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.
Curve SMS for KYC verification codes
SveaSMS gives you a direct path to send bulk SMS in minutes — with tier-1 routing, real-time analytics and no KYC delay. Curve SMS for KYC verification codes shows exactly how to get started.
- Reach Curve users across 200+ countries
- Send KYC verification codes in under 3 seconds
- Any Sender ID — brand, shortcode or numeric
- REST API, webhooks, dashboard or CSV
- Crypto and card top-ups — pay in USDT, USDC, BTC or SEPA
Scales with you
500 MPS by default, upgradeable on demand. From your first OTP to millions of marketing SMS per day — same infrastructure, same API, no migration.
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.
Do I need KYC or verification?
No. Sign up, top up and send. No forms, no application, no waiting.
How fast are SMS delivered?
Usually within seconds through direct connections to Swedish operators. Delivery rate above 99%.
Which countries do you cover?
Primarily Sweden through tier-1 direct connections. Nordic countries and Europe are available through partner networks.
Is there an API?
Yes. REST API with examples for Node.js, Python, PHP, Go and Ruby. See /api/rest for documentation.