Top REST United Alternatives

Postman is a collaborative platform tailored for API development, aimed at streamlining the process of creating APIs while promoting teamwork, which leads to the quick production of high-quality APIs. Its various features support every stage of API development, thereby enhancing collaboration and expediting the process of building superior APIs. Users have the ability to rapidly and easily send requests for REST, SOAP, and GraphQL APIs right within Postman, which optimizes their workflow significantly. Moreover, it offers the capability to automate manual testing, integrating these tests into your CI/CD pipeline to prevent potential issues when new code is deployed. The platform also enables effective communication regarding API behavior by allowing users to simulate endpoints and their responses without needing a backend server. Additionally, you can create and publish visually appealing, machine-readable documentation, making your API more user-friendly and accessible. Regular monitoring of performance and response times keeps you updated on the health of your API, allowing for proactive management. Furthermore, Postman encourages a shared environment for both the creation and consumption of APIs, fostering real-time collaboration among team members, which can lead to more innovative solutions. This combination of features not only enhances productivity but also helps teams work more cohesively towards developing robust APIs. Postman’s AI Agent Builder is a comprehensive tool that accelerates the creation, testing, and deployment of AI agents by providing easy integration with APIs and LLMs. It allows users to quickly turn APIs into agent-ready tools, test LLMs’ performance and costs, and compare responses to choose the best model. The no-code platform features a visual canvas that lets developers design and configure agent workflows with ease.

The pdfRest API Toolkit was crafted by developers for developers, enabling swift integration of PDF workflows into business applications with ease and efficiency. This toolkit encompasses a comprehensive suite of PDF processing tools created by digital document specialists who possess decades of expertise to simplify your tasks: it offers conversions such as PDF to Word, PDF to Excel, and PDF to PowerPoint, along with functionalities like adding to PDFs, text extraction, querying PDFs, converting to various formats, and compressing PDFs. Additionally, it provides features for flattening forms, transparencies, annotations, and layers, as well as merging, splitting, encrypting, decrypting, and watermarking PDFs, along with form data management, OCR capabilities, and file uploads and zipping. Users will find extensive documentation featuring intuitive endpoints and parameters, along with sample code in .NET, JavaScript, Python, PHP, and cURL for every endpoint to facilitate smooth operation. Powered by the renowned Adobe® PDF Library™, it allows users to begin without any financial commitment and offers competitive pricing suitable for projects of any scale. The design of pdfRest emphasizes flexibility, allowing APIs to be accessed from any programming language capable of making API requests, making it a versatile choice for developers aiming to simplify their PDF workflow. Start your journey with your first API call today and experience the ease of PDF management firsthand.

Swagger Codegen enhances your development process by effortlessly producing server stubs and client SDKs for any API defined in the OpenAPI specification, enabling your team to focus more on the implementation and promotion of the API. The shift from design to development becomes significantly easier when integrating Swagger Codegen with SwaggerHub, as it allows for the creation of stubs in popular programming languages like Java, Scala, and Ruby with just a few clicks. This streamlined approach not only conserves valuable time but also fosters improved collaboration among team members during the entire API lifecycle. Furthermore, by reducing manual coding efforts, teams can redirect their energies toward innovation and feature enhancements, ultimately leading to a more robust and versatile API.

Konfig serves as a cutting-edge developer tool aimed at simplifying the process of creating SDKs, comprehensive documentation, engaging demos, and informative tutorials for REST APIs, ultimately enhancing the onboarding experience for external developers. By allowing users to easily import an OpenAPI Specification or Postman Collection, Konfig can swiftly generate SDKs in popular programming languages including TypeScript, Python, Java, C#, PHP, Ruby, Go, Swift, and Dart. The platform significantly improves the quality of these SDKs through a built-in linter that identifies and rectifies errors in the OpenAPI Specification, along with generating test cases to ensure that any updates to the API do not compromise existing SDK functionality. In addition, Konfig creates user-friendly, branded documentation that automatically updates in line with any changes made to the API specification, thus maintaining coherence between the documentation and the produced SDKs. Users have the added ability to develop interactive demos and tutorials utilizing familiar Markdown, which features the option to run code directly within the browser, fostering a more engaging and immersive learning experience. Overall, Konfig not only makes the technicalities of API integration easier but also significantly enhances the educational materials available for developers, paving the way for a more seamless and effective integration process. This innovative approach helps to bridge the gap between technical complexity and developer accessibility.

