Postman Product Update: December 2025

For more guidance on collaborating in Postman, explore Postman Best Practices for collaboration.

Test automation that streamlines secure testing

Testing private APIs means fighting with firewalls and VPNs. External monitors can’t reliably reach internal endpoints, scheduled monitors often catch issues too late, and without validation gates at release time, regressions can slip through to production. This year, we shipped features that make it easier to test APIs in real-world conditions without exposing infrastructure or managing complex workarounds.

• On-demand monitors turn your existing health checks into release gates, so you can trigger monitors at deploy time and catch issues before users do.

• Postman CLI with npm makes setup quick and familiar so teams can automate tests directly in CI/CD and roll out updates consistently across environments.

• Private API runners execute tests securely inside your VPC, letting you validate APIs in real-world conditions without VPN workarounds or exposing infrastructure.

Learn more about leveraging test automation by exploring the Postman Best Practices for Test Automation.

API design and governance that scale with your systems

As teams build more APIs, complexity multiplies—and so does the cost of catching design flaws late in the development cycle. This year, we focused on features that bring clarity, consistency, and control to the earliest stages of API development so teams can move quickly without sacrificing quality. Whether you build code-first or spec-first, these capabilities help you create consistent, well-structured APIs from the start.

• Spec Hub multi-file spec support breaks large OpenAPI files into modular components with cross-file references and intelligent autocomplete, preventing merge conflicts and making complex APIs easier to manage.

• Bidirectional sync in Spec Hub keeps specs and collections aligned automatically. Update a collection and push changes back to the spec, or update collections when the spec changes.

• Governance reports surface design and compliance issues early, helping you enforce standards across teams before problems reach production.

• Collection types let you define request and response structures, whether you start with a formal spec or build directly in collections. View property details, get notified about required fields, and receive validation feedback before sending requests.

AI features that support AI-ready APIs

AI agents fail when they encounter slow APIs, inconsistent error messages, or incomplete documentation. Unlike developers, agents can’t adapt to poor interfaces. Even if you’re not building with AI directly, agents are already hitting your APIs through monitoring platforms, CI/CD pipelines, and third-party services that have quietly added AI features. This year, we shipped features that help you build AI-ready APIs and integrate AI into your workflow.

• AI Agent Builder is a comprehensive suite that lets you evaluate LLMs and APIs, build agents with visual workflows in Flows, test agentic solutions locally, and discover APIs from the Postman API Network. Start with pre-configured templates for DevOps, support, and sales workflows, or use the Tool Generation API to build on your own platform.

• MCP support enables you to generate model-agnostic servers that work across Claude, Cursor, and other MCP-compatible tools, providing AI models with context from your trusted data sources and internal APIs.

• MCP catalog provides a curated list of official MCP servers to use within Postman.

• Flow Actions enable you to deploy workflows to the cloud with a single click and trigger them via API endpoints without managing the infrastructure. Actions are useful for running automations and exposing functionality as an API or as an AI tool for MCP servers.

• Agent Mode unlocks a new way to build with your APIs by speeding up debugging, generating high-quality requests and tests, and even creating apps you can publish to the Public API Network. It works inside the workflows you’re already using, helping teams move from idea to working API much faster. (Available now, with Enterprise access coming soon)

Check out our Agent Mode playlist to start experimenting. Hint: To get a head start on the Agent Mode Community contest, pay attention to use cases like debugging or adding apps to the Public API network that could improve your team’s workflows.

Additional updates

We hear your feedback. You’ve told us about the friction points that slow you down: managing different script types across protocols, losing track of workspaces, switching from terminal to browser just to test an endpoint, struggling to find internal APIs, and jumping between tools for routine tasks. Since our last update, we’ve shipped features you’ve been asking for that solve real workflow problems.

• Multi-script support for multi-protocol collections lets you write scripts once and reuse them when running GraphQL or gRPC requests without maintaining separate versions.

• Workspace bookmarks let you pin your most-used workspaces for quick access.

• CLI command postman request sends HTTP requests directly from your terminal, eliminating context switches for quick tests.

• Postman power for Kiro IDE brings context about your APIs into Kiro so your AI agents can automatically create and update workspaces and collections, run collections, and more.

• Early access integrations with Aikido, ReadMe, Pynt, and Stainless help you bring API security insights, reference docs, and SDKs directly into Postman collections. Sign up for beta access to try them out.