Send bulk SMS to your customers from the dashboard (with Excel or CSV) or from our SMS API for Spain and the rest of the world: a custom sender name with your brand, real-time delivery confirmation (DLR), published rates by country and a prepaid balance that never expires.
SMS needs no app, no data connection and no need for the customer to have you in their contacts: it reaches any mobile phone, is read within minutes and is the preferred channel for urgent notices, appointment reminders and verification codes.
We work with high-quality direct SMS routes and approve every account manually: the idea is that nobody burns the routes your traffic goes out on and that your sender name keeps its reputation. And with configurable routing per channel: each account sets its primary provider and, if it has a second one contracted, the backup one.
Send with your own alphanumeric sender name ("YOURCLINIC", "YOURSHOP") instead of an unknown number: more opens and more trust. And with the CNMC sender registry mandatory in Spain since 2026 we help you with the documentation for the registration, which the holder of the alias submits to the CNMC.
Every bulk SMS returns its delivery confirmation (DLR) in real time: sent, delivered or failed, with the date and the reason for the error. Check it in the dashboard or receive it in your system through signed webhooks with retries, something no other Spanish SMS platform offers.
You do not need to integrate anything to get started: the SMS platform includes a complete campaign dashboard in English (and in Spanish, French, Catalan, Basque and Galician).
Upload your Excel or CSV file with phone numbers and data columns, write the message with custom variables ({nombre}, {fecha_cita}, {importe}) and confirm. Before sending you will see the exact cost estimate of the bulk SMS campaign: no surprises on the invoice.
{BAJA} and each recipient gets their own one-click opt-out link. Whoever opts out goes onto your opt-out list and campaigns always leave them out, at no cost. An opt-out sent as an SMS reply (“BAJA”, “STOP”) is not interpreted: you add it to that list yourself.Use the same balance for transactional SMS (order confirmations, OTP codes, payment reminders, system alerts) and for marketing SMS (promotions, sales, customer win-back). Every message is recorded with its status, its cost in euros and its full history, ready to audit.
Prefer to integrate it? The same capability is available through the multichannel REST API, including a campaigns API that we did not find at any of the Spanish providers compared in July 2026: create a complete bulk SMS campaign with a single POST /campaigns call.
We detect the international prefix of each phone number (E.164 format) and charge the SMS according to the destination country. Below are five reference destinations; the whole catalogue —215 destinations with a rate, prefix by prefix— is published in the price table by country, you have it in the calculator below and you can check it the same way in the dashboard and through the API with GET /api/v1/pricing/sms. A country without a loaded rate is rejected instead of going out at a made-up price.
| Destination country | Prefix | Price per SMS | 1,000 SMS |
|---|---|---|---|
| Spain | +34 | 0,039 € | 39 € |
| France | +33 | 0,08 € | 80 € |
| Germany | +49 | 0,0926 € | 92,60 € |
| United Kingdom | +44 | 0,0534 € | 53,40 € |
| USA and Canada | +1 | 0,0083 € | 8,30 € |
Buy SMS that never expire: on other bulk SMS platforms the balance expires after 15 or 18 months and you lose whatever you do not use. At SMSverifica your prepaid balance never expires: buy SMS today and use them when you need them.
A JSON REST API with API key authentication, idempotent sending (which not even Twilio has), signed status webhooks and a sandbox mode for testing without spending a euro.
PHP, Python, Node.js, Java, C#... if your language speaks HTTP and JSON, it is already integrated. Send a transactional SMS with one call, check its status with another, and receive status changes (DLR) at your own endpoint through signed webhooks with retries and backoff.
curl -X POST https://app.smsverifica.com/api/v1/messages \
-H "X-Api-Key: sk_live_..." \
-H "Idempotency-Key: pedido-8412-aviso" \
-H "Content-Type: application/json" \
-d '{
"channel": "sms",
"to": "+34600111222",
"from": "TUTIENDA",
"body": "Tu pedido 8412 llega hoy entre 10:00 y 12:00."