Tradefeeds is a provider of financial software that delivers both real-time and historical data on more than 7,000 publicly traded companies across the United States. Our diverse product range includes a multitude of resources, such as detailed company profiles, SEC filings, comprehensive financial statements, various financial ratios, technical indicators, as well as information on ETF and mutual fund holdings, stock identification, analyst ratings, and macroeconomic trends. Users can efficiently request information from the Tradefeeds Financial Database in various formats, including a JSON REST API or downloadable CSV and Excel files for their convenience. Notably, our intuitive API is compatible with a broad spectrum of programming languages, such as Javascript, JQuery, VueJS, Angular, JAVA, PHP, NodeJS, Python, Go, Ruby, C#, R, Strest, Rust, Swift, and Scala. Regardless of the format selected, data access is both immediate and effortless. Our clients span multiple sectors, including fintech companies, financial institutions, investors, traders, educational organizations, and software developers, which highlights the versatility and broad appeal of our offerings. With such a comprehensive array of services, Tradefeeds is positioned as a go-to solution for all your financial data requirements, ensuring that users can make informed decisions based on reliable and up-to-date information.

Refraction is an advanced code-generation platform designed specifically for developers, utilizing artificial intelligence to aid in the code writing process. This groundbreaking tool allows users to create unit tests, generate documentation, and refactor existing code, among other functionalities. Supporting an impressive array of 34 programming languages, including Assembly, C#, C++, CoffeeScript, CSS, Dart, Elixir, Erlang, Go, GraphQL, Groovy, Haskell, HTML, Java, JavaScript, Kotlin, LaTeX, Less, Lua, MatLab, Objective-C, OCaml, Perl, PHP, Python, R Lang, Ruby, Rust, Sass/SCSS, Scala, Shell, SQL, Swift, and TypeScript, Refraction caters to a diverse developer community. By adopting Refraction, countless developers worldwide are enhancing their productivity and efficiency, as the platform automates various tasks such as creating documentation, conducting unit tests, and refactoring code. This innovation empowers programmers to focus on the more vital elements of software development while improving overall workflow. With the help of AI, users can easily refactor, optimize, troubleshoot, and conduct style checks on their code. Moreover, it aids in generating unit tests that are compatible with multiple testing frameworks, thereby elucidating the intent of the code and making it more understandable for others. Start harnessing the potential of Refraction today and elevate your coding journey to new heights, discovering newfound efficiencies and capabilities along the way.

Aviyair is a provider of aviation data, offering essential flight information through a JSON REST API. Their services are categorized into seven distinct types of flight data, each associated with a specific API: Flight Tracker and Status API, Global Flight Schedules, Historical Flight Schedules API, Future Schedules API, Flight Delay API, Airline Routes API, and Airport and City Autocomplete Location API. These APIs are designed to work seamlessly with numerous programming languages, such as JAVA, Javascript, JQuery, VueJS, NodeJS, Angular, PHP, Ruby, Python, C#, Go, R, Strest, Rust, Scala, and Swift. Moreover, clients have the flexibility to request downloadable databases in both Excel and CSV formats, catering to varied preferences. Aviyair's customer base is broad, including travel companies, tour operators, small to medium-sized enterprises that depend on aviation data, insurance agencies, airports, and various professionals in the air transport industry. This broad spectrum of data access and format options ensures that Aviyair effectively addresses the diverse requirements of its clients, enhancing their operational capabilities and decision-making processes. In doing so, Aviyair not only provides data but also contributes to improving efficiency within the aviation sector.

