Alternatives to Swagger Codegen
Compare Swagger Codegen alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Swagger Codegen in 2025. Compare features, ratings, user reviews, pricing, and more from Swagger Codegen competitors and alternatives in order to make an informed decision for your business.
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1
JOpt.TourOptimizer
DNA Evolutions GmbH
JOpt.TourOptimizer is an adaptable component to solve VRP, CVRP, and VRPTW class problems for any route optimization in logistics or similar fields. JOpt.TourOptimizer gives full access to modern optimization strategies and already includes many useful functions and algorithms to model various tour optimization problems. The JOpt.TourOptimizer library is easily integrated into any product. It can be customized to meet special requirements or adapt to the industries’ specific needs in which your software products are used. JOpt.TourOptimizer – enables you to enhance your product or project by seamlessly integrating DNA’s tour and resource optimization engine. It comes as a Java library or in Docker Container utilizing the Spring Framework and Swagger. -
2
1inch Business
1inch
Ship scalable, secure applications with 1inch Business: your complete Web3 API suite. 1inch protocols access hundreds of liquidity sources across 13+ chains, including Solana, for secure swaps at the best rates. Builders can unlock them all with 1inch Business: 17 APIs that bring you the technologies you need to scale. The 1inch Swap API gives you optimized routes with the new Pathfinder algorithm, as well as intent-based and cross-chain swaps, with MEV protection and zero gas fees as standard. The rest offer everything from spot price and node access to limit orders and dynamic gas pricing. With complete usage statistics and API management, custom plan configuration, and a one-click Swagger UI - 1inch Business gives you the tools you need to build your project. -
3
Archbee
AiurLabs
Documentation tool for high-performing teams. Archbee is the place to centralize your company's information. Unify knowledge in product, engineering, support, marketing, sales. Use cases: • Manage team knowledge • Developer & API docs • Documentation sites • Document internal processes • Collaborate on documents • Onboard & train teammates • Create documentation for your customers • Bring your own domain Integrations: Slack, Airtable, Loom, Trello, Lucidchart, Typeform, Mindmeister, Prezi, Miro, Google Docs, Google Sheets, Google Slides, Figma, Invision, Framer, Abstract, Marvel, Github, GraphQL, Swagger/Open API, Numeracy, Mode Analytics, Codepen, Intercom, Google Analytics.Starting Price: $60 per month -
4
OpenAPI Generator
OpenAPI Generator
OpenAPI Generator is an open-source tool that automatically generates client libraries, server stubs, API documentation, and configuration files from an OpenAPI Specification (OAS) document. It supports a wide range of programming languages and frameworks, making it easier for developers to integrate APIs into their applications. By automating the creation of boilerplate code, OpenAPI Generator reduces development time and ensures consistency in API interactions. It allows teams to focus on implementing business logic rather than dealing with repetitive tasks like data serialization, deserialization, and HTTP request handling. The tool is widely used in API-driven development, enabling seamless integration of third-party services and simplifying the process of keeping API consumers and providers in sync.Starting Price: Free -
5
AutoRest
Microsoft
The AutoRest tool generates client libraries for accessing RESTful web services. Input to AutoRest is a spec that describes the REST API using the OpenAPI specification format and streamlines the creation of client code across multiple programming languages, including C#, Java, Python, TypeScript, and Go. This automation enhances consistency and efficiency in API consumption, reducing the manual effort required to develop and maintain client libraries. AutoRest operates through a flexible pipeline that processes OpenAPI input files, transforming them into a code model which is then utilized by language-specific generators to produce client code adhering to each language's design guidelines. The tool supports both OpenAPI 2.0 and 3.0 specifications, ensuring compatibility with a wide range of APIs. Developers can install AutoRest on Windows, macOS, or Linux systems, with installation facilitated via Node.js.Starting Price: Free -
6
Kiota
Microsoft
Kiota is a client, plugin, and manifest generator for HTTP REST APIs described by OpenAPI. Available as a command-line tool and a Visual Studio Code (VS Code) extension, Kiota enables developers to search for API descriptions, filter and select specific endpoints, and generate models and a chained method API surface in various programming languages. This approach eliminates the need to depend on different API clients for each API and allows for precise generation of the required API surface area. Additionally, Kiota facilitates participation in the Microsoft Copilot ecosystem by enabling the generation of API plugins. The VS Code extension enhances the Kiota experience with a rich user interface, supporting features such as searching for API descriptions, filtering endpoints, and generating API clients. Users can select desired endpoints and generate clients, plugins, or other outputs, with completion notifications and easy access to generated outputs within the workspace.Starting Price: Free -
7
NSwag
Rico Suter
