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The Tecnospeed fiscal documents hub

All the tax document issuances your software needs. In a single integration.

PlugDFe brings together components, APIs, and tax document management into a comprehensive, integration-ready ecosystem, with developer-to-developer support and the trust of over 25% of Brazilian software companies.
The tax infrastructure for software houses
+4.100
integrated software houses
20
years in the market
+224
specialists
< / > Choose your solution

What is the best way to integrate fiscal documents into your software?

PlugDFe Suite
OCX/DLL Libraries 01
OCX/DLL Libraries
PlugDFe Suite

Local tax issuance in your software

Libraries with all methods for issuing tax documents and ancillary obligations, running within your infrastructure. Without depending on external APIs, without paying per invoice issued.

  • Compatible with Windows, Linux, and Android
  • A1 and A3 Certificate Support
  • Multithreaded function for high performance
  • No fee per document issued
  • Suitable for Tax Reform and National E-Invoice
  • Approved in over 2,000 municipalities
PlugNotas
REST API 02
REST API
PlugNotas

Fiscal issuance via API, without installing anything on the client

A single REST API receives data in JSON and handles the entire issuance, authentication, transmission, return, and storage process. Integrate in days, not months.

  • Real-time notifications via Webhook
  • Single standard for over 2,000 city halls
  • Automatic numbering control
  • White-label solution, your brand, our infrastructure
  • Suitable for Tax Reform and National E-Invoice
  • Integrated with the Official Tax Reform Calculator
PlugStorage
DF-e Management 03
DF-e Management
PlugStorage

Management, storage, and retrieval of fiscal documents in one place

Comprehensive platform to manage, store, and consult electronic tax documents. From XML to delivery to the accountant, everything is automated.

  • Automatic lookup of tax documents issued to your CNPJ
  • Automatic sending to accountants and carriers
  • Direct integration with the Domínio system
  • Fast generation of SPED Fiscal and Contribution based on XMLs
_ Differentiators

Why did more than 1 in 4 software houses choose PlugDFe?

Simple integration, expert support, and technology that keeps up with fiscal changes in real-time. Everything your software needs to issue fiscal documents without complications.
Why PlugDFe - Cards
EASY INTEGRATION

Simplified integration

Whether via API or DLL and still compatible with multiple programming languages. Once integrated, we'll take care of the rest!

RELIABILITY

Reliability

We are a national leader in electronic tax documents, trusted by more than 25% Brazilian software companies.

SPECIALIZED SUPPORT

Developer support

Team ready to help with integrations and answer questions about business rules related to electronic fiscal documents (DF-e).

< / > HUB Solutions

What tax document does your software not yet issue?

PlugDFe brings together components, APIs, and fiscal document management in a single ecosystem. Integrate without bureaucracy, without manual homologation, and with specialized dev-to-dev support.
01.

Rest API PlugNotas

Send the invoice information in a JSON file and leave the entire issuance process to us.

02.

API or DLL for Industry

Industrial projects are complex. Electronic Fiscal Documents are too, but we take care of those for you.

03.

API or DLL for Retail

Several projects are competing to replace the old fiscal receipt. We have solutions for all of them.

04.

API or DLL for Services

The service sector deals with the most complex tax document requirements. There isn't a national standard. Actually, there is, ours.

05.

API or DLL for Transport

Carriers know the consequences of a problem with tax documentation well. Prevent fleet downtime.

06.

API or DLL for Tax Accounting

SPED projects promise to make life easier for payroll departments and accountants... and we promise to make their implementation easier for you.

07.

Fiscal Document Manager – Plugstorage

How about offering XML storage, querying, and downloading in your system... and even profiting from it?

Meet plugstorage
Most common questions

Frequently Asked Questions about the PlugDFe Ecosystem

PlugDFe is TecnoSpeed’s ecosystem for issuing and managing electronic tax documents. It brings together three complementary products—PlugDFe Suite (DLL/OCX components), PlugNotas (REST API), and PlugStorage (XML management)—designed to help you build more software with less effort. In addition, it offers specialized developer-to-developer support and the trust of a company that serves more than 25% of Brazilian software houses.

O PlugDFe Suite It is a component library that provides all the methods needed to issue electronic tax documents directly within your software, locally. It is compatible with Delphi, C#, PHP, VB6, and more. As for the Plug notas It is a REST API that facilitates the integration of fiscal documents such as NFSe and National NFSe, NFe, NFCe, MDFe, and NFCom through a structured JSON file for each document, perfect for those looking for an API to integrate into their WEB system with HTTPS requests.

The PlugDFe ecosystem covers NF-e, NFC-e, NFS-e (municipal standard in over 2,000 municipalities), National NFS-e, CT-e, CT-e OS, MDF-e, GNRe, EFD-Reinf, eSocial, and NFCom. The National NFS-e API and Component products are already compliant with the standard required by the Tax Reform.

Yes. TecnoSpeed follows SEFAZ Technical Notes and implements updates before the mandatory dates. IBS, CBS, and IS are already available in the staging environments for NF-e, NFC-e, and NFS-e, with production go-live scheduled for 2026. It's worth remembering that some updates require adaptations in the ERP for sending new fields — therefore, it's important that your technical team monitors changes in the integration.


To simplify calculations, PlugNotas features Official Tax Reform Calculator integrated, which automatically applies the official government return for IBS and CBS in XML, without its own interpretation.

The PlugDFe Suite (components) is compatible with A1 and A3 certificates. PlugNotas and PlugStorage only support the A1 model, in .PFX or .P12 formats. A3 certificates are not supported in cloud solutions. For PlugStorage, the A1 certificate is also used to automatically query tax documents issued to your CNPJ directly from SEFAZ.

Sending in PlugNotas is asynchronous: upon submitting the JSON via API, you immediately receive a note ID, not the final authorization. To track the result, there are two flows: periodic query via GET using the returned ID (status: COMPLETED, REJECTED, or PROCESSING) or Webhook, which sends an automatic notification to your endpoint when the note reaches a final status. Webhook is the recommended flow. Notes still processing do not trigger a notification.

PlugStorage is TecnoSpeed's platform for managing and storing electronic tax documents. It stores issued and received XMLs, automatically searches for invoices directed to the client's CNPJ, generates SPED Fiscal and SPED Contribuições from stored XMLs, and facilitates document transfer between the client, software house, and accountant. It has three interfaces with distinct permissions (Partner, Client, and Accountant) and full White Label support.

The PlugNotas offers an exclusive Sandbox environment for testing. Requests sent to the Sandbox never reach SEFAZ, the responses are mocked and always fixed, ideal for validating the structure of JSONs and integration flows. For PlugDFe Suite, the homologation environment communicates directly with SEFAZ's homologation servers, simply configure the environment property in the component. In both cases, it is possible to register test companies and certificates without impacting the production environment.

Yes, both PlugNotas and PlugStorage offer White Label support. With PlugStorage, you can customize your clients' access link, replace logos on pages and emails, and configure your own SMTP server, delivering an experience with your software house's visual identity, without references to TecnoSpeed. PlugNotas offers a solution as an issuance platform that can be incorporated into the partner's ecosystem.

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