Commoditic offers financial API data that covers both current and historical prices for a variety of significant commodity asset categories. This pricing information encompasses metals, energy resources, and industrial commodities. Users can choose between two delivery methods: a JSON REST API or downloadable databases in Excel and CSV formats. Additionally, the Metal Prices API, Energy Prices API, and Agricultural Commodities API are compatible with various programming languages, including Javascript, JQuery, and VueJS. Regardless of their chosen method for data delivery, users can access commodity pricing data right away. Commoditic caters to a diverse clientele, including fintech companies, financial institutions, traders, academic institutions, and independent developers, helping them enhance and streamline their projects with ease and efficiency. By providing versatile data solutions, Commoditic empowers its users to make informed decisions in the fast-paced commodity market.

Restify is a robust framework for Node.js tailored for creating RESTful web services that maintain semantic accuracy while meeting the demands of large-scale production environments. Its design prioritizes both introspection and high performance, making it a preferred option among many of the largest Node.js applications around the world. To effectively operate at scale, it is crucial to trace issues back to their origins, necessitating the ability to filter out relevant data from irrelevant noise. With a keen emphasis on post-mortem debugging, Restify is engineered to facilitate this process. A key goal of the project is to adhere closely to established specifications, and you will often find references to various RFCs in both the code and GitHub discussions. Many reputable companies rely on Restify to power their significant Node.js deployments, underscoring its critical role in shaping the future of RESTful development with Node.js. Setting up a server using Restify is not only intuitive but also efficient, employing a Sinatra-like syntax for route definition and handler functions, akin to other Node.js REST frameworks. This ease of setup enables developers to launch their services swiftly and with minimal hassle, further enhancing productivity and responsiveness in development workflows. Overall, Restify stands out as a vital tool in the arsenal of developers working with Node.js.

Building RESTful web services that effectively manage data exposure in various formats while navigating the intricacies of client-server communication can present significant challenges, particularly when lacking appropriate tools. To simplify the development of RESTful web services and their corresponding clients in the Java ecosystem, the JAX-RS API was introduced as a standardized and versatile solution. The Jersey framework for RESTful web services 3.x stands out as an open-source, production-ready option that fully supports Jakarta RESTful web services 3.0. In addition to acting as the JAX-RS reference implementation, Jersey also provides its own API, which enhances the functionality of the JAX-RS toolkit with supplementary features. It guarantees that the JAX-RS API remains up-to-date by delivering consistent releases of high-quality reference implementations that work harmoniously with GlassFish. Moreover, Jersey offers various APIs that encourage extensions, thereby nurturing a dynamic community of users and developers. Consequently, developers can significantly streamline the process of crafting robust RESTful web services in Java, ultimately leading to the development of more innovative and effective applications in the tech landscape. With these advancements, the potential for creating cutting-edge solutions becomes increasingly attainable.

Leverage the full potential of AI-enhanced API documentation to produce visually striking, manageable, and interactive documents with a single upload. You have the option to import your API collection either manually or automatically using our integration tools, which are compatible with well-known platforms like Postman. Whether you're working on a REST, GraphQL, or any other API format, we offer extensive support. Our platform generates detailed explanations and summaries, leading to outstanding API documentation that remains precise and up-to-date. Enjoy effortless content searching and automated code generation, with the added advantage of documentation that refreshes whenever your code is modified. We provide integrations for widely used platforms, including GitHub, GitLab, Bitbucket, and VS Code. Additionally, you can customize your API documentation's appearance by tweaking colors and other visual features to reflect your brand identity, ensuring a cohesive look with your website. With a few straightforward commands in your preferred development tools and source code editors, crafting and sustaining attractive API documentation becomes a breeze, significantly improving both functionality and visual appeal. This method not only saves you valuable time but also enhances the overall quality and efficiency of your documentation process, ultimately benefiting your development workflow.

