curl --fail-with-body -s https://rpc-testnet.lumeus.dev \
  -H "Authorization: Bearer $LUMEUS_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"getHealth"}'

// Node 18+. Save as rpc.mjs and run: node rpc.mjs
const rpc = async (method, params) => {
  const res = await fetch('https://rpc-testnet.lumeus.dev', {
    method: 'POST',
    headers: {
      Authorization: `Bearer ${process.env.LUMEUS_API_KEY}`,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({ jsonrpc: '2.0', id: 1, method, params }),
  });
  const body = await res.json();
  if (body.error) throw new Error(`${body.error.data ?? body.error.code}: ${body.error.message}`);
  return body.result;
};

console.log(JSON.stringify(await rpc('getHealth'), null, 2));

import json
import os

import requests


def rpc(method, params=None):
    body = {"jsonrpc": "2.0", "id": 1, "method": method}
    if params is not None:
        body["params"] = params
    res = requests.post(
        "https://rpc-testnet.lumeus.dev",
        json=body,
        headers={"Authorization": f"Bearer {os.environ['LUMEUS_API_KEY']}"},
        timeout=30,
    )
    data = res.json()
    if "error" in data:
        raise RuntimeError(f"{data['error'].get('data')}: {data['error']['message']}")
    return data["result"]


print(json.dumps(rpc("getHealth"), indent=2))

// npm install @stellar/stellar-sdk. Save as sdk.mjs and run: node sdk.mjs
import { rpc } from '@stellar/stellar-sdk';

const server = new rpc.Server('https://rpc-testnet.lumeus.dev', {
  headers: { Authorization: `Bearer ${process.env.LUMEUS_API_KEY}` },
});

console.log(JSON.stringify(await server.getHealth(), null, 2));

# pip install stellar-sdk
import os

from stellar_sdk import SorobanServer
from stellar_sdk.client.requests_client import RequestsClient

# num_retries=0: raise 429/503 at once instead of sleeping through Retry-After.
server = SorobanServer(
    "https://rpc-testnet.lumeus.dev",
    client=RequestsClient(num_retries=0, custom_headers={"Authorization": f"Bearer {os.environ['LUMEUS_API_KEY']}"}),
)

print(server.get_health().model_dump_json(by_alias=True, indent=2))