Postman
API design, testing, and documentation platform used across most engineering orgs.
Proprietary apitesting
Pricing
Free tier, paid from $14/user/month.
Postman has become the default for designing, testing, and documenting APIs — the free tier alone covers most small-team needs before paid collaboration features become worth it.
Key features
- Mock servers and auto-generated docs from collections
- Shared team workspaces and collection versioning
- Contract testing against OpenAPI specs
- Huge existing library of public API collections
Self-hosted vs. cloud
SaaS, with a resource-heavy desktop client as the primary interface. No self-hosted option for most collaboration features.
Quick start
# No CLI setup — download the desktop app or use the web client at postman.com
Alternatives
Kong Gateway solves a different, adjacent problem — API traffic management in production rather than design/testing.