Simple Electronic Signature (FS), Advanced Electronic Signature (FEA) and digital preservation in accordance with regulations.
Transparent, subscription-free pricing with discounts of up to 55% based on recharge.
Service on a pay-as-you-go basis with no subscription obligations or automatic renewals. Clear and transparent pricing.
If you want to integrate our signature solution into your management system, we make access to our API available free of charge.
No cost to activate additional utilities and centralized credit among all your users.
Clear pricing without subscription. You pay only for the signed document, regardless of regardless of the number of signatures and signatories.
Big savings ⚡️
You can have your documents signed by Simple Signature and Advanced Electronic Signature with OTP (one time password) verification via email or SMS.
We are the only ones to offer the service with no subscription obligations or automatic renewals. Costs are deducted from a prepaid credit that lasts for 3 years and with discounts based on the top-up denomination.
No extra cost to encourage sharing of the platform in the company with all one’s colleagues. Everyone can have their own login credentials to ensure transparency and tracking on who works on each document.
For those who want to connect all or part of their management system to our signature engine can do so without having to subscribe to expensive and binding subscription plans. In addition, it is also possible to continue using the service via a web interface.
No more paper archives in your company and the certainty that for as long as required by law, your document will remain securely archived.
Everything is done fully automatically.
Digital preservation in accordance with standards is mandatory for FEA signature evidence files and recommended for the FS to increase their evidentiary value in the process.
There are no monthly usage limits. So. for example, if you don’t use anything for 6 months, you don’ t pay anything and you don’t lose anything. When you get back up and running you can have any usage spike and even use all your credit in a few days, no strings attached.
If you need to have documents signed with legal value and want to avoid subscriptions and strings attached, OTP Service is for you.
Because we believe in simple, transparent and user-friendly things. We are an Italian company that has been operating locally and providing software and hardware for more than 20 years.
Pay-as-you-go service
We are the only ones to offer the service with no subscription obligations or automatic renewals. With OTP Service you pay on a pay-as-you-go basis: costs are deducted from a prepaid credit that lasts a full 3 years and whose expiration is renewed with each recharge.
Refills with free credit
The more you reload, the more you save. You can get up to a 55% discount for signatures based on the top-up denomination you choose.
The first recharge denomination starts at only 25€.
Unlimited users at no cost and centralized credit
No extra cost to encourage sharing the platform in the company with all their colleagues.
In fact, everyone can have their own login credentials to ensure transparency and tracking on who works each document.
There are no usage restrictions based on a specific user. In this way there may be very active users and other infrequent users but all draw from a single credit management.
Free API access
For those who want to connect all or part of their management system to our signature engine, they can do so without having to subscribe to expensive and binding subscription plans.
In addition, it is possible to use the API together with the web interface.
Get a transparent pay-as-you-go service that avoids charging you for subscriptions and integrates unlimited utilities and API service at no extra cost.
Compliant digital storage
Concurrently with the signing service, if you wish, we will take care of automating the deposit in digital preservation in accordance with the standards, both of the proof-of-signing files and, if you wish, of the entire signed document.
This means no more paper archives in your company and the certainty that for as long as required by law your document will remain securely archived. This is all done fully automatically.
In addition to being super convenient, standardized digital preservation is mandatory for FEA signature test files and recommended for FS to increase their evidentiary value.
Simple and advanced signature
Simple electronic signature (FS) perfect for the most common needs, easy and fast. With OTP (one time password) via email or SMS.
Advanced electronic signature (FEA) ideal for special cases where greater evidentiary value is required. Requires identification of the person who is going to sign. Imposes regulation-compliant digital preservation of the evidence file and insurance coverage.
Two transmission modes
Via portal
If you do not have large volumes of documents to be signed, you enter the otpservice.io portal, upload the document and the signer’s contact information. OTP Service will take care of serving the document to the signer and collecting his signature observing the legal procedures.
Via API
If you have large volumes and your application generates the documents to be signed, the ideal is to link your software with ours to automate the entire signing process.
Everything will be automatic, and the result will be that your management system will have back documents signed or even already deposited in digital preservation in accordance with regulations without anyone’s manual effort.
We show prices clearly and transparently.
Consumer plan with no strings attached, prepaid credit and discounts of up to 55% based on recharge denomination.
