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Serious Codegen Power for API-First Development & Documentation

Leverage the full power of Swagger-OpenAPI in your code & continuous integration build. API-first just got real

RepreZen API Studio is your complete IDE for API design, docs, development, & DevOps automation.

RepreZen takes codegen to the next level. Watch the video:

RepreZen API Studio FREE TRIAL

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POWERFUL, EXTENSIBLE CODE GEN

Full Swagger-Codegen support.
Over 70 code generation templates.

  • Generate service implementation scaffolding & client SDKs for your choice of programming languages & frameworks.
  • Create beautiful, customizable API docs with interactive HTML, diagram & pdf print formats. 
  • Customize each codegen target with a simple, pre-configured YAML settings file.
  • Generate from the command line, from your CI/CD environment, or from the IDE. Maven & Gradle builds are ready-to-run.
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SIMON MORRIS
SENIOR PLANT PROCESS ENGINEER

“I created a simple 'hello world' API in under 5 minutes with no instruction. I targeted 4 or 5 platforms and had implementation code within seconds. And all of this without ever having seen Swagger before!"

Customers

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RepreZen customers are crushing it with API-first. Ready to take API design, docs & development to the next level?

Start a Free Trial Today!
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THE CONTRACT IS THE CODE

 

RepreZen API Studio brings API design and code generation right into the IDE, enabling true contract-first development.

  • Continuous Codegen with Maven and Gradle build automation means your API spec is a first-class part of your codebase.
  • A Virtual OpenAPI Compiler. That's how we might describe contract-as-code in practice.
    • A Swagger-OpenAPI or RAPID-ML spec is a high-level, declarative model of your API.
    • Codegen compiles it to your target language.
  • Start Faster, write less code. Using an agile, model-driven approach not only spares you the pain of setting up boilerplate code; it lets you build & evolve your API design with maximum efficiency.
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CONSOLIDATE & SIMPLIFY WITH SWAGGER-NORMALIZER

Swagger-Normalizer combines multi-file projects into a single Swagger spec to simplify downstream codegen and documentation UI. Works automatically as a codegen pre-processessor, or use it to generate a self-contained Swagger spec in JSON & YAML formats. 

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ODA SHINSUKE
MICROSOFT SQL SERVER MVP

"I didn't think I needed an API design tool; I was already generating Swagger 'code-first' from my JAX-RS service. But when I saw how much time I could save with RepreZen's API-first workflow, I decided to give it a try.

Wow! *This* is the tool I want to use when I'm developing APIs!"

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CUSTOM CODE GENERATION

Targeting a specialized programming language, microservices framework or coding standard?
RepreZen is the only choice for extensible & enterprise-ready code gen.

  • Write custom Swagger-Codegen templates, or use RepreZen's powerful, template-driven framework.
  • Start building and testing your generator in less than 2 minutes with the New GenTemplate wizard!
  • Edit & debug generator templates in RepreZen's Eclipse-based IDE, distribute to team members with drag-and-drop integration.
  • Chain generators together to deliver advanced end-to-end API solutions.
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FAST, INTUITIVE EDITING
EVEN WITH LARGE & COMPLEX PROJECTS

RepreZen's best‑in‑class editors put API modeling power and design guidance at your fingertips:

  • Stay on the fast track with code assist, customizable templates & real-time validation.
  • Add cross‑file references in a snap, and navigate at thought-speed with cutting‑edge multi‑file support. Even share across projects & teams!
  • Live documentation, diagram, Swagger‑UI, and sandbox testing with the built‑in mock service.
  • Model APIs in industry-standard OpenAPI, or in RAPID-ML, RepreZen's domain-driven API modeling language.
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SWATHI PRASAD
SOFTWARE DEVELOPER
THOMSON REUTERS

"RepreZen API Studio offers everything a developer needs to design & build modern REST APIs. The real-time diagram visualization makes the design clear.
Great API development tool!"