NSwag is a comprehensive Swagger/OpenAPI 2.0 and 3.0 toolchain for .NET, .NET Core, ASP.NET Core, and TypeScript, written in C#. It enables developers to generate OpenAPI specifications from existing API controllers and create client code from these specifications. NSwag combines functionalities similar to Swashbuckle (for OpenAPI/Swagger generation) and AutoRest (for client generation) into a single toolchain, eliminating the need for both. Key features include the ability to generate Swagger 2.0 and OpenAPI 3.0 specifications from C# ASP.NET (Core) controllers, serve these specifications via ASP.NET (Core) middleware with integrated Swagger UI or ReDoc, and generate C# or TypeScript clients/proxies from the specifications. NSwag offers multiple usage methods, including a user-friendly Windows GUI (NSwagStudio), command-line interfaces compatible with Windows, Mac, and Linux, and integration into C# code via NuGet packages.Starting Price: Free -
8
Swagger
SmartBear
Simplify API development for users, teams, and enterprises with the Swagger open source and professional toolset. Find out how Swagger can help you design and document your APIs at scale. The power of Swagger tools starts with the OpenAPI Specification — the industry standard for RESTful API design. Individual tools to create, update and share OpenAPI definitions with consumers. SwaggerHub is the platform solution to support OpenAPI workflows at scale. Swagger open source and pro tools have helped millions of API developers, teams, and organizations deliver great APIs. Swagger offers the most powerful and easiest to use tools to take full advantage of the OpenAPI Specification. -
9
SwaggerHub
SmartBear
SwaggerHub is an integrated API design and documentation platform, built for teams to drive consistency and discipline across the API development workflow. Accelerate your team’s design process without any loss in quality or organizational style consistency with a powerful Editor that’s fully compliant with the latest Swagger (OpenAPI) standards. A Powerful Editor equipped with smart error feedback and syntax auto-completion. Style Validators for ensuring design consistency across multiple APIs. API Mocking to virtualize operations without any code. Domains for storing, reusing and referencing common OAS syntax across multiple APIs. Have your API design and development centralized on a single location, allowing your teams to seamlessly collaborate on new APIs, or discover existing APIs on a centralized platform. Coordinate your entire API lifecycle from a central internal repository, hosted on the cloud.Starting Price: $90 per month -
10
Autostub
Torry Harris Business Solutions
AutoStub® is an essential tool to speed up API development. It can significantly reduce your build time by quickly designing, prototyping, documenting and testing APIs. AutoStub® creates a functional mock that allows developers to work with APIs before they are fully implemented. Available as a SaaS offering, for On-Premise deployments and in a hybrid model. Key Features Simulate ReST and SOAP services Input format - Swagger files for ReST, WSDL files for SOAP services Support for GET, POST, PUT, DELETE methods in ReST Create WSDL/Swagger 2.0 based mock services; generate dummy data for API testing Get an endpoint URL that can be used on a third party SOAP client tool Improves quality by facilitating functional testing Can handle multiple test scenarios together -
11
DapperDox
DapperDox
DapperDox is open source, and provides rich, out-of-the-box, rendering of your OpenAPI specifications, seamlessly combined with your GitHub flavoured Markdown documentation, guides, and diagrams. Publish your API Swagger specifications like never before. Document multiple API specifications as a suite of products, and cross-reference as required. The built-in API explorer enables API experimentation from within the documentation pages, and can seamlessly integrate into your authentication and API key model. DapperDox can proxy your developer platform, allowing full integration of API key generation and management alongside your specifications and guides. Change themes and present your documentation in the style you like. DapperDox was created by API documentation authors for one purpose, to improve the quality and usability of the API documentation they were providing for other developers.Starting Price: Free -
12
Bump.sh
Bump.sh
Bump.sh is the place for API developers to centralize all of their API documentation. Working with REST, Event-Drivent Architecture, or a mix of API technologies? Bump.sh is the only tool on the market that supports OpenAPI/Swagger, AsyncAPI, and soon more (such as GraphQL, SOAP, and gRPC). Plug Bump.sh into your CI, use our CLI, or upload your specification files manually, and benefit from a stunning UI that definitely contrasts with the legacy tools on the market. Enjoy all of the nifty UX details: we know devs will like it, as they were imagined by devs. Unique on the market: every time you publish a new version of your API documentation, Bump.sh automatically detects changes, publishes a changelog, and sends alerts to subscribe readers if the changes break anything.Starting Price: $149 per month -
13
Docsie
Docsie
