AI-Ready Agreement Infrastructure
A secure, API-first eSignature platform for the workflows you operate today and the AI-driven applications you build tomorrow.
- 10M+
- Documents sent
- #1
- Rated #1 for Enterprise Support
- 2012
- Established
What does AI-ready mean?
AI is changing how software is built and how business processes are operated. But business-critical agreement workflows still require controlled access, dependable infrastructure and auditable outcomes.
Legalesign is AI-ready because its capabilities are available programmatically, its technical documentation can be accessed by AI development tools, and its complex user experiences can be embedded securely into applications built with AI.
That means your teams can automate more today while retaining the freedom to build, integrate and adapt as AI-driven workflows evolve.
"We use Legalesign to track some very business critical topics which require many signatures. Before it was done by email, PDF, and tracked on a spreadsheet which was truly terrible. I am a massive fan of the tool and I have rolled it out across a number of geographies. I find it easy to use, easy to explain and there is a great help section online too. Very impressed with the support team. They are responsive and always helpful and 99/100 they solve the issue there and then."
Generali UK
API-first, not API added later
Legalesign is built to be operated programmatically. Use REST for direct, dependable integrations or GraphQL for deep access to the platform’s capabilities.
Prepare documents, configure fields, send for signing, witnessing or approval, manage users and customer environments, track activity in real time and retrieve completed agreements—all from your own systems.
Webhooks and WebSockets keep your applications up to date as events happen, while the Developer Portal gives teams control over credentials, environments and integration activity.
Ultimate Finance
"We chose Legalesign as it provided the best functionality and interpretation of witnessing as per the legal definition"
Give AI the right context
An API makes Legalesign’s capabilities available to software. MCP makes its technical knowledge accessible to AI development tools.
Connect tools such as Claude, Cursor and Windsurf to the Legalesign documentation server for current, context-aware guidance as you build. Your AI assistant can work with relevant API references, integration patterns and product documentation instead of relying on generic knowledge or guesswork.
This helps developers explore the platform, produce better implementation code and move from idea to working integration faster.
The Cambridge Building Society
The flexibility to offer an electronic signature service has been an instant hit, and the tailored approach used by Legalesign means we’ve been able to provide greater accessibility for customers of The Cambridge. Utilising a digital space to share signed documentation safely means we’re able to track letters and forms, we can quickly send follow-up and reminder messages, and the secure delivery of Product Switch forms is vitality important for us.
Why customers choose—and stay with—Legalesign
Businesses choose Legalesign for its ease of use, responsive support, flexible pricing and depth of capability. It’s a proven platform teams can rely on today, with the flexibility to automate, integrate and build for what comes next.
Start Sending Documents with Legalesign Today
No credit card required.
"Simple effective and efficient process has enhanced the security of our operations. Controls our authoritative hierarchy and provides comprehensive tractability. Simple to install, use and manage, highly recommended."
Engenda Group
Move fast without building everything yourself
Legalesign gives product, development and IT teams the APIs, Components and real-time tools needed to build sophisticated agreement workflows without recreating eSignature infrastructure from scratch.
Start with one automated process or embed Legalesign throughout your product. MCP-connected documentation helps AI development tools work with accurate context, while experienced human support is available when you need it.
Your trusted eSignature supplier for business-critical documents.
"I liked it from the beginning, making the initial phone call to Legalesign. I was explained the process from start to finish. When I sent our initial contracts over for completion, they were back in a matter of days. As with everything, I knew there were going to be changes that had to be made. Those changes were implemented so quick and professionally."
Employment Partners
How does Legalesign compare with DocuSign?
Compare Legalesign with DocuSign across features, support and value for business eSignature workflows.
Customer Stories
Read more customer storiesMorgan Law
"Legalesign's simplicity of use has allowed Morgan Law to automate our document signing process and experience... The ease of accessing documents has improved our daily tasks. This accessibility not only saves us valuable time, but also ensures that we can stay organised and focused on our priorities... The use of Legalesign has solved our problem and significantly improved the automation of our documentation."
Gareth Elwin
Chief Executive
Dumfries and Galloway Council
“Legalesign have enabled Dumfries and Galloway Council to continue our business as usual processes during this period of remote working. Processes are simple and efficient. The support from the staff at Legalesign has been first class. The work done by Legalesign allows us to authenticate and ensure the credibility of the authorisations.”
Garry Kerr
Procurement, Dumfries & Galloway Council
"We found the communication and value for money the best out of the other offerings. Great level of responsiveness. We were enabled to go paperless. It helped us to stay in line with our sustainability policy. [Legalesign] help get the documents ready for the portal – even though this comes at an extra cost it is worth it. [Legalesign] enables a smoother onboarding process. New employees fill in their onboarding paperwork on their phones in their own time."
Morgan Law
"Legalesign's simplicity of use has allowed Morgan Law to automate our document signing process and experience... The ease of accessing documents has improved our daily tasks. This accessibility not only saves us valuable time, but also ensures that we can stay organised and focused on our priorities... The use of Legalesign has solved our problem and significantly improved the automation of our documentation."
Gareth Elwin
Chief Executive
Dumfries and Galloway Council
“Legalesign have enabled Dumfries and Galloway Council to continue our business as usual processes during this period of remote working. Processes are simple and efficient. The support from the staff at Legalesign has been first class. The work done by Legalesign allows us to authenticate and ensure the credibility of the authorisations.”
Garry Kerr
Procurement, Dumfries & Galloway Council
"We found the communication and value for money the best out of the other offerings. Great level of responsiveness. We were enabled to go paperless. It helped us to stay in line with our sustainability policy. [Legalesign] help get the documents ready for the portal – even though this comes at an extra cost it is worth it. [Legalesign] enables a smoother onboarding process. New employees fill in their onboarding paperwork on their phones in their own time."
Best Relationship & #1 for Enterprise Support
Winning 'Easiest to do Business with' for Enterprise for the third time running. Legalesign is continually recognised for its quality in G2 reports year on year, based on authentic and validated customer reviews.
Start Sending Documents with Legalesign Today
No credit card required.