Support Customer portal

Fiscal Documents

Financial solutions

Customer relationships

WiFire Customer management and loyalty

Digital signatures

E-commerce and Marketplaces

Plug4Market Integration with marketplaces

Support Customer portal

< > Meet PlugSign

The Electronic Signature API that scale with your Software.

Integrate legally valid electronic signatures into your ERP in just a few days. Full REST API, 100% white label, developer-to-developer support, and plans starting at R$ 0.29 per signed document.

Integrate the API into my software

View technical documentation

UNLIMITED API

Explore Features

The right Electronic Signature API for each segment

Whatever your customer segment, PlugSign allows you to develop the right document ready to sign. See how each vertical uses our API:

Contact

Speak with an expert and receive a personalized proposal.

Our technical team is ready to help you integrate the electronic signature API into your system. Please fill out the form below and we will contact you within 24 hours.

Your most complete software.

Your customers signing up at scale.

✦Unlimited subscriptions

✦Automatic alerts

✦Sending via WhatsApp and email

✦White Label

✦Resale model

✦Legal Validity 100%

✦Expert support for developers

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< > Simple integration

Integrate the Electronic Signature API in 3 steps

Request access to credentials

Create your developer account and access the complete technical documentation for the PlugSign REST API. Sandbox environment available for immediate testing.

Integrate via REST API in a few days

Clear documentation, SDKs, and expert dev-to-dev support. Our team of technical experts will guide your integration from start to finish.

Configure white label and start selling

Personalize with your company's visual identity and offer electronic signatures as a native feature of your software. Your clients sign, you get paid.

Supported formats: PDF, DOC, XML, and more

Send via WhatsApp and Email

Simultaneous signature by multiple signatories

ICPBrasil Digital Certificate + LGPD Compliance

>_ Differentiators

More than an API: a complete platform for your business to grow at scale.

channel

WhatsApp signature

95%: Less time spent on the process. Customers can sign on any device, without needing an app or registration.

Integrated AI

AI-powered analysis, summarization, translation, and document review. Reduce errors and rework.

Branding

Full White Label

Your brand in every detail. Custom logos, colors, and domains. Your clients won't know it's TecnoSpeed.

templates

Customizable Templates

Create templates for each workflow. Save up to 90% on recurring documents.

workflow

Simultaneous Signature

Multiple signatories in parallel. Weeks become minutes. Track every step in real time.

automation

Automatic Alerts

Never miss a deadline. Smart notifications for signers and managers at every step.

Types of business

The right solution for your company's profile

De startups a grandes corporações, temos o The ideal plan for every moment of your business.

Ideal to start

Start

Perfect plans for those starting the integration of electronic signatures into their software.

Low cost per document
Limited storage
Focus on starting with reduced costs
Full access to REST API

Start now

Software Companies

Software House

For software houses that want to resell electronic signatures and generate recurring revenue.

Fully White Label Plans
Focus on revenue growth
Exclusive resale model
Unlimited customer accounts
Unlimited documents and signatures

Speak with a consultant

Corporate solutions

Large Companies

Maximum volume at the lowest cost, dedicated support, and robust infrastructure for critical operations.

Customizable flexible plans
Best cost per document on the market
Up to 1TB expandable storage
Flexible Rate Limit
Integrated AI for documents
Flexible and dedicated SLA

Speak with an expert

Compliance

100%: secure, legally valid, and in compliance with Brazilian law

PlugSign is the electronic signature API your company can use with peace of mind. All signed documents have:

MP 983/2020

Full legal validity according to current legislation

LGPD

Total protection of your clients' personal data

ICP-Brazil

Digital certification at the highest security standard

Cryptography

End-to-end with secure cloud storage

Auditoria

Full audit trail with date, time, and IP address of each signature

Law 14.063/2020

Compliance for documents with public entities

Documents signed with security and legal validity

Several days

5 minutes to sign a contract

Now: 5 minutes

"The process that previously took several days has been drastically reduced. Today, contract signing is completed in about 5 minutes."

Camila Maximo

Colorbrand

Market Recognition

Recognized by the market. Approved by the press.

"TecnoSpeed Surpasses 1 Million Digitally Signed Documents"

Grupo TecnoSpeed: "Most Incredible in the Technology and Computing Sector"

"TecnoSpeed is one of the 500 fastest-growing companies in the Americas"

The most used platform for electronic signatures by thousands of satisfied companies.

+4.100

integrated software houses

1 million

signed documents

100%

LGPD Compliance & MP 983/2020

Most common questions

Frequently Asked Questions about the PlugSign API

The PlugSign Electronic Signature API is a solution developed by TecnoSpeed that allows software houses and companies with in-house development teams to integrate legally valid digital signature functionality directly into their ERP systems, SaaS platforms, or applications in just a few days. The API is REST-based, 100% white-label, and supports sending documents via WhatsApp and email.

Yes. PlugSign operates in full compliance with Provisional Measure 983/2020, Law No. 14.063/2020, and the LGPD. All signed documents have guaranteed legal validity, ICP-Brasil digital certification, and a complete audit trail.

Most integrations are completed in a few days. PlugSign offers complete technical documentation, a sandbox environment for testing, and dedicated developer-to-developer support, minimizing implementation time.

Yes, PlugSign is a 100% white-label solution. You can customize the solution with your company’s logo, colors, and domain. To your customers, the electronic signature is a native feature of your software, not of Tecnospeed.

PlugSign is used in various sectors, notably in Education (enrollment agreements), Health (consent forms), Real Estate (lease agreements), and Technology (software contracts and SLAs). Any system that works with documents can benefit from integration.

PlugSign offers flexible plans that adapt to your business’s document volume. With high-volume plans, the cost can be as low as R$ 0.30 per signed document. Contact our team to receive a customized quote.

Yes! PlugSign was a pioneer in offering electronic signatures via WhatsApp in the Brazilian market. Your client receives the link directly on their cell phone, views, reviews, and signs the document without having to install any apps. This reduces the time required for the signing process by up to 95%.

Start now