Docsie is an award-winning digital documentation and knowledge management platform based in Ontario, Canada. You can access Docsie through a SaaS web application to create & edit documentation from any location. Then, you can publish content to a dynamic knowledge portal that users can access whenever they need information! Docsie offers powerful business-grade features to write & manage product documentation: - Docsie Pilot onboarding - Custom portal design & optional training for paid plans - Internal & external portal for employees & end-users - Workspaces - Knowledge base analytics & user feedback collection - Free custom domain - Markdown import & export - WYSIWYG Editor - iFrame embed - SwaggerAPI import - Snippet, fragment, document & topic templates - Help center & in-app help interface - Guided tour builder - Version & language management - Webhooks - AI translation & content generation - Project management - RBAC/JWT/SSO for securityStarting Price: $39 per month (annual) -
14
Fern
Fern
Stripe-level SDKs and Docs for your API. Offer type-safe SDKs in the most popular languages. Let Fern do the heavy lifting of generating and publishing client libraries so your team can focus on building the API. Import your API definition, whether it's in OpenAPI or Fern's simpler format. Select which code generators you'd like to use: TypeScript, Python, Java, Go, Ruby, C#, Swift. Fern semantically versions and publishes packages to each registry (e.g. npm, pypi, maven). Beautiful API documentation that reflects your brand.Starting Price: $250 per month -
15
REST United
REST United
REST United is a platform that simplifies the process of generating Software Development Kits (SDKs) for REST APIs across multiple programming languages, including PHP, Python, Ruby, ActionScript (Flash), C#, Android, Objective-C, Scala, and Java. In just five simple steps, users can create SDKs accompanied by highly customizable documentation featuring easy-to-follow example code, enhancing developer engagement. The platform also leverages the Postman Chrome plug-in to facilitate testing and debugging of REST APIs, streamlining the development workflow. For those designing their own REST APIs using frameworks like Node.js, Ruby Sinatra, Scala Scalatra, or Java JAX-RS, REST United offers assistance in generating server-side code. Support is readily available, with the promise of responses within 12 hours to any inquiries. Overall, REST United aims to make REST API development more accessible and efficient by providing tools that bridge the gap between API design and implementation.Starting Price: $1 per month -
16
CodeGen
Salesforce
CodeGen is an open-source model for program synthesis. Trained on TPU-v4. Competitive with OpenAI Codex.Starting Price: Free -
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42Crunch
42Crunch
Your most valuable intelligence isn’t AI, it’s your developers. Empower them with tools to be the driving force behind API security – ensuring continuous, unparalleled protection across the entire API lifecycle. Push your OpenAPI definition to your CI/CD pipeline and automatically audit, scan and protect your API. Audit your OpenAPI / Swagger file against 300+ security vulnerabilities, we’ll rank them by severity level and tell you exactly how to fix them – making security a seamless part of your development lifecycle Enforce a zero-trust architecture by ensuring all your APIs meet a set security standard before production, scan the live API endpoints for potential vulnerabilities, and automate redeployment. Ensure security of all your APIs from design to deployment, get detailed insight about attacks on APIs in production – and protect against threats – without impacting performance. -
18
Konfig
Konfig
Konfig is a developer tool that automates the generation of SDKs, documentation, demos, and tutorials for REST APIs, facilitating seamless onboarding for external developers. By importing an OpenAPI Specification or Postman Collection, Konfig automatically produces SDKs in popular programming languages, including TypeScript, Python, Java, C#, PHP, Ruby, Go, Swift, and Dart. The platform ensures high-quality SDKs by identifying and rectifying errors in the OpenAPI Specification through its linter and writing test cases to prevent API updates from breaking existing SDKs. Konfig also generates branded, user-friendly documentation that auto-updates with any changes to the API specification, maintaining consistency between documentation and SDKs. Additionally, it allows for the creation of engaging demos and tutorials using familiar Markdown, enabling users to run code in-browser for hands-on learning. -
19
RestSequence
Opcito
RestSequence is a no-code platform that allows users to create end-to-end product test workflows by using underlying product-under-test APIs. It enables users to create, manage, and execute test cases and scenarios efficiently. By harnessing the power of their application's Swagger API collection, RestSequence empowers users to quickly design and test scenarios, guaranteeing superb application performance and reliability. With RestSequence, you can onboard generated test scenarios, integrate them into your CI/CD pipeline, and run them on nightly, weekly, or release builds. The best part is that the output file generated once using RestSequence can be used for future testing scenarios without making any changes. RestSequence reads and parses API details (method, URL, payload, request body, etc.) from a Swagger specification file. It tests each API endpoint for correct responses, status codes, required fields, and invalid data, tracking the created resources during test execution. -
20
RepreZen API Studio
RepreZen
