Best API Design Software for Mac of 2025

Accelerate the development of APIs that are ready for production. AI-Powered Code Generating, Mocking within Minutes and On-Demand Ephemeral Testing Environments. With Blackbird's proprietary technology and simple, intuitive tools, you can Spec, Mock and Write Boilerplate code faster. Validate your specs, run tests on a live environment and debug in Blackbird with your team. This will allow you to deploy your API with confidence. You can control your own test environment, whether it's on your local machine, or in the dedicated Blackbird Dev Environment. This is always available to you in your Blackbird account and there are no cloud costs. OpenAPI standardized specs are created in seconds, so you can begin coding without spending time on your design. Mocking that is dynamic, sharable and easy to share in minutes. No need to manually write code or maintain it. Validate and go.

Engineered for peak performance and efficient resource use, KrakenD can manage a staggering 70k requests per second on just one instance. Its stateless build ensures hassle-free scalability, sidelining complications like database upkeep or node synchronization. In terms of features, KrakenD is a jack-of-all-trades. It accommodates multiple protocols and API standards, offering granular access control, data shaping, and caching capabilities. A standout feature is its Backend For Frontend pattern, which consolidates various API calls into a single response, simplifying client interactions. On the security front, KrakenD is OWASP-compliant and data-agnostic, streamlining regulatory adherence. Operational ease comes via its declarative setup and robust third-party tool integration. With its open-source community edition and transparent pricing model, KrakenD is the go-to API Gateway for organizations that refuse to compromise on performance or scalability.

Postman serves as a collaborative platform for developing APIs, designed to simplify the entire process of API creation and enhance teamwork, enabling the rapid development of superior APIs. The platform's features facilitate each phase of API construction, making it easier to collaborate and accelerate the creation of high-quality APIs. Users can quickly and effortlessly send requests for REST, SOAP, and GraphQL directly within Postman, optimizing their workflow. Additionally, it allows for the automation of manual tests, seamlessly integrating them into your CI/CD pipeline to safeguard against potential issues when code changes are deployed to production. API behavior can be communicated effectively by simulating endpoints and their respective responses without the need for a backend server setup. You can also generate and publish visually appealing, machine-readable documentation, which helps in making your API more accessible for users. Regular performance and response time checks ensure you stay informed about your API's health, allowing for proactive management. Lastly, Postman fosters a shared environment for API creation and consumption, enabling real-time collaboration among team members.

Directus is an Open Data Platform that allows you to manage any SQL database's content. It offers a powerful API layer to developers and an intuitive app for non-technical users. Directus is written entirely in JavaScript (primarily Node.js or Vue.js), and it is modular and extensible. This allows it to be tailored to your specific project needs. Our platform can be used to manage digital experiences as a headless CMS, a database client for democratizing information, or as a standalone web app for back-office CRM, inventory, business intelligence and project management.

OpenLegacy’s Digital-Driven Integration software enables organizations with legacy systems to release new digital services faster and easier than ever before. It connects directly to virtually any core system, instantly generating digital services on the cloud. OpenLegacy helps industry-leading companies drastically reduce costs and resources while helping them become digital to the core. The OpenLegacy HUB is an all-in-one enterprise digital and cloud modernization platform, without disruption.

DreamFactory is a REST API Management Platform. Auto Generate REST APIs. A cloud-based or on-premise API generation platform that is enterprise-grade. Instantly generate database APIs to build faster applications. The biggest bottleneck in modern IT is eliminated. Your project can be launched in weeks instead of months. DreamFactory creates a secure, standardized and reusable, fully documented, live REST API. DreamFactory can integrate any SQL or NoSQL file storage system or SOAP service. It instantly creates a RESTAPI with Swagger documentation, user role, and more. Every API endpoint is secured with User Management, Role Based Access Controls, SSO Authentication and Swagger documentation. Rapidly create mobile, web and IoT apps using REST-based APIs. DreamFactory offers example apps for iOS, Android and Titanium.

