SMS API for Saint Lucia: bulk SMS to +1 numbers
Saint Lucia
Calling code +1
- Per SMS segment
- $0.02207
- Messages for $100
- 4,531
- Local language
- English
- Encoding
- GSM-7
What a bulk SMS send to Saint Lucia costs
| Messages | 1 segment | 2 segments |
|---|---|---|
| 1 | $0.02207 | $0.04414 |
| 1,000 | $22.07 | $44.14 |
| 10,000 | $220.70 | $441.40 |
| 100,000 | $2,207.00 | $4,414.00 |
Number format in Saint Lucia
Saint Lucia uses the North American Numbering Plan: +1, a three-digit area code and a seven-digit number, such as +1 758 284 5678. The API reads the area code (758 here) to price the number as Saint Lucia rather than the United States, so keep the full eleven digits in your list.
Alphabet and segments
English text stays inside the GSM-7 alphabet, so one segment to Saint Lucia holds 160 characters and each part of a longer text 153. Watch for curly quotes and emoji copied from other tools: one of them moves the whole text to Unicode at 70 characters per segment, and POST /v1/estimates shows the encoding before you send.
Time zone and timing
Saint Lucia keeps UTC-4 all year with no clock change, so 09:00 in St Lucia is always 13:00 UTC. send_at takes UTC or any ISO 8601 offset, and the console scheduler converts from your own time zone.
Send to Saint Lucia with one request
The answer comes back at once with the message id, the country the number was matched to (LC) and the price. A delivered or failed event follows on your webhook, and a failed message is refunded.
For a list, send the same text to up to 10,000 numbers with POST /v1/batches, or a personal text per number in messages.
curl https://bulksmsapi.cc/v1/messages \
-H "Authorization: Bearer $BULKSMSAPI_KEY" \
-H "Content-Type: application/json" \
-d '{"to": "+17582845678", "text": "Your Northwind code is 482913. It expires in 10 minutes."}'const res = await fetch("https://bulksmsapi.cc/v1/messages", {
method: "POST",
headers: { Authorization: `Bearer ${process.env.BULKSMSAPI_KEY}`, "Content-Type": "application/json" },
body: JSON.stringify({ to: "+17582845678", text: "Your Northwind code is 482913. It expires in 10 minutes." }),
});
console.log(await res.json()); // price: "0.02207", country: "LC"import json, os, urllib.request
req = urllib.request.Request(
"https://bulksmsapi.cc/v1/messages",
data=json.dumps({"to": "+17582845678", "text": "Your Northwind code is 482913. It expires in 10 minutes."}).encode(),
headers={"Authorization": "Bearer " + os.environ["BULKSMSAPI_KEY"], "Content-Type": "application/json", "User-Agent": "northwind-app/1.0"},
method="POST",
)
with urllib.request.urlopen(req) as res:
print(json.load(res)["price"]) # "0.02207"What developers send to Saint Lucia
Booking confirmations
Resorts in Soufrière send SMS confirmations to guests with details about their stay and check-in times.
Delivery updates
Delivery services notify customers in Castries with SMS alerts when their packages are out for delivery.
Event reminders
Event organizers send SMS reminders to attendees in Gros Islet about upcoming concerts or festivals.
Tour updates
Tour companies in Vieux Fort send SMS notifications to participants about changes to tour schedules.
More countries in Caribbean
SMS to Saint Lucia: questions
More answers on accounts, payments and the API are in the FAQ.
How much does it cost to send bulk SMS to Saint Lucia?
How many SMS to Saint Lucia does a $100 top-up send?
How do I write Saint Lucia numbers for the API?
Should messages be in English or Creole?
How to reach tourists effectively?
Start sending to Saint Lucia
Create an account, top up from $40 and send to Saint Lucia at $0.02207 per segment, from the console or with one API call.