The easiest platform to launch SMS campaigns for your startup, ecommerce, or new project. No monthly fees — pay only for what you send.
No credit card required · Credits never expire
Clean REST API with Bearer auth. Works with any language or framework.
# Create and send a bulk SMS campaign
curl -X POST https://app.resendsms.com/api/v1/campaigns \
-H "Authorization: Bearer rsms_live_xxxxxxxxxxxx" \
-H "Content-Type: application/json" \
-d '{
"name": "Summer Sale 2025",
"message": "Exclusive deal — 30% off this weekend. Code: SUMMER30 🛍️",
"list_id": "list_abc123",
"sender_id": "MyBrand",
"schedule_at": "2025-06-14T10:00:00Z"
}'
# Response
{
"id": "camp_7fTx9Kz2mQ",
"status": "scheduled",
"recipients": 3842,
"credits_used": 3842,
"scheduled_at": "2025-06-14T10:00:00Z"
}Built for startups, ecommerce, and teams who need reliability at scale.
Send SMS to thousands in a single click. Schedule for the perfect time across any timezone.
Real-time delivery rates, open rates, and campaign performance dashboards out of the box.
Organize contacts into lists. Import via CSV, manage opt-outs, segment by any attribute.
Generate multiple API keys for different apps and environments. Revoke anytime.
Plan campaigns weeks in advance. Precise scheduling down to the minute, any timezone.
Real-time delivery status pushed to your endpoint. Know exactly when each message lands.
From signup to sending SMS in under 5 minutes.
Sign up in under 2 minutes. No credit card required. Works for freelancers, startups, and established businesses.
Top up your balance with any amount starting from $5. Credits never expire. Pay by card or crypto.
Upload your contacts, write your message, set a Sender ID, and hit send. Delivery reports update in real time.
No monthly fees. No subscriptions. Buy credits and they never expire.
Credits never expire · Card & crypto accepted · Instant top-up