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The integration of SIGN8 using our API enables companies to flexibly, securely and quickly connect the solution to their own systems & software solutions

Lengthy and cumbersome contract processes are a thing of the past with SIGN8’s electronic signatures and seals. After all, sending and managing contracts and documents digitally can significantly improve workflow, reduce error rates and save costs. In addition, SIGN8 also offers other useful features, such as the form or template function, to make the application even more convenient.

However, SIGN8 not only offers the signature function, but also an “Application Programming Interface” (API) for integrating our solution into existing systems. APIs are interfaces and connect software components, e.g. Document management, ERP or CRM systems. APIs standardize the data transfer between individual programs and modules and translate them into uniform structures that can be read by the various components and systems. With the help of APIs, the function of modules can be checked and maintained more easily, and content can be integrated more easily into different websites, systems or programs.

The form of API used by SIGN8 is the “Representational State Transfer” API (RESTful-/REST-API) an. A REST API is characterized by an existing client/server architecture that enables smooth communication between clients and servers and manages requests via HTTP. The REST API is executed using policies that can be implemented flexibly. Thus, REST APIs can be made much faster and more compact with improved scalability than the simple API.

What are the benefits of the SIGN8 API for our customers and partners?

With the help of the SIGN8 API, an individual e-signature solution can be developed and seamlessly implemented into the existing system of the customer or partner. Extensive Swagger documentation and an interactive Postman Collection are available for this purpose. Through integration, SIGN8’s electronic signatures and seals can be adapted to the interface and the customer’s circumstances and needs, and a customized range of services can be offered, supported with additional useful functions. Thus, SIGN8 offers not only the product, but a complete service that makes the digitization of this process as convenient as possible for the customer.

The integration of the SIGN8 API into a customer system is very simple and can be summarized in 4 steps:

  1. Enter the general workflow data, such as name, description, expiration date, etc.
  2. Create a recipient and enter the data, such as name, email, phone number, etc.
  3. Link the desired documents together (PDF file(s), form data, etc.)
  4. Create signature and/or annotation fields

It doesn’t matter whether the customer is a freelancer, a medium-sized company or a large corporation – SIGN8 has the right pricing model for every situation:

One of our technology partners, ADITO, wants to exploit precisely this integrability for itself. Indeed, the integration of SIGN8’s e-signature solution into ADITO’s CRM system enables contracts and documents to be sent automatically for signature directly from the CRM. In addition, SIGN8 makes it easier for ADITO’s customers to create, approve and sign invoices, quotes, contracts and more.

Since the integration of the SIGN8 API into already existing processes is independent of time and location, users can be offered the maximum flexibility that is becoming increasingly important in a modern working day. Since customer satisfaction is very important to us, we are constantly developing SIGN8 and working on new functionalities that make our customers’ everyday work easier.

If you have any questions about the SIGN8 API or suggestions for new features, please feel free to contact us at