Create APIs that seamlessly integrate with client applications. RepreZen API Studio serves as a comprehensive workspace that emphasizes API-first design for your entire team, aligning your API designs and producing APIs that smoothly integrate with client applications. This tool offers a fully featured OpenAPI editor equipped with content assistance, customizable templates, outline navigation, and more, making API design swift and focused. The live documentation feature provides immediate insights and clarity from the perspective of API users. Additionally, an interactive diagram allows you to visualize the API during the design process. You can generate and view APIs in any web browser, ensuring that users have a quick and intuitive overview. The platform also enables the division of large Swagger API specifications into multiple files, allowing for the sharing and reuse of API components across various projects and teams. With the ability to edit, navigate, document, and generate APIs, all in full compliance with OpenAPI standards, users can consolidate and simplify complex multi-file projects into a single file for effortless downstream code generation and documentation presentation, enhancing overall productivity and collaboration. Such features not only streamline the design process but also foster better communication among team members.

StepZen offers a distinctive low-code solution for developing GraphQL APIs that can connect to various data sources, including REST, SQL, NoSQL, SOAP/XML, and GraphQL itself. By executing a single command, users can designate their backend, allowing StepZen to automatically introspect it and create the necessary schema. Following this, you can easily modify the schema with just a few lines of code, utilizing powerful directives like @rest and @dbquery, or you can create one entirely from the ground up. Furthermore, the directive @materializer enables you to integrate multiple graphs, facilitating the scalable use of GraphQL across different teams and domains. This feature simplifies the process by eliminating the need to manage challenges across subgraphs, avoiding the creation of type stubs and other potential complications. Whether you require a standalone graph or a federated graph-of-graphs, deploying it to StepZen's robust cloud infrastructure can be accomplished with a single command. In addition, the platform includes built-in features for automatic parallel execution, enhanced security and control over APIs and data, as well as optimizations for performance and reliability. Consequently, StepZen ensures that your GraphQL infrastructure remains both secure and stable, allowing you to concentrate on advancing your business objectives without distractions. With these capabilities, StepZen is positioned to streamline your API development process effectively.

Sparrow provides a comprehensive toolkit designed to enhance the entire API lifecycle, guiding research and development teams towards achieving excellence in design-first API development. With cURL, users can easily send API requests while supporting essential methods such as GET and POST. This platform simplifies API interactions by efficiently managing headers, data, and authentication. As a collaborative open-source solution for API development, Sparrow streamlines the creation of outstanding APIs. Through collaborative efforts, developers are able to advance their practices earlier in the development timeline, resulting in more robust APIs and expedited delivery. Users can enjoy seamless parallel testing across various environments, allowing them to gather valuable insights in real-time. Furthermore, Sparrow equips users with powerful tools to secure and manage their API data, along with the option for self-hosting, granting full control over their testing environments. Additionally, users can remain informed about the latest updates, insights, and resources provided by Sparrow to further enhance their development experience. This commitment to continuous improvement ensures that developers are always equipped with the best practices and innovations in API development.

Hoppscotch simplifies the process of creating and testing APIs, enabling quicker product launches. Build APIs with speed, conduct instant tests, and automatically document and share your work. From initial prototypes to final production, you can develop efficiently without the hassle of switching between different tabs. Everything necessary for seamless API development is provided by Hoppscotch. Set up dedicated workspaces for your teams, controlling access as needed. Collaborate with your colleagues in real-time, ensuring smooth teamwork. You can even deploy Hoppscotch on your own servers for added flexibility. Organize your requests into collections or folders to facilitate sharing with your team. Manage your environment variables for consistent usage across your projects. Additionally, keep track of your request history for easy reference. Modify headers, authenticate your requests, generate random data, and explore many more features at your disposal. Test your APIs thoroughly and write assertions to verify responses. Hoppscotch supports over 30 languages, allowing you to use it in your preferred tongue. Keep an eye on all activities within your workspace, tracking who performed actions and when. Utilize your existing SSO provider for easy login to Hoppscotch, and efficiently manage your users, workspaces, and other resources. Furthermore, the intuitive interface ensures that both novices and experienced developers can navigate the platform effortlessly.

