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.
Custodial — meaning in crypto
SveaSMS gives you a direct path to send bulk SMS in minutes — with tier-1 routing, real-time analytics and no KYC delay. Custodial — meaning in crypto shows exactly how to get started.
- Definition: The exchange holds your keys — you hold an IOU.
- Used across CEX, DEX, DeFi and OTC contexts
- Watch it in your feed — alert your users on the same event
- SveaSMS: instant SMS the moment your trigger fires
Compliance without friction
Automatic opt-out via STOP/AVSLUTA, quiet hours per market and content warnings that catch carrier-risk content before you send.
Delivery rate that holds
Direct connections to Telia, Telenor, Tre and Tele2 provide stable delivery to Swedish numbers. Real-time DLR shows exactly which SMS were delivered, pending or bounced — nothing sits in dark queues.
Support that answers
We operate from Sweden. Ping us and a technician answers — not a chatbot, not a tier-1 agent escalating. Directly to someone who knows the system.
Frequently asked questions
Can I schedule campaigns?
Yes. From the dashboard or API, including timezone-aware scheduling and batch sends.
How do I pay?
Crypto (BTC, ETH, USDT) via NOWPayments or card via Banxa. Balance is active as soon as payment is confirmed.
Is there an API?
Yes. REST API with examples for Node.js, Python, PHP, Go and Ruby. See /api/rest for documentation.
Do I need KYC or verification?
No. Sign up, top up and send. No forms, no application, no waiting.
Can I send OTP?
Yes. Low latency, high queue priority and separate throughput limits for transactional SMS.
Can I choose any Sender ID?
Yes. Set any sender name you want, up to 11 characters. We do not pre-review Sender IDs for you.