Insomnia

API design and testing platform with AI assistance

Free tier Open Source Active Freemium
Category
AI API Tools
Platforms
desktop, web
Pricing
$0 — $22/mo/user
Open Source
Yes
IDE Support
Desktop app, Web

# What is Insomnia?

Insomnia is an open-source API design, testing, and collaboration platform. Its AI features include generating mock data, writing test assertions, and explaining API responses. It supports REST, GraphQL, gRPC, and WebSocket protocols.

Who is it for? API developers and teams who want AI assistance designing, testing, or documenting APIs.

Key Features

api-testingapi-designopen-sourcegraphqlgrpc

Available on

Desktop appWeb desktopweb

* Our Verdict

4.1 /5

Solid API platform with practical AI features for test generation. Owned by Kong so enterprise backing is solid.

+- Pros & Cons

Pros

  • + Good protocol coverage
  • + AI test generation is useful
  • + Open source core
  • + Clean interface
  • + Kong enterprise backing

Cons

  • - Cloud sync requires paid plan
  • - AI features basic vs newer tools
  • - Controversy around licensing changes
  • - Some users prefer Bruno for simplicity

$ Pricing

Free
$0
  • Local storage
  • All protocols
  • Basic AI
Team
$22/mo/user
  • Shared workspaces
  • Git sync
  • SSO

</> Supported Languages & IDEs

Languages

RESTGraphQLgRPCWebSocket

IDEs & Platforms

Desktop appWeb

= Alternatives to Insomnia

i About Kong

Company Kong
Founded 2015
HQ San Francisco, CA
Repository github.com/Kong/insomnia — 34.0k stars
Status Active
Data updated 2025-02-15