Assessing and validating REST services in Java often presents more difficulties than with dynamic languages such as Ruby and Groovy. Nonetheless, REST Assured offers a user-friendly experience similar to those languages, which simplifies the process for developers working within the Java environment. By utilizing REST Assured, Java developers can effectively optimize their testing workflows, resulting in a notable boost in productivity. This tool not only mitigates complexity but also allows for a more efficient approach to service verification.

AutoRest serves as an effective tool that streamlines the development of client libraries for engaging with RESTful web services. It utilizes a specification in the OpenAPI format, which delineates the REST API, thereby simplifying the generation of client code across a variety of programming languages, including C#, Java, Python, TypeScript, and Go. By automating this code generation, AutoRest enhances both the consistency and efficiency when working with APIs, drastically reducing the manual effort typically required for creating and maintaining client libraries. The tool incorporates a flexible pipeline that processes OpenAPI specification files, transforming them into a code model that can be leveraged by language-specific generators to create client code that adheres to the unique design principles of each programming language. With support for both OpenAPI 2.0 and 3.0, AutoRest ensures compatibility with a wide range of APIs, enabling developers to work effortlessly across various platforms. Furthermore, AutoRest's installation process is simple and user-friendly, compatible with Windows, macOS, and Linux, and can be efficiently conducted using Node.js, making it readily available for developers eager to improve their API integration workflows. Overall, this accessibility and ease of use contribute to its popularity among developers looking to optimize their interaction with RESTful services.

DynamicPDF API (dpdf.io) is a comprehensive REST API solution that empowers developers to effortlessly integrate sophisticated PDF functionalities into their applications, guaranteeing rapid performance and global accessibility. It offers a wide array of REST endpoints for various tasks, including generating PDFs from images, HTML, Word, Excel, or template data, as well as merging documents, converting formats, filling and flattening forms, adding barcodes and stamps, encrypting files for security, and extracting text, metadata, or XMP data. In addition, DynamicPDF provides an online Designer tool, enabling users to create PDF reports and templates visually, alongside a selection of client libraries in popular programming languages such as Node.js, .NET, Java, PHP, Go, Python, and Ruby, which streamline integration without requiring direct HTTP calls. The API is engineered for rapid PDF creation and assembly, typically in milliseconds, leveraging a scalable infrastructure that directs requests to the nearest global zone while ensuring data privacy by refraining from storing client information unless specifically requested. This robust set of features not only makes DynamicPDF indispensable for developers aiming to elevate their applications with PDF capabilities but also enhances user experience through its efficient and user-friendly design. Furthermore, the platform continues to evolve, regularly updating its offerings to meet the changing needs of developers in a fast-paced digital landscape.

Effortlessly create SDKs and documentation similar to Stripe's, customized specifically for your API. With type-safe SDKs available in popular programming languages, Fern simplifies the intricate process of generating and distributing client libraries, allowing your team to focus on developing the API itself. You can easily import your API definition in either OpenAPI format or Fern's simpler alternative. Select from an array of code generators, including TypeScript, Python, Java, Go, Ruby, C#, and Swift, to meet your specific requirements. Fern also manages semantic versioning and publishes packages to multiple registries such as npm, pypi, and maven, ensuring smooth integration into your projects. Additionally, you can benefit from visually appealing API documentation that reflects your brand's identity, providing a consistent user experience. This not only enhances the functionality of your API offerings but also improves their overall presentation, making them more attractive to potential users. Such comprehensive tools empower your development process and elevate your API's accessibility and usability.