Build APIs that click with client apps. RepreZen API Studio is an integrated workbench that brings API-first design into focus for your whole team, harmonizes your API designs, and generates APIs that click into client apps. Effortlessly. Full-featured OpenAPI editor with content assist, customizable templates, outline navigation & more for fast, focused API design. Live documentation view gives you immediate clarity & insight from the API user's perspective. Interactive diagram lets you visualize the API as you design. Generate & view in any browser to give API users a fast, intuitive overview. Split a large Swagger API spec into multiple files, even share & reuse API components across projects & teams! Edit, navigate, document & generate, all fully compliant with OpenAPI standards. Consolidate & simplify complex multi-file projects to a single file, for easy downstream code generation & docs presentation.Starting Price: $22 per month -
21
Procurement Service Bus (PSB)
eConnect
The Procurement Service Bus (PSB) provides a cloud managed connection to eDelivery networks like the Peppol network. Specially designed for large volumes and low latency with automatic scaling. Build with redundancy and high availability in mind. The shared cloud approach is centrally monitored for optimal utilization and predictable costs. Additional services are available, like target-transformation, automatic retry and party discovery. The Procurement Service Bus is more than just an AccessPoint As A Service (APAAS). We connect the Peppol network with the enterprise systems. The interface is based on REST with OAUTh 2.0 layer. The API’s are self explanatory and made visible with the OpenApi UI. The swagger.json file can be downloaded on top of the OpenAPI UI main page and can be used to generate code for several languages. If you choose to generate code, we recommend using OpenAPI Generator. -
22
Amadeus Digital Commerce
Amadeus
Increase your digital sales by offering your customers a smooth booking experience, across different touchpoints and devices. Our user-friendly API offers you the flexibility and functionalities to build best in class front-ends with a fast time-to-market. Adapt quickly to customer demand using the tools, data models, and open technology offered by Amadeus Digital Commerce and the digital developer toolkit, part of the Amadeus Digital Experience suite. Tap into wider UI development resources thanks to open technology. Amadeus’ Digital Commerce API follows the industry-standard OpenAPI specifications (Swagger) model and is based on RESTful technology and the JSON data format. Achieve quick adoption from your developers and reduce UI development costs, with a data model that is easy-to-use and requires no specialist PSS knowledge. Achieve higher conversion rates and increase brand loyalty thanks to the smooth booking process and differentiation capabilities. -
23
Speakeasy
Speakeasy
Speakeasy is a platform that enhances API integration by generating handwritten, type-safe SDKs in over nine programming languages, including TypeScript, Python, Go, Java, and C#. These SDKs improve API integration times by up to 60% by eliminating the need for users to write boilerplate code, reducing common implementation errors, and expanding API accessibility across various programming communities. The platform also simplifies the creation of Terraform providers, allowing for the definition of resources and operations, automatic validation from OpenAPI specifications, and handling complex API landscapes. Additionally, Speakeasy offers end-to-end testing workflows to enforce API standards and protect against breaking changes, as well as SDK documentation that remains up-to-date with compilable usage snippets for every SDK method. Trusted by top API companies, Speakeasy's solutions are designed to provide robust SDKs, Terraform providers, and comprehensive testing tools.Starting Price: $250 per month -
24
Paw
Paw
Paw is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions. Building great software is hard, and developer tools should be helping you without the headaches. Paw is exclusively built for macOS, so you should easily get the hang of it. Every feature is built intuitively with quick mouse or keyboard shortcut access. Visually build your API requests and describe each parameter through textual descriptions, typing, and constraints. Paw natively supports JSON Schema and can import and generate fully compliant Swagger, RAML, and API Blueprint description files. Keep everyone in sync with Paw for Teams. Create a team, invite your team and everyone gets seamlessly the updates.Starting Price: $10 per month -
25
k6
k6
The best developer experience for load testing. Open source load testing tool and SaaS for engineering teams. The k6 API and CLI are easy-to-use, flexible and powerful. Write tests in Javascript that mimic real-world scenarios. Automate your tests to ensure that your infrastructure and application remain performant. Configure SLOs in your k6 script to test the health of your services. Create tests faster with our browser recorder and converters (JMeter, Postman, Swagger). Extensive documentation, awesome community and first class support. No XML. No DSL. Just familiar scripting with ES6 JS.Starting Price: $99.00/month -
26
SuperCore
SuperCore
