Virtual numbers

How SMS verification works for Klarna

SveaSMS gives you a direct path to send bulk SMS in minutes — with tier-1 routing, real-time analytics and no KYC delay. How SMS verification works for Klarna shows exactly how to get started.

  • Numbers in 190+ countries — live stock
  • No KYC, no SIM card, no contract
  • Codes appear in your inbox in real time
  • Automatic refund if no code arrives
  • Pay with crypto or card
  • Same account as bulk SMS and the API
01

Automation and integrations

Trigger SMS from Zapier, Make, n8n, HubSpot, Shopify, WooCommerce or your own backend. Build drip campaigns, welcome flows, abandoned cart flows and OTP instantly.

02

Your own Sender ID

Set any sender name you want, up to 11 alphanumeric characters. No pre-approval, no waiting, no follow-up questions. Change Sender ID between campaigns or use different IDs per segment for A/B testing.

03

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.

04

Compliance without friction

Automatic opt-out via STOP/AVSLUTA, quiet hours per market and content warnings that catch carrier-risk content before you send.

Frequently asked questions

Can I schedule campaigns?

Yes. From the dashboard or API, including timezone-aware scheduling and batch sends.

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.

How is opt-out handled?

Automatically through STOP/AVSLUTA — the customer is placed on a per-sender blocklist. You can also whitelist.

Is SMS content logged?

Metadata is logged for DLR and support. Message content can be pseudonymized or deleted on request.

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.

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Ready to send?

Sign up, top up your balance and send your first SMS. No KYC, no waiting.