Converting HTML files into PDFs involves various considerations to ensure top-notch print quality. Whether you are changing a webpage or applying Database Publishing techniques, there are effective ways to transform even complex HTML into PDF format. PDFreactor stands out as a powerful solution for HTML to PDF conversion, featuring a vast array of functionalities that exceed those of many other options, thereby enhancing your overall conversion experience. It allows for seamless conversion from HTML to PDF and provides excellent support for HTML5, CSS3, and JavaScript. This software comes equipped with APIs that are compatible with numerous programming languages, such as JavaScript, Java, PHP, .NET, Python, Ruby, Perl, Node.js, as well as both SOAP and REST protocols, plus an option for a Docker Image. Furthermore, it offers a complimentary personal license, making PDFreactor a superb choice for web applications like Database Publishing, Web-to-Print, PIM, DMS, MDM, DAM, WCMS, and VDP. Typically utilized for server-side HTML to PDF conversions, it can manage everything from documents driven by dynamic data—like reports, invoices, and forms—to producing sophisticated, high-quality PDFs for a variety of applications. By leveraging PDFreactor, users can effectively meet diverse printing requirements while upholding exceptional quality standards. This versatility makes it not only a practical tool but also a valuable asset for professionals looking to streamline their document creation processes.

Browshot offers a versatile screenshot service and API that allows developers to easily capture high-resolution images of any live website across various devices and screen sizes, accommodating both desktop and mobile browsers that support HTML5, CSS3, and JavaScript for accurate visual representation. Its powerful REST API includes user-friendly and thorough features that enable users to automate screenshot requests, create thumbnails in multiple sizes and aspect ratios, and perform full-page captures while allowing customization options such as pre-capture delays, custom headers, and CSS selector targeting; additionally, the outputs can be effortlessly retrieved, hosted, downloaded, or sent directly to AWS S3/CDN for storage. With compatibility for more than 30 different browser configurations, Browshot also supplies open-source libraries and command-line tools that support smooth integration with various programming languages including Python, PHP, Perl, Ruby, C#, and Node.js, making it an adaptable solution for developers. This service is particularly beneficial for those aiming to improve their web applications through reliable screenshot functionalities, thereby enhancing user experience and interface design. As a result, Browshot stands out as a comprehensive tool for both developers and businesses seeking efficient visual representation of their online content.

Effortlessly and quickly deploy your applications to production with Koyeb, which enhances backend performance using premium edge hardware. By connecting your GitHub account to Koyeb, you can easily choose a repository for deployment while we manage the infrastructure behind the scenes. Our platform streamlines the building, deploying, running, and scaling of your application, eliminating any need for initial setup. Simply push your code, and we will handle everything else, providing rapid continuous deployment for your application. With built-in version control for all deployments, you can innovate confidently without the risk of disruption. Create Docker containers and host them on any registry, enabling you to deploy your latest version globally with just one API call. Enjoy effective collaboration with your team, as our integrated CI/CD features provide real-time previews after each code push. The Koyeb platform allows for a diverse combination of languages, frameworks, and technologies, ensuring you can deploy any application without modifications due to its inherent compatibility with many popular programming languages and Docker containers. Koyeb intuitively recognizes and builds applications written in languages like Node.js, Python, Go, Ruby, Java, PHP, Scala, and Clojure, guaranteeing a smooth deployment process. Furthermore, Koyeb gives you the flexibility to innovate and scale without boundaries, making it a powerful choice for developers looking to maximize efficiency. This comprehensive approach to deployment enables teams to focus on creativity and development without getting bogged down by infrastructure concerns.

An assertively opinionated framework tailored for creating RESTful APIs using Ruby. This framework prioritizes effective practices and simplified conventions to improve the overall development experience while encouraging consistency and efficiency.

