List of the Top 7 eSignature APIs for Mac in 2026

Foxit eSign enables businesses to manage digital agreements through a secure online signing environment that supports legally enforceable electronic signatures. Designed for scalability and compliance, the platform simplifies the process of preparing documents, routing them for approval, and maintaining protected digital records. With integration-ready APIs and collaborative workflow features, teams can coordinate contract reviews and approvals efficiently from any location. In addition to signature functionality, Foxit eSign connects with Foxit Document Management System (DMS) to centralize document storage, organization, tracking, and lifecycle management in one streamlined ecosystem.

Digital signatures are an essential resource for advancing your business endeavors. They enable the creation of documents, facilitate payments, and allow for the establishment of automated workflows. E-Sign stands out as a prominent provider of electronic signature services worldwide. Our eSignature platform accelerates the agreement process, reduces manual efforts, and seamlessly integrates with the existing tools and systems you utilize. Agreements play a significant role in daily operations, encompassing everything from sales contracts to offer letters, account openings, and invoices. With E-Sign's electronic signature solution, you can efficiently finalize contracts, approvals, and various agreements. Furthermore, E-Sign can be incorporated into your digital framework, allowing you to leverage these advantages not just during the initial agreement stages but also in the preparation, management, and execution of contracts. This comprehensive approach ensures that your organization remains agile and responsive in a fast-paced business environment.

OneSpan Sign is a reliable electronic signature platform that caters to numerous prominent brands across the globe. Highly regarded by respected analyst firms and regulatory industries, OneSpan Sign is recognized as a flexible and scalable solution that empowers businesses to manage identities, secure access, authenticate transactions, and protect assets in various sectors such as finance, e-commerce, government, and healthcare. Whether deployed in the cloud or installed on-premises, OneSpan Sign efficiently captures signatures at points of sale, in remote settings, or directly through websites, serving as a comprehensive solution for contemporary business requirements. Its adaptability to various environments not only enhances signature processes but also increases overall operational efficiency for organizations aiming for improved workflow. Ultimately, OneSpan Sign positions itself as an essential tool for businesses striving to streamline their signing operations while maintaining security and compliance.

Effortlessly collect digital signatures from virtually anywhere with Formstack Sign, an automated tool that simplifies your document workflows by allowing signature acquisition across multiple devices. The ease of electronic signatures helps you avoid delays typically associated with waiting for eSignatures, enabling users to sign documents smoothly on computers, tablets, or smartphones. Whether starting contracts or closing deals, Formstack Sign ensures quick connections between crucial elements. This robust solution features remarkable automation options for digital signatures and even allows you to gather signatures while on the move. You can easily obtain mobile signatures from clients, colleagues, or potential customers by sending documents for signature via text messages, further enhancing convenience. Additionally, Formstack Documents enables you to create tailored documents in mere minutes, facilitating a smooth transition from tedious paperwork to beautifully crafted files that can be sent anywhere. The intuitive drag-and-drop eSignature builder guarantees that you won’t need IT support to prepare your documents for signing, and customizable templates can be established in a flash. Overall, with these advanced functionalities, Formstack Sign significantly boosts productivity and streamlines efficiency in your document management tasks, making it an invaluable asset for any organization.

Firma.dev presents a cost-effective, pay-as-you-go e-signature API tailored for developers. At just $0.029 per envelope, its pricing is notably lower than that of rivals such as Docusign or HelloSign, and there are no hidden monthly charges or setup fees. This platform includes features like embedded signing, customizable template editors, and dedicated customer workspaces for multi-tenant applications, complemented by straightforward documentation that facilitates swift integration within hours. Developers can start building without any initial payment or necessity for a credit card, making it a highly accessible choice for everyone in the tech field. This budget-friendly solution is ideal for both small-scale projects and larger applications, guaranteeing scalability and user-friendliness while accommodating a wide range of development needs. By providing a flexible and efficient option, Firma.dev empowers developers to streamline their e-signature processes with ease.

Legalesign is an enterprise software solution based in the UK that enables users to send, sign, and manage contracts digitally. This platform is adopted by various companies to enhance their efficiency and financial performance, boost customer satisfaction, minimize reliance on printing, facilitate signing from any location, and ultimately alleviate the heavy workload of paperwork that often burdens employees. By streamlining the contract management process, Legalesign not only saves time but also contributes to a more environmentally friendly approach to business operations.

There are several types of signatures you can use to sign documents, such as digital, electronic, biometric, and national ID. You have the flexibility to either decline or agree to sign the documents presented to you. Furthermore, you can delegate the signing process, co-sign, assign tasks, and utilize a range of other functionalities. Documents can be sent in various file formats, including but not limited to PDF and DOC. Additionally, you can upload files from cloud storage services like Google Drive, One Drive, and DropBox. The platform also allows you to reuse templates you have previously created. You can monitor and keep track of all documents that are sent for signature, establish different signing orders, and communicate through comments and private messages with signers. Cygnature ensures the security of your documents through Blockchain technology, with all document-related activities being recorded and time-stamped on the Blockchain. The Cygnature mobile app streamlines the document signing process, making it quick and efficient. Moreover, you can effortlessly integrate e-signature APIs into your existing systems, providing you with exceptional flexibility. Comprehensive assistance is available from the API documentation all the way through to the actual implementation, ensuring a smooth experience. This level of support makes it easier for users to adopt and manage the e-signature solutions effectively.