The next-gen core banking platform for ambitious banks. SuperCore® is our cloud-native core banking platform. It helps banks understand their customers better, release products faster, unlock their data, and deliver connected experiences. As a SaaS-managed service for core banking, SuperCore is available globally via AWS and simplifies your deployment, integration, and infrastructure operations. As a result, banks can massively reduce their cost to serve. Build products in minutes with our no-code product builder. Use our real-time events stream to get fresh customer insights that speed up decision-making. Seamlessly integrate your channels and applications with our API-first architecture. A flexible microservices architecture, modular and configurable, powered by a unified data model. Futureproof your technology with a layer of SmartAdapters in JavaScript with OpenAPI Swagger documentation. With pre-built integrations and modules that get you live faster. -
27
NoCodeBackend
NoCodeBackend
NoCodeBackend is a user-friendly, AI-powered platform that enables the rapid development of production-ready APIs without writing any code. Users can quickly configure databases, tables, and columns through an intuitive interface, with the system automatically generating corresponding API endpoints. NoCodeBackend's AI-assisted prompt technology allows users to describe their desired API functionality, and the system takes care of the rest, streamlining the development process. Additionally, NoCodeBackend offers automated documentation generation using Swagger, ensuring clear and comprehensive API documentation for a seamless developer experience. Starting Price: $49 per month -
28
Mockoon
Mockoon
Mockoon offers tons of features that makes API mocking a breeze. Get Mockoon latest version and start creating mock APIs! Create an unlimited number of mock API with unlimited number of routes and run them in parallel. Use the CLI to run your mock APIs in any headless or automated environment: servers, CI, GitHub Actions, etc. Mock API import / export with Swagger/OpenAPI format support. Serve multiple rules-triggered or random responses with any headers body, or HTTP status codes. Serve your mock API over TLS with self-signed certificate. Add any response headers to your routes and mock API. With auto-completion. Add latency at environment or route level or even both. All incoming requests and outgoing responses are logged for easier debugging. Redirect all non-defined routes to the specified host with Mockoon's proxy mode. File serving with automatic mime type detection and templating support. -
29
Claudia
Claudia
Claudia makes it easy to deploy Node.js projects to AWS Lambda and API Gateway. It automates all the error-prone deployment and configuration tasks and sets everything up the way JavaScript developers expect out of the box. This means that you can get started with Lambda microservices easily, and focus on solving important business problems instead of dealing with AWS deployment workflows. AWS Lambda and API Gateway are incredibly flexible, but they can be tedious to set up, especially for simple scenarios. Running Node.js functions requires you to iron out quite a few quirks, that aren't exactly well documented. Claudia automates all those steps for you. Deploy and update using a single command. Just use standard NPM packages, no need to learn Swagger. Skip all the boilerplate and just focus on your work. Manage multiple versions easily. Get started in minutes, with a very low learning curve. -
30
RAD Studio
Embarcadero
The Ultimate RAD environment loved by developers for quickly building high-performance native cross-platform applications in modern C++ and Delphi using powerful visual design tools and integrated toolchains. Smarter code navigation when refactoring. Auto code completion with Tab key. LSP awareness of Include files. Auto restart of LSP server. Class helper support. Array suggestions when assigning arrays. Inactive code highlighting in Code Editor. High-DPI support in the IDE, with full support for the latest 4k+ monitors, and cleaner and sharper fonts and icons throughout. Improved FMX High-DPI support for Windows and Desktop with a visibly superior desktop UI. Reduces the complexities of rapidly building and deploying a multi-tier turn-key enterprise REST API application server with Swagger support. -
31
Treblle
Treblle
Treblle is a federated API Intelligence platform built for enterprises that need full visibility, control, and security over their APIs. With a single integration, Treblle provides real-time API Discovery, Observability, Analytics, Governance, Runtime Security, and Developer Portals. It supports on-prem and private cloud deployments to meet strict compliance and data privacy requirements. Treblle helps teams shift left by surfacing API issues early in development and ensuring consistency across environments. Its AI-powered Integration Assistant simplifies onboarding and reduces manual effort. Trusted by global enterprises and recognized over 15 times by Gartner, Treblle accelerates innovation while giving you complete control over your API landscape.Starting Price: $25 per month -
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ReadyAPI
SmartBear
The ReadyAPI platform accelerates functional, security, and load testing of RESTful, SOAP, GraphQL and other web services right inside your CI/CD pipeline. ReadyAPI allows teams to create, manage, and execute automated functional, security, and performance tests in one centralized interface - accelerating API quality for Agile and DevOps software teams. Teams can get started by importing API definitions like OAS (Swagger) or WSDLs, testing and recording live API traffic, or virtualizing web services to remove pipeline dependencies. Create comprehensive, data-driven functional API tests without the hassle of maintaining scripts. Generate load, stress, and spike tests to validate whether your API can handle real-world traffic conditions. Secure your vulnerable APIs from XSS, malformed XML, SQL injections and more with each deployment. Remove dependencies in your testing pipeline by virtualizing RESTful, SOAP, TCP, JMS, and other web services.Starting Price: $644 per year -