Mockoon provides a wide array of features that simplify the process of API mocking significantly. By downloading the latest version of Mockoon, you can begin crafting mock APIs immediately! You have the flexibility to create an unlimited number of mock APIs, each with countless routes, and can run them simultaneously. Additionally, the command-line interface (CLI) enables you to execute your mock APIs in various automated environments, such as servers, CI/CD pipelines, and GitHub Actions. The tool supports importing and exporting mock APIs in the Swagger/OpenAPI format, streamlining integration with other platforms. You can configure your mock APIs to deliver multiple responses based on specific rules or randomly, complete with any headers, body content, or HTTP status codes you choose. Furthermore, Mockoon allows you to serve your mock API over a secure TLS connection using a self-signed certificate. You can customize your routes by adding specific response headers and enjoy features like auto-completion for ease of use. The application also lets you introduce latency at both the environment and route levels, or even combine both settings for more nuanced testing. To assist with troubleshooting, all incoming requests and outgoing responses are meticulously logged, making debugging much simpler. In addition, Mockoon's proxy mode can redirect any undefined routes to a designated host, ensuring that your mock environment remains functional. Finally, it also includes file serving capabilities, complete with automatic MIME type detection and support for templating, enhancing the versatility of your mock API setup.

A Comprehensive Solution for Developing, Testing, and Securing APIs. Revolutionize the way you create, evaluate, and oversee your APIs. Work collaboratively, execute tests locally, and safeguard sensitive information throughout the entire process. Instant Access, No Signup Required Begin using our platform immediately—eliminate the hassle of cumbersome registration or sign-in procedures. Integrations with VS Code & Desktop Applications Utilize our VS Code extension and desktop applications to ensure a smooth integration with your preferred working environment. Secure Local Storage & Execution Maintain the safety of your data through local storage and execution, which guarantees that confidential information remains on your device. Unlimited Collection Testing Effortlessly test and manage an infinite number of API collections, allowing for seamless scalability across all your initiatives. Create Mock Servers Enhance your development process by setting up mock servers that facilitate rapid testing and simulation of API responses. User-Friendly Testing & Playground Make testing easier with our intuitive interface—explore APIs without the need for any coding. Our advanced enterprise capabilities elevate your API management experience. Reach out to us for more information and to see how we can assist you further!

ApiScout provides a one-stop shop for testing, building, and describing Rest Apis. It is extremely fast. There is no waiting or restarting. No spinners. Fast on all Mac devices. Make requests and inspect the responses ApiScout will be the only HTTP Client tool that you need to build, test, and describe your APIs. You can organize your requests into folders Dynamic values Use dynamically calculated values, previous responses, environment variables and computed hashes. In every part of your request. Environment variables You can group similar sets of values together using environments. It is very useful for switching user accounts, servers, and other tasks. Define variables like tokens, server base URLs, or credentials and re-use them globally for a seamless development/production workflow.

The Cross-Cloud API Management Platform enables faster development and delivery of contemporary applications through effective API management. It allows for the swift launch of mobile applications, ensuring they reach customers conveniently. Additionally, it acts as a connector between traditional systems and modern applications, facilitating seamless integration. Businesses can easily offer partner and third-party services through their APIs, while also streamlining cumbersome user interfaces behind a more polished API design. By unlocking previously isolated systems, companies can create a cohesive customer experience that enhances brand perception. The platform also provides comprehensive insights into API traffic, developer engagement, and overall system performance. Through the evaluation of key performance indicators (KPIs), businesses can generate actionable insights that guide their strategic decisions. Furthermore, by harnessing machine learning capabilities, organizations can detect irregularities and implement necessary adjustments. API management solutions equip companies with vital insights into traffic patterns, leading developers, and response times, which collectively help attract developers, enhance API efficiency, identify challenges, and facilitate improved decision-making processes. Overall, this platform empowers organizations to optimize their API strategies, driving growth and innovation.