SMS Gateway Spain
The Smstools SMS gateway connects your software directly to the mobile network. Direct connections with operators, 99.99% uptime SLA and pay-as-you-go rates — no SIM card, no subscription.
- 2000+ operadores
- Enrutamiento inteligente
- SLA 99,99% uptime
What is an SMS gateway?
An SMS gateway is the connection point between your software or system and the mobile network. Via the gateway your application sends SMS messages without a SIM card or GSM modem — purely via the internet. Technically, an SMS gateway uses the SMPP protocol to communicate with operators. You connect your software to our gateway via our SMS API. Smstools offers direct connections with operators and 2000+ operators worldwide.
SMS gateway vs SMS API — what is the difference?
At Smstools you use our REST API to connect to our SMS gateway infrastructure. You do not need to manage the gateway yourself. View our SMS API →
How does the Smstools SMS gateway work?
When you send an SMS via our API, our gateway automatically processes the message: validation, route selection and direct delivery to the operator. You receive a delivery report via webhook as soon as the message is delivered.
HTTP POST to API
Your software makes an HTTP POST to our REST API
Gateway processes message
Our gateway processes the message (routing, format, validation)
Operator connection
Direct connection to the operator
Delivered + delivery report
Message delivered — delivery report sent back via webhook
Why use the Smstools SMS gateway?
Direct routes to Telefónica, Vodafone ES y Orange ES for maximum deliverability.
No SIM card, no GSM modem. Your server connects directly via the internet.
The infrastructure scales automatically, from test messages to bulk campaigns.
Redundant infrastructure, 24/7 monitoring, guaranteed availability.
Únete a más de 10,000 clientes satisfechos
Desde 0,025 € por SMS en Spain
- ¡Sin cargos ocultos!
- Solo paga por lo que usas.
- Más de 20 años de experiencia
Connect SMS gateway — via API or software
Not everyone needs to code. Choose the integration that fits your team.
SMS gateway use cases
The Smstools SMS gateway is used by companies that need reliable SMS communication:
- Bulk SMS campaigns — Send thousands of messages simultaneously via the gateway.
- OTP & authentication — Time-sensitive one-time codes delivered via direct operator routes.
- Transactional notifications — Order confirmations, shipping status, payment alerts automatically via the gateway.
- System & server alerts — Critical notifications directly to your team via SMS.
- Email-to-SMS — Send SMS directly from your email client via our Email2SMS integration.
Sus datos de clientes permanecen seguros en Europa
All our servers are located in Europe. GDPR-compliant, with Data Processing Agreement on request.
Frequently asked questions
What is an SMS Gateway?
An SMS Gateway is a platform that connects your application to the mobile network of operators worldwide. Via a simple API you send SMS messages to millions of recipients — without your own telecom infrastructure.
How reliable is the Smstools SMS Gateway?
Smstools guarantees 99.99% uptime via redundant routes, automatic failover and 24/7 monitoring. When failures occur we automatically switch to alternative routes so your messages always arrive.
Which countries does the SMS Gateway support?
The Smstools SMS Gateway has direct connections with over 2000 operators in 180+ countries, including Belgium, Netherlands, Germany, France, the United Kingdom and most European countries.
What does the SMS Gateway cost?
Nuestra SMS gateway tiene conexiones directas con 2000+ operadores en 180+ países. Para Spain, disponemos de rutas directas a Telefónica, Vodafone ES y Orange ES para máxima entregabilidad y velocidad.