eSignature API
Developing an eSignature integration has never been easier. Legalesign uses a RESTful API that gives developers easy access to all the key functionality of our secure, reliable eSignature platform.
Flexible architecture allows total control of PDFs, sent documents, workflows, groups and users. Built for scalability, our digital signature API is structured around groups/teams, simple to implement but with the flexibility to describe many organisational systems.
Straightforward and accessible for rapid deployment; affordable for occasional or volume use. Our eSignature API pricing plan comes with full documentation (including an OpenAPI schema, with a quick install into Postman), along with patching, support and monitoring as standard.
Whether you're using PDFs or creating from scratch with HTML, all documents on Legalesign end up as Certified PDFs, so you and your clients get peace of mind with tamper-proof documents.
Visit our developer portal below to begin exploring the Legalesign electronic signature API, or check out some of the open-source work that developers have done with our API in Node.js and PHP via the links below.