Postman

Postman remains the default choice for API development in 2026 because the ecosystem built around it is hard to replace. New developers joining a team already know it, documentation is extensive, and the core API testing experience is genuinely good. For solo developers, the free plan covers everything needed for day-to-day API work.

The March 2026 pricing change is the main friction point. Removing team collaboration from the free tier pushed small teams directly to $19 per user per month, which adds up quickly. A five-person team now pays over $1,100 per year just for the Team plan before adding any enterprise features. For teams where budget is tight, alternatives like Apidog offer free collaboration for up to four users. But for organizations where standardization on a single tool matters, Postman’s depth and universal adoption still justify the cost.

Postman is an API platform used by over 30 million developers and 98 percent of Fortune 500 companies to design, test, document, and monitor APIs. It started as a simple Chrome extension in 2012 and has grown into a full API lifecycle management platform. The core product lets you send API requests, inspect responses, and organize everything into collections that your team can share and reuse.

The platform supports REST, GraphQL, SOAP, and WebSocket requests, and includes tools for writing automated test scripts that run after each API call. These tests can be integrated into CI/CD pipelines through integrations with GitHub Actions, Jenkins, and similar tools, so your API tests run automatically whenever code changes. Environment variables let you switch between development, staging, and production configs without rewriting requests.

In 2026, Postman restructured its pricing significantly. The free plan is now limited to one user after removing team collaboration from the free tier in March 2026. Solo developers can stay on the free plan indefinitely, but any team collaboration requires the Team plan at $19 per user per month. API access and AI-powered features like test generation and documentation assistance are available on paid plans, with AI credit allocations that vary by tier.