Why does smscertificado.es ask for an ID or tax number at sign-up?

Because the certificates issued have legal validity and are issued in the account holder's name, like the invoices. The identifier is verified and must match the name.

Why is the mobile validated at sign-up?

The validated mobile acts as the sender of the sendings and as the second access factor. The PIN expires after 15 minutes.

Does the account have a fee, lock-in or minimum use?

No: the account is free and without lock-in. Only purchased credits are paid for, and they never expire.

Your first certified notification, today

Q: Can companies outside Spain sign up?

Yes, as a company and with a corporate email address. Free webmail accounts are not accepted outside Spain.

Signing up is free and takes a minute: fill in your details, validate your mobile with an SMS PIN and receive your password by email. No monthly fee, no lock-in and no credit card.

The whole platform from day one, API included
Trial credits for companies One code per mobile number, subject to conditions.
Pay only for what you send: packs from €10 that never expire
Technical team support included · +34 910 606 161

Trust Service Provider
ISO 27001 · ISO 9001

1. Your details
2. Validate your mobile
3. Done!

Your details

We issue your invoices and your certificates with them, so they must be real.

Company or freelancer Individual

Company name or freelancer's name

Tax ID (CIF / NIF)

Email Your access password will arrive here. For the trial credits use your corporate email.

Mobile

We will send you a PIN by SMS to validate it. It will be your sender and your second access factor.

I have read and accept the terms and conditions — which include the data processing annex (art. 28 GDPR) — and the privacy policy.

Already have an account? Log in

Trust Service Provider
supervised in Spain Double seal
Mensatek + FNMT on every certificate ISO 27001 & ISO 9001
independently audited 10-year custody
at no extra cost Spanish engineering
operating since 1998

After signing up

Three steps and you are notifying

Log in with your password

It arrives by email as soon as you validate the mobile. Change it whenever you want from the dashboard.

Explore the platform

Certified SMS, email, RCS and WhatsApp, contracts, timestamps, identity verification… all in the same dashboard and the same API.

Top up when you need it

Packs from €10 that never expire and work for every service. The rates are published on the pricing page.

Frequently asked questions

Common sign-up questions

Why do you ask for my ID or tax number?

Because the certificates we issue have legal validity and are issued in the account holder's name, just like the invoices. We verify that the identifier is correct and matches the name, so nobody can sign up posing as your company.

Why is the mobile validated?

The validated mobile acts as the sender of your sendings and as the second access factor for the account. The PIN expires after 15 minutes and is used for nothing else.

Is there a fee, lock-in or minimum use?

No. The account costs nothing and commits you to nothing: you only pay for the credits you choose to buy, and they never expire. The full rates are on the pricing page.

Can I sign up from outside Spain?

Yes, as a company and with a corporate email address (free webmail accounts are not accepted outside Spain). Choose your mobile's country in the dropdown to receive the PIN correctly.