APITect is your AI-driven, contract-first alternative to Insomnia
Insomnia is a fast, developer-friendly API client — great for sending requests and debugging manually. But it stops there. No contract-first workflow. No dynamic mocks. Minimal collaboration. APITect replaces all that with a fully automated, AI-powered API development platform.
AI Contract Generation
Convert raw JSON into complete, AI-generated OpenAPI schemas instantly.
Dynamic Mocks
Generate evolving, rule-based mocks tied directly to the contract.
Real-time Validation
Validate every request/response automatically.
Team Collaboration
Contract versioning, history, RBAC, and shared teams out of the box.
It's FREE. No credit card required.
Key Differences
Insomnia
Insomnia shines as a developer's API client — fast, minimal, and great for manual requests. But the moment you need contract accuracy, schema evolution, team collaboration, mocks, or any form of automation, the limitations become obvious.
APITect
APITect is built specifically to fill that gap with AI-first, contract-driven workflows that Insomnia cannot support. Contract-first, automation-driven, and built around AI-powered schema + mock generation.
| Capability | APITect | Insomnia |
|---|---|---|
| AI-driven contract schema generation | ✔ Built-in | ✘ No native support |
| Dynamic, rule-based responses | ✔ Real-time | ✘ No dynamic mocking |
| Real-time contract validation | ✔ Automated | ✘ Zero live validation |
| Contract-first workflow | ✔ First-class feature | ✘ Not contract-driven |
| API schema editing | ✔ Integrated | ! Basic spec support |
| Team collaboration & RBAC | ✔ Full featured | ! Limited & manual |
| Automated documentation | ✔ Auto-generated | ✘ Manual only |
| OpenAPI / Swagger compatibility | ✔ Full | ✔ Basic |
| Manual API testing | ✔ Supported | ✔ Excellent |
| GraphQL support | ✔ Yes | ✔ Excellent |
| Versioning & history | ✔ Contract-based | ! Basic |
Insomnia tests APIs. APITect designs, validates, and evolves them.
Who Each Tool Is Best For
Let's be clear: these tools solve different problems entirely.
APITect is built for:
- Teams building, evolving, and validating APIs
- Contract-first workflows
- QA teams needing reliable environments
- Fast-moving API teams demanding automation
- Companies that need consistency across services
Insomnia is built for:
- Individual developers
- Manual testing & debugging
- Sending REST/GraphQL requests
- Lightweight, local workflows
- Teams who don't rely on contracts, mocks, or validation
Insomnia is amazing for what it is. But it was never designed to run a modern, contract-driven API workflow. APITect was.
Move From Insomnia's Manual Testing to APITect's Automated Contract Workflow
Insomnia is great for quick requests. APITect is great for building APIs with speed and accuracy.
- Convert your JSON examples into formal, AI-generated schemas
- Auto-generate dynamic, conditional mocks
- Validate every API response in real-time
- Organize endpoints with versioning, history, RBAC
- Replace manual testing with contract-backed workflows
Final Recommendation
If your workflow is manual testing, Insomnia is one of the best tools out there.
But if your workflow demands:
- Contracts
- Schema Evolution
- Dynamic Mocks
- Automated Validation
- Documentation
- Team Collaboration
- Versioning
- Role-based Permissions
Insomnia simply wasn't built for that.
Insomnia helps you test APIs. APITect helps you build them.
And once a team moves to contract-first development, they don't go back to manual clients for core API work.
AI-Powered,
Design-First
API Platform
Ship APIs 3x faster with AI-powered contracts, instant mocks, and live validation.