Compare the Top eSignature APIs as of April 2026

What are eSignature APIs?

eSignature APIs are software interfaces that allow developers to integrate electronic signature capabilities directly into applications, websites, or workflows. They enable users to sign documents digitally without printing, scanning, or physically handling paperwork. These APIs support legally binding signatures and often comply with global regulations such as eIDAS, ESIGN, and UETA. Developers can automate document workflows, request signatures, track status, and store signed files programmatically. eSignature APIs are widely used in industries like finance, healthcare, legal, and HR to streamline approvals and reduce turnaround time. Overall, they help businesses digitize document processes, improve efficiency, and enhance user experience. Compare and read user reviews of the best eSignature APIs currently available using the table below. This list is updated regularly.

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    Yoti

    Yoti

    Yoti

    We’ve partnered with Post Office to provide accessible and inclusive identity services across the UK. The Yoti app is your secure digital ID. It’s the safe place to store your personal details, encrypted so only you can access them. When you need to prove your age, identity or other details about yourself, you can securely share just the details required without revealing everything about yourself. Give your customers a safe way to prove who they are with your business. Our verification solutions can be integrated into your website, app, terminal or managed through our custom platforms. Our systems are built in a way that means we cannot mine or sell data to third parties. Once we’ve completed our security checks, we can’t access any user details. We’re trusted by regulators for adhering to the highest standards of security. Yoti was founded on a strong set of principles that we uphold to ensure we continue to only build tech for good.
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