Automating multi-account registration and verification pipelines across Meta, TikTok, Telegram, and Google requires programmatic SMS infrastructure. Relying on manual web dashboards to retrieve verification codes introduces operational latency and throttles account farming throughput. The Nolimit SIM REST API provides enterprise developers with sub-second SMS code retrieval, automated carrier selection, and instant financial ledger accounting.

1. Full Python Async API Implementation
The following production-ready Python script orders a dedicated mobile phone number, polls the carrier gateway for the incoming verification code with exponential backoff, and automatically cancels the transaction if the code is delayed beyond the specified timeout.
import httpx
import asyncio
API_BASE = "https://api.nolimit.shopping/v1/sms"
API_KEY = "Bearer NL_LIVE_SECRET_KEY"
async def verify_service(service_name="facebook", country="us"):
headers = {"Authorization": API_KEY, "Content-Type": "application/json"}
async with httpx.AsyncClient(timeout=30.0) as client:
order_res = await client.post(
f"{API_BASE}/order",
headers=headers,
json={"service": service_name, "country": country}
)
order_data = order_res.json()
if not order_data.get("ok"):
raise Exception(f"Order failed: {order_data.get('error')}")
order_id = order_data["order_id"]
phone_number = order_data["phone"]
print(f"[+] Ordered {phone_number} for {service_name} (Order ID: {order_id})")
for attempt in range(24):
await asyncio.sleep(5)
status_res = await client.get(f"{API_BASE}/status?order_id={order_id}", headers=headers)
status_data = status_res.json()
if status_data.get("status") == "COMPLETED":
otp_code = status_data["code"]
print(f"[✅] OTP Code Received: {otp_code}")
return otp_code
elif status_data.get("status") == "CANCELLED":
raise Exception("Order was cancelled by carrier.")
await client.post(f"{API_BASE}/cancel", headers=headers, json={"order_id": order_id})
return None
asyncio.run(verify_service("facebook", "us"))
2. Zero-Loss Auto-Refund Financial Protection
Every API request to the Nolimit SMS gateway is governed by an ACID-compliant transaction model. Funds are placed in escrow upon number allocation. If no SMS is received within the 10-minute carrier window or if an explicit cancellation is sent, the held funds are released back to your available balance immediately with zero platform penalties.
Developer Notice: Set polling intervals to a minimum of 3 to 5 seconds. Excessive polling (<1s) triggers rate-limiting filters on upstream carrier signaling nodes.