Activate the free trial€ 0,90
€ 1,40
€ 0,08
Free
Free ⚡️
Free ⚡️
Free in PROMOTION ⚡️
Optional € 0.20
Per FEA is mandatory for 20 years
Optional € 0.50
The credit lasts 3 years and the expiration renews with each recharge.
| Recharge | Free credit | FS Cost | Discount |
|---|---|---|---|
| € 25 | - | € 0,90/signature | - |
| € 50 | € 3 | € 0,86/signature | -6% |
| € 100 | € 10 | € 0,82/signature | -10% |
| € 250 | € 38 | € 0,78/signature | -15% |
| € 500 | € 125 | € 0,72/signature | -25% |
| € 1.000 | € 300 | € 0,69/signature | -30% |
| € 2.500 | € 875 | € 0,67/signature | -35% |
| € 5.000 | € 2.250 | € 0,62/signature | -45% |
| € 10.000 | € 5.500 | € 0,58/signature | -55% |
To every question, an answer.
Can’t find what you’re looking for? Email support@otpservice.io.
We have 2 types of signatures available.
Simple Electronic Signature (SES)
Perfect for most common needs, easy and fast. With OTP (one-time password) via email or SMS.
Compliant digital preservation optionally available.
Advanced Electronic Signature (AES)
Ideal for special cases requiring higher evidentiary value. Requires identification of the signer. Mandates compliant digital preservation of the proof file and insurance coverage.
Certainly, if you have large volumes and your application generates the documents to be signed, the ideal is to link your software with ours to automate the entire signing process.
Everything will be automatic and the result will be that your management system will have back the documents signed or even already deposited in digital preservation according to regulations without anyone’s manual effort.
At no extra cost.
No! We are the only ones offering the service without subscription commitments or automatic renewals. With OTP SERVICE, you pay as you go: costs are deducted from a prepaid credit that lasts for 3 years and whose expiration is renewed with each recharge.
Yes, you have 3 completely free signatures available monthly. The free plan excludes APIs and OTPs sent via SMS.
In short, the simple electronic signature (SES) is a very easy-to-use remote signing method that is legally recognized in Italy and Europe. The degree of its legal value is determined by a judge in case of dispute.
We at OTP service, to offer the strongest possible evidentiary value, have enhanced its features making it very similar, from the requirements point of view, to the advanced electronic signature (AES).
Every step of the signing process is recorded in an event log where every digital trace is documented. Moreover, to complete the signature, the signer is required to authenticate via an OTP sent to the email address or mobile number of the signer. For security reasons, these two data are set by the proposer and cannot be modified by the signer.
The signing process is very similar for both solutions, and the only difference compared to SES is the recognition of signers, which is only required for AES. In fact, there is specific legislation for this, and it is mandatory to carry out the recognition of the person who needs to sign.
You perform the signer’s recognition, and it can be done remotely or in person. If you do it in person, you just need to enter the signer’s data. However, if you can’t meet them physically, you can choose remote recognition and let them show their identity through our simple procedure. You’ll only need to check their ID document data and the photographic proof that will be requested. The shots will be taken in real-time, but your check is deferred. The process is indeed frozen, resumed, and concluded based on the time needed for each signer.
If the data is confirmed, the document is considered signed, and a copy is sent to each signer, with the signature certificate generated by OTP service attached to the document itself.
These are the simple steps, common to both types of signatures, to have a document signed:
These are the steps for the signer(s) who will receive the request:
No, there’s no extra cost to encourage sharing the platform in the company with all colleagues. In fact, everyone can have their own access credentials to ensure transparency and tracking of who works on each document.
Moreover, there are no usage limitations based on a specific user. This way, there can be very active users and rare users, but they all draw from a single credit management.
You can write an email to support@otpservice.io, or book a no-obligation demo.
Enter your details and we will contact you to arrange an operational demo on how the service works.
If you have any questions about how the service works or API integration, please contact us and we'll respond promptly.
Sign remotely, with simplicity
OTP Service v1.340.1 | Servizio di Fractalgarden Srl | Via Luisa Battistotti Sassi 11 - 20133 Milano (MI) - Italy | P.IVA: 05006700966 - REA: MI-1789001
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