}'
# Response: message status and cost
{ "data": { "id": 5311, "status": "queued",
"channel": "sms", "cost_eur": "0.0390" } }Since 15 September 2026, Spanish operators block SMS with an alphanumeric sender not entered in the CNMC alias registry. It is the most important anti-fraud measure in the SMS channel in years: registered aliases are protected against impersonation (smishing) and unregistered ones are no longer delivered.
For your company it is an opportunity, not a problem: a registered, verified sender means that nobody can send SMS pretending to be your brand, and that your customers can trust your notices. At SMSverifica we work with you on registering your custom sender as part of the account approval process, so that you reach the 2026 block with your homework done.
Bulk SMS solves different problems in each business. These are the most profitable uses by sector; you have the details in messaging by sector and in the use cases.
Medical appointment reminder SMS with confirmation: fewer no-shows, a full schedule and patients who appreciate the reminder.
SMS for clinics →Order shipping and delivery notices by SMS: “your order arrives today”, tracking links and fewer calls to support.
SMS for ecommerce →MOT (ITV) reminders by SMS, vehicle ready for collection and quotes accepted with one reply.
SMS for garages →Payment reminders by SMS and due-date reminders that are read within minutes: the most effective and economical friendly debt collection.
Payment reminders by SMS →Send the access code or QR by SMS with QRACCESO and alert door staff to each visit or capacity incident.
Access by QR and SMS →Forgotten clock-in notices by SMS, shift notifications and HR reminders integrated with ACCESSTIME.
Clock-in notices by SMS →At SMSverifica, sending bulk SMS to Spain costs €0.039 per SMS of 160 characters, with a prepaid balance model in euros, no monthly fees and no lock-in. The Spanish market ranges between €0.029 and €0.08 depending on volume. Our rates by country are published and the balance never expires.
A standard SMS holds 160 characters with the GSM-7 alphabet or 70 characters if it includes Unicode symbols (emojis, special accents). Concatenated SMS are split into parts of 153 characters (GSM-7) or 67 (Unicode) and each part is charged as one SMS.
The DLR is the operator's real-time delivery confirmation: it shows the status of each SMS (sent, delivered, failed) in the dashboard and by signed webhook. The certified message goes further: a file of chained evidence and a verifiable PDF, for notifications with evidential value. We offer it only to Spain (+34) —which is where we have verified that the operator's delivery report means real delivery— and as a non-qualified electronic registered delivery service (art. 3.36 of the eIDAS Regulation): it is valid as evidence, but it does not have the legal presumption reserved for qualified providers. Certifying costs €0.328 in total to Spain: the certified text carries the link to the content and the expiry date, so it does not fit in a single SMS and takes two —€0.039 each— plus a €0.25 surcharge, excl. VAT (full rates).
Yes, with the recipient's prior express consent (art. 21 of the Spanish LSSI) or where there is a prior contractual relationship regarding similar products or services, always including a simple way to opt out. SMSverifica approves every account manually to check that the intended use complies with the LSSI and the GDPR and to protect the reputation of the sending routes.
Spain requires alphanumeric SMS senders (the ones that show your brand instead of a number) to be registered in the CNMC alias registry; unregistered senders have been blocked since 15 September 2026. The holder of the alias submits the registration to the CNMC; at SMSverifica we help you with the documentation, but we do not submit the application on your behalf.
No. At SMSverifica the prepaid balance never expires, unlike other SMS platforms where the balance expires after 15 or 18 months. You top up whenever you like and what you pay is exactly the balance credited. The specific periods, with their source and date, are in the LabsMobile alternative (18 months); plans with SMS that expire every month, in the Esendex alternative (both in Spanish).
Free sign-up reviewed by hand, a prepaid balance that never expires, GDPR and LSSI compliance, and support in Spanish. No fees, no lock-in and no surprises.