Developer-friendly API
Simple REST API with idempotency keys, webhooks for DLR and incoming SMS, plus examples for Node.js, Python, PHP, Go and Ruby. Send your first SMS with curl in under 60 seconds.
NDAX SMS delivery in El Salvador
SveaSMS gives you a direct path to send bulk SMS in minutes — with tier-1 routing, real-time analytics and no KYC delay. NDAX SMS delivery in El Salvador shows exactly how to get started.
- Local delivery in El Salvador (+503)
- Tuned for NDAX traffic patterns — bursty, retry-safe
- Sender ID pre-cleared for the market
- Real-time DLR — see every code that lands
- Failover across 3+ carriers per country
Transparent pricing
One price per SMS, no monthly fee, no lock-in contract. Balance never expires and you see the exact campaign cost before you press send.
Compliance without friction
Automatic opt-out via STOP/AVSLUTA, quiet hours per market and content warnings that catch carrier-risk content before you send.
GDPR-safe
Data is stored in the EU, with no subprocessors outside the EEA without explicit consent. A DPA is available on request and opt-out is handled automatically.
Frequently asked questions
Can I schedule campaigns?
Yes. From the dashboard or API, including timezone-aware scheduling and batch sends.
Can I send OTP?
Yes. Low latency, high queue priority and separate throughput limits for transactional SMS.
Which countries do you cover?
Primarily Sweden through tier-1 direct connections. Nordic countries and Europe are available through partner networks.
Do I need KYC or verification?
No. Sign up, top up and send. No forms, no application, no waiting.
How is opt-out handled?
Automatically through STOP/AVSLUTA — the customer is placed on a per-sender blocklist. You can also whitelist.
How do I pay?
Crypto (BTC, ETH, USDT) via NOWPayments or card via Banxa. Balance is active as soon as payment is confirmed.