33
Zuplo
Zuplo
We’re reinventing API & MCP management for everybody, from startups to enterprises. Add authentication, analytics, rate-limiting, and developer documentation to your APIs and MCP servers in minutes. Protect your API by adding rate-limiting with Zuplo in minutes, and add over 50 available plugins like authentication to your API with a single click. Zuplo was built on the edge and deployed to +300 data centers in the world, which makes multi-cloud deployments first-class. With Zuplo you can run different workloads in different clouds while enforcing a unified set of security policies. Zuplo is the only API gateway that runs your OpenAPI spec directly. Leverage the OpenAPI ecosystem to build your API, and then deploy it to Zuplo without additional configuration. Zuplo automatically generates beautiful docs for your API. You can customize the docs with markdown and devs can self-serve API Keys directly from your docs. You can also directly generate hosted MCP servers from your OpenAPI.Starting Price: $0 per month -
34
FUNCTION12
FUNCTION12
Get code just copy and paste Design-to-code automation solution that converts Figma designs into front-end view code FUNCTION12 offers three products: DevMode, DevMode Plus, and CodeGen. The features include DevMode ✅Lifetime Free ✅Pixel-perfect design, aIl inspectors DevMode Plus ✅Re-analyzes and Auto-adjusts Designs ✅Automatically Configures Vectors, Images, and SVGs CodeGen ✅Holistic Design, Scene, and Object Relationship Analysis ✅Component Analysis and Automatic Conversion ✅Comprehensive Code Generation for Projects ✅Support for Multiple Frameworks and Code Styles ✅Class Name Auto-completion and Styling -
35
Refraction
Refraction
Refraction is a code-generation tool for developers. It uses AI to generate code for you. You can use it to generate unit tests, documentation, refactor code, and more. Generate code using AI in 34 languages — 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. Join thousands of developers around the world using Refraction to generate documentation, create unit tests, refactor code, and more using AI. Use the power of AI to automate the tedious parts of software development like testing, documentation, and refactoring, so you can focus on what matters. Refactor, optimize, fix and style-check your code. Generate unit tests for your code with various test frameworks. Explain the purpose of your code to make it easier to understand.Starting Price: $8 per month -
36
Redocly
Redocly
Beautiful API documentation loved by teams and API consumers. At last, API documentation your whole team will be proud of. Publish beautiful API reference docs in seconds and style them in minutes. Tick every developer's favorite box right out of the box, three panels, a try-it console, generated code samples, SEO-friendly, even friendlier search. Nobody likes outdated docs and scope creep. Maintain API documentation with your favorite source control integrated with our cloud app workflows. We support them all, including on-premise and API management providers. Launch a developer portal in minutes reusing your API definitions as assets. Add tutorials, quick-start guides, and developer tooling with incredible customization. Validate, lint, and bundle multi-file API definitions. Write always on-spec OpenAPI documents. Plug in your API reference and customize every nook & cranny to wow your API consumers.Starting Price: $69 per month -
37
Imperva API Security
Imperva
Imperva API Security protects your APIs with an automated positive security model, detecting vulnerabilities in your applications, and shielding them from exploitation. Organizations manage a minimum of 300 APIs on average. Imperva’s API Security amplifies your security posture by automatically generating a positive security model for every uploaded API swagger file. APIs are being churned out faster than security teams can review, influence, and sign off on before they’re pushed into production. Imperva’s API Security enables your teams to stay ahead of DevOps via automation. Imperva API Security empowers your approach with out-of-the-box security rules adjusted to your APIs. This ensures complete OWASP API coverage and promotes visibility for all security events per API endpoint. With API Security, simply upload the OpenAPI specification file that your DevOps team has created and Imperva will automatically build a positive security model. -
38
Go SaaS Startup Kit
Go SaaS Startup Kit
The SaaS Startup Kit is an open-source project offering a collection of Go (Golang) libraries and boilerplate code to facilitate the development of scalable software-as-a-service applications. It provides a responsive web application with user authentication, including sign-up and login functionalities, and supports create, read, update, and delete (CRUD) operations. The kit includes a RESTful API with JSON Web Token (JWT) authentication and auto-generated documentation using Swagger. For user interface design, it integrates Bootstrap, enabling the creation of responsive, mobile-first projects. Deployment is streamlined through serverless infrastructure on Amazon Web Services (AWS), with continuous integration and deployment pipelines configured via GitLab CI/CD. By offering these pre-built components and integrations, the SaaS Startup Kit aims to reduce repetitive tasks, allowing developers to focus on unique business logic and accelerate the launch of new software services.Starting Price: Free -
