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Make eSignature your own

A high volume, highly reliable eSignature API that has processed millions of documents. Integrate Legalesign eSignature to automate your document signing processes.

White labelling

The API provides a flawless integration between your app and the Legalesign eSignature platform. Your customers experience your brand and your workflows.

Reliable REST API

The easy to use and proven REST API delivers a powerful set of functions that can be implemented in a number of different formats.

Embeddable

Use the API to frame the PDF edit page and the signing pages to make a truly integrated experience.

What is the API?

The API (application programming interface) is a REST API for access to the features of the Legalesign Platform.

What can you do with the API?

The Legalesign API provides the functionality to either add eSignature to your own software for your end-customers, or to automate in-house processes:

You can:

  • Send a PDF to be signed, witnessed or approved by up to 99 recipients.

  • Upload a PDF and add form fields using either text markers or x/y coordinates.

  • Embed the form editor in an iframe.

  • Re-use a PDF, customising it upon sending.

  • Get a preview of your custom PDF before sending.

  • Extract the signing link and either embed the signing pages on your own website, or suppress Legalesign emails and use custom communication channels for signers.

  • Use your own domain for embedded signing pages.

  • Use HTML documents instead of PDF (PDF is recommended however).

  • Get all events reported back to a URL of your choice in realtime with webhooks.

  • Add groups and users programmatically to model multiple discrete end-customer data environments (and optionally provide legalesign app to those users too).

  • Integrate with no-code solutions like MS Power Automate.

How does API work?

The Legalesign API has several integration options to suit different applications.

Using a secure REST API your systems can communicate with Legalesign and trigger a host of functionality.

  • Website integration - provide a signing page within your own website.

  • Integrate into the Microsoft software suite via PowerAutomate.

  • Software integration - Create a seamless signing experience.

API Customer Stories

Testimonial

Ready Project

"Using the Legalesign API is a breeze, sending and processing e-signed documents couldn't be easier"

James

Director of Information Systems

Testimonial

NHS CCG

After frustrating trials with a number of electronic signature providers, including some of the best-known names in the field, we finally found a product which offered all the features we wanted and the flexibility we needed at a realistic price. Legalesign was immediately easy to use and the development team provided exceptional levels of support to help us achieve rapid integration with our bespoke, in-house software. As a result, we were able to implement our full solution for generating and managing complex multi-party contracts very quickly and keep several business-critical projects on track. Feedback from end-users has been very positive, as this not only saves a great deal of time but also provides absolute clarity and assurance throughout the process. The ease with which we can now make updates to key legal documents means that this is no longer a bottleneck in our development process, enabling us to focus on our real work!

Carl D

Testimonial

G2 Review

"I'm a developer and I've integrated Legalesign into a CMS product. The use case was for users to have to sign an NDA before gaining full access to the system. I managed to do this with ease using the Legalesign REST API such that the entire process of user sign-up, NDA signing and granting full access to the system is entirely automated. Their support team are knowledgable on development related issues and are very responsive. I also trialled Adobe EchoSign... and without a doubt, Legalesign most definitely represent the best solution when it comes to features, flexibility and robustness versus pricing."

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Anon

Developer

Testimonial

N4Gtv.com

"I am definitely planning on using the Legalesign e-Signature API again soon. I appreciated the support and attention to security."

Arthur King

Head of IT

Testimonial

Cloudbase

"Integrating Legalesign via its API into a customers solution worked flawlessly."

Trevor Gildesleeve

Owner

Ready to Start your Integration?

To start developing or using a Legalesign Plugin, you'll first need to get verified for API access to generate a key. Get in touch and we can help you through the process.

Key Features

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FAQ

Frequently asked questions about eSignature API and Legalesign.


Have a question that is not answered here? Contact us and our award winning Support Team will be in touch.