GrabzIt is a multifaceted web capture solution that offers APIs and online tools designed to convert web content into a variety of usable formats, such as high-resolution images (including PNG, JPG, WEBP, TIFF, BMP, SVG), searchable PDFs, editable DOCX documents, rendered HTML, icons, and animated GIFs created from online videos, as well as structured data formats like CSV, JSON, or Excel extracted from HTML tables. It operates by fetching data from URLs or raw HTML while adhering to modern web standards, including CSS3, web fonts, and JavaScript, to guarantee accurate rendering. The platform features a RESTful API that supports numerous programming languages—such as PHP, Python, Node.js, Ruby, C#, and Perl—allowing developers to efficiently embed web capture functionalities into their applications, optimize workflows, and customize various options like browser dimensions, capture timing, specific element screenshots, custom cookies, and watermarks. Moreover, GrabzIt includes a web scraper that proficiently retrieves data from websites and a screenshot tool that enables automated, scheduled captures with functionalities for archiving and exporting to local storage. Overall, this dynamic platform empowers users to effectively leverage web data and media, making the process more accessible and efficient than ever before. Additionally, the continuous updates ensure that users benefit from the latest features and improvements.

Maintain the integrity of your mailing lists by eliminating invalid, dubious, and erroneous email addresses to protect your sender reputation. By utilizing Verifalia's email verification service, you can reduce bounce rates and prevent crucial emails from being misdirected to your clients' spam folders. This service proficiently identifies not just invalid emails, but also potentially harmful variants such as spam traps, role accounts, catch-all servers, and temporary email addresses. Furthermore, you can leverage our exclusive premium validation options to address even the most complex email servers with remarkable precision. The Verifalia email verification API provides significant support through two effective methods. Our secure RESTful HTTPS API can be easily integrated, with SDKs available for various programming languages including .NET, JavaScript (Node.js and browser), PHP, Ruby, and Java. What sets Verifalia apart is our offering of three unique levels of service quality, each backed by detailed response codes, all in real time! Our flexible pricing model acknowledges that business needs can change over time. Additionally, our services are crafted to adapt alongside your evolving requirements, guaranteeing that you consistently have access to top-notch email verification solutions. With Verifalia, you can ensure your email campaigns are not only effective but also maintain a strong reputation in the digital landscape.

Toolpad Core is a self-hosted, low-code solution tailored for full-stack and back-end developers, allowing them to effortlessly craft admin interfaces, dashboards, and CRUD applications via an easy-to-use drag-and-drop interface while retaining full control over the underlying code. It harnesses the robust React component ecosystem from MUI, which features both MUI Core and X libraries, and includes a query builder similar to Postman for REST APIs, enabling the import of custom React components and smooth integration with Node.js backends, thus streamlining API setup. By running exclusively in a local environment, Toolpad stores configurations in files that work well with version control systems, which aids developers in transitioning from low-code prototypes to complete production features using JavaScript and TypeScript. Its architecture is designed to work seamlessly with React, TypeScript, and Next.js, assisting in the integration with local IDE workflows, which effectively bridges the gap between rapid user interface development and the requirements for sustainable and production-ready software. This positions Toolpad as an excellent option for developers aiming to increase their efficiency while still enjoying the versatility that traditional coding offers. Furthermore, its user-friendly interface and powerful capabilities make it an attractive choice for teams looking to innovate and streamline their development processes.

Discover a highly adaptable code editor that supports over 60 programming languages across nine distinct platforms. Effortlessly build or compile your projects, and if you encounter an error, simply double-click on the message in the Build window to jump directly to the corresponding line of code. Each error and warning is marked with a clear icon in the left margin, allowing for quick identification. Furthermore, the overview bar adjacent to the vertical scrollbar visually indicates errors and warnings, reflecting their location relative to your current view in the document. To streamline your workflow, you can either drag the scrollbar slider to a specific mark or click on it to quickly bring that section into focus. SlickEdit also includes an integrated debugging tool that provides an intuitive interface for various debuggers. You can easily set breakpoints, step through code execution, inspect the stack, and analyze variables and their members, encompassing all the core functionalities expected from a debugging tool. Moreover, SlickEdit supports debugging across a wide range of languages, such as GNU C/C++, Java, WinDbg, Clang C/C++ LLDB, Google Go, Python, Perl, Ruby, PHP, XCode, Scala, C# with Mono, Visual Basic with Mono, and Android JVM/NDK. This extensive support not only enhances its versatility but also positions SlickEdit as an indispensable resource for developers working in varied environments, ensuring a smooth and efficient coding experience. Such comprehensive capabilities make it an essential asset for programmers tackling diverse projects and languages.

