable_trading",
"label": "Add Funds",
"primary": true,
"url": "<string>"
}
],
"details": "<string>",
"metadata": {}
},
"code": "<string>"
}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.
Body
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curl --request POST \
--url https://execution.kairos.trade/exchanges/polymarket/imported/relay-info \
--header 'Content-Type: application/json' \
--header 'X-Api-Key: <api-key>' \
--header 'X-Api-Secret: <api-key>' \
--header 'X-Client-Id: <api-key>' \
--data '
{
"user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"turnkey_org_id": "<string>",
"owner_address": "<string>"
}
'import requests
url = "https://execution.kairos.trade/exchanges/polymarket/imported/relay-info"
payload = {
"user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"turnkey_org_id": "<string>",
"owner_address": "<string>"
}
headers = {
"X-Client-Id": "<api-key>",
"X-Api-Key": "<api-key>",
"X-Api-Secret": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'X-Client-Id': '<api-key>',
'X-Api-Key': '<api-key>',
'X-Api-Secret': '<api-key>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
user_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
turnkey_org_id: '<string>',
owner_address: '<string>'
})
};
fetch('https://execution.kairos.trade/exchanges/polymarket/imported/relay-info', 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://execution.kairos.trade/exchanges/polymarket/imported/relay-info",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'user_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
'turnkey_org_id' => '<string>',
'owner_address' => '<string>'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"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"
"strings"
"net/http"
"io"
)
func main() {
url := "https://execution.kairos.trade/exchanges/polymarket/imported/relay-info"
payload := strings.NewReader("{\n \"user_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"turnkey_org_id\": \"<string>\",\n \"owner_address\": \"<string>\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-Client-Id", "<api-key>")
req.Header.Add("X-Api-Key", "<api-key>")
req.Header.Add("X-Api-Secret", "<api-key>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://execution.kairos.trade/exchanges/polymarket/imported/relay-info")
.header("X-Client-Id", "<api-key>")
.header("X-Api-Key", "<api-key>")
.header("X-Api-Secret", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"user_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"turnkey_org_id\": \"<string>\",\n \"owner_address\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://execution.kairos.trade/exchanges/polymarket/imported/relay-info")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-Client-Id"] = '<api-key>'
request["X-Api-Key"] = '<api-key>'
request["X-Api-Secret"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"user_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"turnkey_org_id\": \"<string>\",\n \"owner_address\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"nonce": "<string>",
"relay": "<string>"
}{
"error": "Unauthorized"
}{
"error": "<string>",
"error_details": {
"code": "FUNDS_INSUFFICIENT_USDC",
"message": "<string>",
"actions": [
{
"action": "enable_trading",
"label": "Add Funds",
"primary": true,
"url": "<string>"
}
],
"details": "<string>",
"metadata": {}
},
"code": "<string>"
}{
"error": "<string>",
"error_details": {
"code": "FUNDS_INSUFFICIENT_USDC",
"message": "<string>",
"actions": [
{
"action": "enable_trading",
"label": "Add Funds",
"primary": true,
"url": "<string>"
}
],
"details": "<string>",
"metadata": {}
},
"code": "<string>"
}