39
IBM z/OS Connect
IBM
IBM® z/OS Connect Enterprise Edition provides a simple and intuitive way to bring the power of APIs to your mainframe. Unlock the value of your IBM Z® subsystems with truly RESTful APIs and create consumable APIs in minutes to make Z applications and data centers to your hybrid cloud strategy. Call APIs from Z applications to enhance them with the power of cloud-native functions. Remove dependencies on platform-level skills and create Swagger-defined APIs in minutes. Get enterprise-grade APIs to handle the requests required by business-critical services. A single, consistent, approach to monitoring and auditing all IBM Z APIs across the platform. Enhance z/OS® applications with the power of cloud native functions, plus easily call APIs using native interfaces from COBOL and PLI programs. Drive agility across your development teams with parallel development for APIs and Services using source code management systems such as Git or RTC/Jazz. -
40
AssureAPI
Opcito
Introducing AssureAPI, a powerful automation tool to make testing your RESTful APIs a breeze. The Zero Code tool takes advantage of OpenAPI/Swagger specifications to effectively interpret your API’s structure and operations. It automatically generates and runs a wide range of test cases, both positive and negative, against your API endpoints. With AssureAPI, you can ensure your APIs are reliable, secure, and performing at their best. Say goodbye to long testing cycles, test case coding, and frequent updates; this tool helps you speed up your time to market while equipping your business with robust, high-performing APIs. Automate repetitive tasks and let AssureAPI do the heavy lifting while you focus on strategic development. No code minimizes the risk of manual execution mistakes with consistent, automated testing. Cover everything from basic functionality to complex edge cases, and ensure your APIs are robust and reliable. -
41
Beeceptor
Beeceptor
Beeceptor is a high-performance, no-code platform that eliminates development bottlenecks through instant API mocking and real-time traffic inspection. Don't wait for backend teams to deploy; spin up a named subdomain in seconds and start integrating immediately. Key Capabilities: - Multi-Protocol Support: Simulate REST, SOAP, GraphQL, and gRPC endpoints without writing server-side code. - AI-Powered Mocking: Use AI to generate realistic, contextually relevant test data or import OpenAPI/Swagger for CRUD-ready mocks. - Chaos Engineering: Test "unhappy paths" by simulating latencies, timeouts, and rate limits. - Local Tunneling & Proxying: Expose localhost via HTTPS and inspect live webhooks or mobile traffic in real-time. Decouple your frontend and mobile teams, stabilize CI/CD by removing third-party dependencies, and go from API design to functional mock in minutes. Beeceptor scales from solo devs to enterprise-grade integration testing.Starting Price: $10 per month -
42
Apitive Studio
Apitive
Design, Document, Mock and Publish your APIs in OpenAPI 3.0 specification. A sleek UI that allows its users to design REST APIs intuitively. Product managers can now be less or notdependent on engineering teams to create API designs; thus increasing time to market. Workbench includes a refined review tool that allows users to submit their API designs for peer reviews. Achieve enterprise wide interface design standardization with Apitive Studio by creating reusable data models and global policies. Share them across various products and provide uniformity in your API Designs and Implementations. API designs are only as good as its document. Auto generate complete API documentation as web pages that provides both technical and business documentation to its consumers. Apitive Studio also deploys the documentation as a portal at pre-defined location for consumption saving time and effort. Socialize your APIs with external consumers and get instant validation. -
43
figshare
figshare
We accept any file format and aim to preview all of them in the browser. Academics are busy enough. figshare features aim to help you organize your research and get as much impact for it as possible, without adding time or effort to your day. The Figshare API allows you to programmatically move content to and from Figshare. Documentation is available using Open API Swagger. For examples on what you can do with the API, check out this article on how to use our API. If you are uploading large files or many files, the FTP uploader might be a better option than the broswer. This method allows you to easily and securely upload files in your account directly from your computer by using a secure FTP connection. figshare enables you to host large amounts of data in your online articles with no impact on your infrastructure. -
44
API Tester
API Tester
API Tester is a completely free mobile app available on iOS, Android, macOS, and watchOS. It is a functional API testing tool that allows users to complete compound tasks on any device. - Test any API on the go: REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS. - GET, POST, PUT, PATCH, DELETE, etc. HTTP request methods are supported. - Perform the API calls with any kind of request data encoding and transfer type. - Import collections from Swagger, Postman, and YAML, or import requests using cURL, as well as export created requests via link or cURL. - Use a powerful GraphQL editor with full-scale experience. - WebSocket testing tool is available: handles connection and message exchange via WS or WSS. The API Tester mobile app allows you to get the job away from your workstation. Save time, work from anywhere!Starting Price: Completely free -