Conda is an open-source tool designed for the effective management of packages, dependencies, and environments across various programming languages such as Python, R, Ruby, Lua, Scala, Java, JavaScript, C/C++, Fortran, and many others. This adaptable system functions smoothly on a variety of platforms including Windows, macOS, Linux, and z/OS. By allowing rapid installation, execution, and upgrading of packages along with their dependencies, Conda boosts efficiency in development workflows. It also simplifies the tasks of creating, saving, loading, and switching between different environments on a user's machine. Initially developed for Python applications, Conda has broadened its scope to support software packaging and distribution for any programming language. As a robust package manager, it assists users in finding and installing the necessary packages they need for their projects. If you encounter a situation where a package requires a different version of Python, you won’t have to resort to a different environment manager; Conda can handle that seamlessly. You can easily create an entirely new environment tailored to that specific Python version, while continuing to use your standard version in the default environment. This remarkable flexibility not only streamlines development but also makes Conda an essential asset for developers with varied software needs, catering to the complexities of modern programming environments.

Boost the productivity of API development for individuals, groups, and large corporations with the comprehensive suite of tools offered by Swagger, both in its open-source and professional versions. Learn how Swagger can facilitate the efficient design and documentation of APIs on an extensive scale. The power of Swagger's tools is anchored in the OpenAPI Specification, which is recognized as the standard for crafting RESTful APIs in the industry. A variety of tools are available to create, edit, and distribute OpenAPI definitions among various stakeholders. To provide extensive support for OpenAPI workflows, SwaggerHub stands out as a scalable platform solution. Countless API developers, teams, and organizations have gained significant advantages from using Swagger's tools to build outstanding APIs. When utilizing Swagger, you are equipped with the most powerful and user-friendly tools that maximize the capabilities of the OpenAPI Specification, ensuring a smooth development process adaptable to changing requirements. This adaptability not only enhances current workflows but also prepares teams for future challenges in API development.

Casbin is a powerful open-source library tailored for authorization, facilitating the use of various access control models like Access Control Lists (ACL), Role-Based Access Control (RBAC), and Attribute-Based Access Control (ABAC). This library supports a multitude of programming languages such as Golang, Java, C/C++, Node.js, JavaScript, PHP, Laravel, Python, .NET (C#), Delphi, Rust, Ruby, Swift (Objective-C), Lua (OpenResty), Dart (Flutter), and Elixir, allowing developers to benefit from a consistent API experience across multiple platforms. By employing the PERM metamodel, Casbin empowers developers to create access control models through configuration files, simplifying the process of modifying or upgrading authorization systems with ease. Furthermore, it offers a range of policy storage options that are compatible with various databases, including MySQL, PostgreSQL, Oracle, MongoDB, Redis, and AWS S3, catering to a wide array of storage preferences. In addition, Casbin features a role manager that adeptly handles RBAC role hierarchies and supports filtered policy management, thereby improving access enforcement efficiency. Consequently, developers find it straightforward to customize Casbin to meet their unique project needs while upholding strong security standards. This flexibility and ease of integration further solidify Casbin's reputation as a go-to solution for managing authorization effectively across diverse applications.

