SMS API
A carrier-grade SMS API with smart routing, delivery receipts and two-way messaging across 190+ countries.
SMS is still the highest-open-rate channel on earth — when it's delivered. WeZend's SMS API routes each message over the most reliable, cost-effective path, gives you real-time delivery receipts, and handles inbound replies as first-class events you can automate on. Add sender-ID management, link shortening with click tracking, and built-in compliance, and you have an SMS stack that scales from your first message to millions per hour.
Benefits
Why it matters
Higher delivery rates
Cost- and reliability-aware routing across multiple carriers and direct SMPP binds maximises deliverability per region.
Two-way messaging
Inbound replies become events you can route into journeys, support queues or AI agents.
Transparent per-route cost
See the exact vendor cost and your margin per route — no opaque bundled pricing.
Capabilities
What you can do
Sender ID & number management
Alphanumeric sender IDs, long codes and short codes managed per country and use case.
Link shortening + click tracking
Automatic branded short links with per-recipient click analytics.
Bulk & transactional
Send one-off OTPs or millions of campaign messages with the same endpoint and rate controls.
Delivery Inspector
Drill into any message to see carrier-level status, retries and the exact failure reason.
API example
Build it in minutes
import { WeZend } from "@wezend/sdk"; const wezend = new WeZend(process.env.WEZEND_API_KEY); await wezend.messages.send({ to: "+4512345678", channel: "sms", from: "WeZendShop", text: "Your code is 4821. It expires in 5 minutes.",});Frequently asked questions
How many countries do you cover?
190+ countries with local routing and compliance handling. Coverage and per-route pricing are visible in your dashboard.
Do you support OTP / verification?
Yes — low-latency transactional routes are prioritised for one-time passwords, with delivery analytics per route.
Related
Omnichannel Messaging
Reach customers on SMS, RCS, WhatsApp, email, voice and push through a single API with automatic failover.
WhatsApp Business
Official WhatsApp Cloud API access with templates, interactive buttons, media and conversational automation.
AI Agents & Automation
AI agents that answer conversations, copilots that draft campaigns, and predictive models that pick the next best action.
One platform. Every customer interaction.
Replace your patchwork of messaging APIs, CDP and automation tools with a single engagement platform built for scale.
No credit card required · EU data residency · 99.99% uptime SLA