Version AI

Version AI

(4.4)
Freemium
Web
Best for: AI builds full REST API documentation, mock servers, and test endpoints
Version AI preview
275 upvotes
381 bookmarks
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Our Verdict

Version AI is an excellent solution for automating API documentation, mock server creation, and versioning. It streamlines the development process and enhances collaboration, making it a valuable asset for development teams.

About Version AI

Version AI is an AI-driven API documentation and mock server platform designed to streamline the development process for developers and product teams. By simply pasting your API schema (OpenAPI, Swagger, or Postman), Version AI automatically generates interactive documentation, complete with usage examples, authentication flows, and test endpoints. It also supports real-time mock servers and API versioning, making it easy for teams to preview, test, and iterate before pushing live. Version AI is built for startups, API-first companies, and developer advocates, taking the pain out of onboarding and speeding up feedback loops between backend and frontend teams. This allows for faster development and deployment cycles.

Review Summary

Performance Score
A
Content/Output
Developer-Ready, Clean, Usable
Interface
Dev-Focused, Lightweight, Accessible
AI Technology
Schema Inference
AI Technology
NLP for Description Auto-fill
AI Technology
Mock Gen AI
Purpose of Tool
Automate API docs, mock servers, and versioning for faster dev
Compatibility
Web-Based, Git-Integrated, Postman & Swagger support
Pricing
Free plan + Paid tiers from $15/month
Rating
4.4/5
Accessibility 4.4
Compatibility 4.4
User Friendliness 4.5

Who Is This Tool Best For?

  • Backend Engineers: Use Version AI to speed up API documentation and avoid writing boilerplate for endpoints and models.
  • Product Teams and Tech Leads: Rely on Version AI to keep API specs up-to-date across versions and stakeholders.
  • DevOps and QA Testers: Use mock server generation to simulate environments before deployment.
  • SaaS Startups: Use it to present APIs to clients and partners with polished, no-code-ready documentation.

Key Features

AI-Generated API Documentation
Paste OpenAPI or Swagger Specs
Instant Mock Server Creation
Version Control for APIs
Shareable API Docs with Custom Branding
Test Endpoints in Real-Time
AI-Powered Auto Descriptions
Git Integration & Import Tools

Pricing Plans

Free Plan

Free
  • 1 Project
  • 3 API versions
  • Public doc sharing
  • Basic mock server
  • Limited usage

Starter Plan

$15/month
  • 5 Projects
  • 10 API versions
  • Advanced mock servers
  • Team collaboration
  • Git sync & private docs

Team Plan

$49/month
  • Unlimited projects
  • Unlimited API versions
  • Branded documentation
  • Role-based access
  • Priority support

Pros & Cons

Pros

  • Saves hours writing and formatting API docs manually
  • Generates testable mock servers instantly
  • Clean UI with Git and Postman integrations
  • Ideal for client-facing API presentations
  • AI auto-fills descriptions and usage guides

Cons

  • Limited customization in free tier
  • No native mobile support
  • Best suited for RESTGraphQL support limited

Frequently Asked Questions

Yes, you can import from Postman, Swagger, or OpenAPI specs and Version AI will auto-generate documentation.
Yes, Version AI allows you to manage and document multiple versions of your API within the same project.
Yes, paid plans include team access, project sharing, and Git integration for collaborative API workflows.

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