curl --request GET \
--url https://nexus.gerowallet.io/api/network/info \
--header 'X-Api-Key: <api-key>'import requests
url = "https://nexus.gerowallet.io/api/network/info"
headers = {"X-Api-Key": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'X-Api-Key': '<api-key>'}};
fetch('https://nexus.gerowallet.io/api/network/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://nexus.gerowallet.io/api/network/info",
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>"
],
]);
$response = curl_exec($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://nexus.gerowallet.io/api/network/info"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("X-Api-Key", "<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://nexus.gerowallet.io/api/network/info")
.header("X-Api-Key", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://nexus.gerowallet.io/api/network/info")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["X-Api-Key"] = '<api-key>'
response = http.request(request)
puts response.read_body""nullnullGet Cardano network info and supply
Retrieves static network / Shelley-genesis parameters such as network magic, system start, epoch length, slot timing and consensus settings. These values are immutable per network.
curl --request GET \
--url https://nexus.gerowallet.io/api/network/info \
--header 'X-Api-Key: <api-key>'import requests
url = "https://nexus.gerowallet.io/api/network/info"
headers = {"X-Api-Key": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'X-Api-Key': '<api-key>'}};
fetch('https://nexus.gerowallet.io/api/network/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://nexus.gerowallet.io/api/network/info",
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>"
],
]);
$response = curl_exec($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://nexus.gerowallet.io/api/network/info"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("X-Api-Key", "<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://nexus.gerowallet.io/api/network/info")
.header("X-Api-Key", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://nexus.gerowallet.io/api/network/info")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["X-Api-Key"] = '<api-key>'
response = http.request(request)
puts response.read_body""nullnullAuthorizations
API key (programmatic access — recommended)
Send your API key in the X-Api-Key header. Keys start with nxs_ and are
created in the dashboard (or via POST /api/keys with a session JWT).
Each key is scoped to one chain and one network (for example
CARDANO_MAINNET), fixed at creation time. It cannot query a different network
on the same chain, and it cannot query a different chain at all. A mismatched
network parameter returns 400 Network Mismatch. Create one key per chain
and network under the same account.
This is the credential most integrations should use.
Query Parameters
Accepts either the value listed here (CARDANO_MAINNET) or its kebab-case alias (cardano-mainnet); matching is case-insensitive. Omit it and the network is taken from the API key. A value that disagrees with the key's own network returns 400 Network Mismatch.
CARDANO_MAINNET, CARDANO_PREPROD, CARDANO_PREVIEW, APEX_PRIME_MAINNET, APEX_VECTOR_MAINNET, APEX_VECTOR_TESTNET, MIDNIGHT_MAINNET, MIDNIGHT_PREPROD, MIDNIGHT_STAGENET, BITCOIN_MAINNET, BITCOIN_TESTNET4 Response
Successfully retrieved network info
Static network / genesis parameters for a blockchain network
Network magic identifier
764824073
Genesis system start time (Unix timestamp in seconds)
1506203091
Number of slots in an epoch
432000
Slot duration in seconds
1
Number of slots per KES period
129600
Maximum number of KES key evolutions
62
Security parameter (k)
2160
Active slots coefficient (f)
0.05
Number of nodes required to agree on a protocol update
5
Maximum lovelace supply
"45000000000000000"