45
RapiDoc
RapiDoc
Free of any frameworks, setups, configs, build steps, or packaging. Can be used with any framework or just with vanilla Javascript. Style it to your heart's content. Change font, logo, colors, and theme. Inject external HTML or embed it into another HTML document. Create beautiful, customizable, interactive API documentation from OpenAPI specification. Use It just like any other HTML tag, Change its attribute using JavaScript and see it react to those changes. Basic knowledge of HTML is all that's required. Minimal dependencies, no runtime, and no virtual DOM ensure the lowest memory consumption, Just the native and raw speed of modern browsers. Loved by tech writers, designers, dev-ops, testers, and developers alike, due to its simplicity, interoperability, and powerful features. No special build-steps, runtime, or framework are required. Comes with built-in console to Try out the APIs. Supports authentication mechanism. No validation ensures you can test negative cases.Starting Price: Free -
46
CodeNOW
Stratox Cloud Native
CodeNOW is the DevOps platform for businesses that want the same excellence in software delivery as digital leaders without the large IT investments and the distraction from their core business. CodeNOW is listed by Gartner as a DevOps Value Stream Delivery Platform (DevOps VSDP), which Gartner sees entering the mainstream in 2023. CodeNOW is a cloud-native, cloud-agnostic DevOps VSDP that helps companies deliver natively scalable, highly available, resilient digital services that run safely on multiple clouds. CodeNOW integrates into a single cohesive product over 40 battle-tested open-source multi-point solutions (Gitlab, Swagger, Karate, SonarQube, Nexus, Tekton, ArgoCD, Kubernetes, Docker, Helm, Istio, Jenkins, Ansible, Terraform, and more) and covers the full software delivery life cycle. CodeNOW customers experience no vendor lock-in nor maintenance costs (PaaS model). They do more with the team they already have vs. recruiting of extra expensive, hard-to-find DevOps engineersStarting Price: €9 per month -
47
POEditor
CODE WHALE
POEditor.com is a collaborative translation platform and localization management system. Trusted by companies like Bosch, Unicef, Ikea and Adidas, POEditor brings transparency to the localization process and boosts productivity for product, design and localization teams alike, helping avoid possible localization bugs. Compared to other translation and localization management software, POEditor has a friendlier UI and better pricing, based on actual usage. Key features: Multiple translation options, Automated Quality Assurance, Tags, comments, screenshots, teams, Integrations with Git hosting services, Multiple ways to recover strings, Slack and Microsoft Teams integrations, REST API and Swagger specs, Figma plug-in, glossary, Workflows Supported localization file formats: Flutter ARB CSV INI Key-Value JSON JSON Gettext PO and POT Java Properties .NET Resources (.resw, .resx) Qt TS iOS Strings iOS XLIFF (.xliff) XLIFF 1.2 (.xlf) Angular XLIFFStarting Price: $0/month -
48
ibi iWay Service Manager
Cloud Software Group
iWay Service Manager (iSM) is an integration platform that ensures rapid access to timely, accurate data across all systems, processes, and stakeholders, providing unmatched interoperability between disparate systems and data. It enables the creation of powerful, reusable business services from existing applications, facilitating seamless integration of applications in a secure, scalable environment. iSM supports a wide range of connectors, allowing the integration of various services, including real-time, batch, streaming, structured and unstructured information, cloud-based sources, blockchain applications, big data, social networks, and machine-generated data. Its advanced transformation services enable workflows to consume and send messages in formats such as JSON, XML, SWIFT, EDI, and HL7. The platform offers RESTful API support for RAML, Swagger, and Open API, facilitating rapid access to vital callable services. -
49
FauxPilot
FauxPilot
FauxPilot is an open source, self-hosted alternative to GitHub Copilot. It utilizes the SalesForce CodeGen models on NVIDIA's Triton Inference Server with the FasterTransformer backend for local code generation. It requires Docker, an NVIDIA GPU with sufficient VRAM, and the ability to split the model across multiple GPUs if needed. The setup involves downloading models from Hugging Face and converting them for FasterTransformer compatibility.Starting Price: Free -
50
liblab
liblab
Reduce your customers' API integration time by offering SDKs in languages they are familiar with. Our SDK Code Generator creates language-specific SDKs in under a minute and integrates into your CI/CD pipeline for no-touch maintenance with every API update. Generate SDKs in multiple languages with built-in best practices in less than a minute. Integrate them into your CI/CD pipeline to keep SDKs and documentation synchronized with every API update, with no additional engineering effort required. Autogenerate SDKs in Python, Java, Typescript, C#, Go, and PHP with language best practices built in. Easily integrate SDK deployments into your CI/CD pipeline without extra work. liblab automates the process for PyPI, Maven, NuGet, Go, Packagist, and npm.Starting Price: $120/month
