The messaging stack your team won't outgrow.
From your first verification code to billions of monthly messages, Lynsms gives you the routing intelligence, compliance controls and developer experience to ship safely.
Everything you need to send safely
A focused set of primitives that work together — without surprises in production.
Global SMS delivery
Direct carrier connections in 200+ countries with intelligent route failover.
Real-time analytics
Live delivery rate, latency and cost-per-route metrics, exportable to your warehouse.
Sender verification
Submit, track and manage Sender IDs and short codes with carrier-side approval status.
Traffic monitoring
Velocity tracking, deduplication and fraud scoring on every outbound batch.
REST API access
A clean HTTP API with idempotency keys and predictable error semantics.
Webhook delivery
Signed callbacks for delivery receipts, inbound messages and balance events.
Delivery reports
Per-message DLR with carrier-level reason codes and granular cost breakdowns.
OTP messaging
Low-latency one-time password delivery on priority routes with rotation protection.
Number validation
HLR lookup confirms portability and carrier before you spend a credit.
Rate limiting
Configurable ceilings per workspace, sender and country with graceful queueing.
Fraud detection
Real-time scoring of suspicious links, spam patterns and unusual velocity.
Team access
Granular roles, scoped API keys and audit logs that map to your access model.
A REST API your team will enjoy
Send a message in one request. No SDK required.
# Send an SMS via the Lynsms API curl https://api.lynsms.com/v1/messages \ -H "Authorization: Bearer $LYNSMS_API_KEY" \ -H "Content-Type: application/json" \ -H "Idempotency-Key: msg_8f2j" \ -d '{ "from": "Lynsms", "to": "+4790000000", "text": "Your verification code is 482910.", "type": "otp" }' # Response { "id": "msg_01HF3K9TZJ...", "status": "queued", "cost": 0.007, "route": "premium-eu", "created": 1747000000 }
Start sending in five minutes.
Create a free workspace, generate an API key and send your first message. No credit card required.