NSwag is a powerful toolchain specifically designed for managing Swagger/OpenAPI versions 2.0 and 3.0, catering to environments such as .NET, .NET Core, ASP.NET Core, and TypeScript, and it is built using C#. This utility allows developers to generate OpenAPI specifications from their existing API controllers and subsequently produce client code based on those specifications. By integrating the features usually found in both Swashbuckle for OpenAPI/Swagger creation and AutoRest for client code generation, NSwag simplifies the entire process into an efficient and cohesive toolchain. Key features include the generation of both Swagger 2.0 and OpenAPI 3.0 specifications directly from C# ASP.NET (Core) controllers, the ability to serve these specifications through ASP.NET (Core) middleware with integrated options like Swagger UI or ReDoc, and the functionality to create C# or TypeScript clients or proxies from the generated specifications. Additionally, NSwag offers various usage options, such as an intuitive graphical interface called NSwagStudio, command-line tools compatible with Windows, Mac, and Linux, and smooth integration into C# projects via NuGet packages, making it a flexible choice for developers. The extensive capabilities of NSwag not only streamline API development but also enhance the overall process of client generation, proving to be an invaluable asset for developers looking to optimize their workflow. With the continuous evolution of APIs, having a tool like NSwag at one’s disposal can greatly improve the speed and quality of development efforts.

DL4J utilizes cutting-edge distributed computing technologies like Apache Spark and Hadoop to significantly improve training speed. When combined with multiple GPUs, it achieves performance levels that rival those of Caffe. Completely open-source and licensed under Apache 2.0, the libraries benefit from active contributions from both the developer community and the Konduit team. Developed in Java, Deeplearning4j can work seamlessly with any language that operates on the JVM, which includes Scala, Clojure, and Kotlin. The underlying computations are performed in C, C++, and CUDA, while Keras serves as the Python API. Eclipse Deeplearning4j is recognized as the first commercial-grade, open-source, distributed deep-learning library specifically designed for Java and Scala applications. By connecting with Hadoop and Apache Spark, DL4J effectively brings artificial intelligence capabilities into the business realm, enabling operations across distributed CPUs and GPUs. Training a deep-learning network requires careful tuning of numerous parameters, and efforts have been made to elucidate these configurations, making Deeplearning4j a flexible DIY tool for developers working with Java, Scala, Clojure, and Kotlin. With its powerful framework, DL4J not only streamlines the deep learning experience but also encourages advancements in machine learning across a wide range of sectors, ultimately paving the way for innovative solutions. This evolution in deep learning technology stands as a testament to the potential applications that can be harnessed in various fields.

Finnworlds operates as a vendor dedicated to delivering both real-time and historical financial data, with a particular emphasis on developing user-friendly APIs that seamlessly integrate with numerous programming languages such as JSON, Python, Scala, PHP, Java, C#, Rust, Strest, and Ruby, while also providing sophisticated downloadable databases. Their cutting-edge technological solutions are pivotal in supplying detailed company and financial information, targeting both domestic (U.S.) and global markets. Finnworlds features a wide-ranging array of data products that include basic company information, detailed financial documents like balance sheets, cash flow and income statements, SEC filings, over 70 financial ratios, more than 100 stock technical indicators, analyst ratings, ETFs, mutual funds, and stock identifiers, alongside macroeconomic trends and stock search data. The clientele for these data services is varied, consisting of fintech startups, educational institutions, independent developers, quantitative investment firms, financial institutions, research organizations, as well as both experienced traders and those new to investing, including consulting firms, among others. This extensive range of users underscores the versatility and relevance of Finnworlds' products within the financial landscape. By catering to such a broad spectrum of clients, Finnworlds effectively demonstrates the significance of their offerings across different facets of the financial industry.

Mailtrap is a modern email delivery platform for developer and product teams sending emails at scale. It provides a flexible RESTful API and SMTP service with a focus on high inboxing rates, fast delivery, and 24/7 technical support from deliverability experts. Mailtrap ensures 99.99% uptime with dedicated IPs, auto warm-up, and sender reputation protection through multi-tenant accounts. Quick integration is available via ready-to-use code snippets and SDKs for major programming languages, with 30-day access to email logs. Trusted by over 150,000 monthly active users, including Yelp, PayPal, Atlassian, and Adobe.