In this Drop, we’re sharing solutions to streamline your development workflows, including:
- Support for external public packages means no wasting time or risking errors by copy/pasting JavaScript libraries
- Custom validation rules eliminate alignment issues caused by one-size-fits-all API governance
- Enhanced Slack integration cuts out disruptive tool-switching when tracking API changes and requesting access to resources
- MCP support standardizes integration, simplifying the process of integrating tools and building functional agents
- Cloud-deployed AI workflows remove bottlenecks caused by manual processes
Plus, we’ve got some core experience improvements to make using Postman more intuitive and efficient.
Unlock the JavaScript ecosystem with external public packages
Scripting is essential for testing and automating API workflows in Postman, but developers often struggle to use the broader JavaScript ecosystem. This leads to workarounds like copying and pasting external libraries into scripts, using eval() hacks, or re-creating common utilities from scratch. These approaches create messy, hard-to-maintain code that breaks as your API evolves and wastes time on problems others have already solved.
Postman now supports external npm and JSR packages, bringing the JavaScript ecosystem directly into your workflow without leaving Postman. Use these packages in your pre-request, post-response, and other scripting workflows across all request types—including HTTP, gRPC, and GraphQL:
- Directly import public npm and JSR libraries for encryption, formatting, data parsing, and more
- Access thousands of trusted packages without clunky
eval()workarounds - Simplify complex logic with industry-standard libraries instead of writing from scratch
No more copying code, writing complex workarounds, or switching between tools—just import the libraries you need and focus on building workflows that deliver real value, all within Postman.
Learn more about importing external packages in Postman →
Now that copy/paste will be getting a lot less use—what’s your most-used keyboard shortcut?
Tailor validation rules with Spec Hub custom governance
Last month’s Spec Hub launch highlighted the value of having a central repository for your API specifications. However, one-size-fits-all governance rules can’t address every organization’s unique requirements. When different teams contribute to your API ecosystem and rules only flag generic issues, it’s challenging to keep everyone aligned.
We’re taking Spec Hub to the next level with custom Spectral rule support, bringing advanced validation capabilities right where your specifications live:
- Create and enforce custom validation rules that reflect your organization’s standards
- Catch inconsistencies automatically using rules tailored to your specific requirements
- Maintain governance guardrails that help every team follow your organization’s best practices
With Spec Hub, you can enforce consistent API standards with built-in Spectral rules, in-house linting, and now full support for custom rules and functions. We’re eliminating governance bottlenecks—helping you organize your specifications while ensuring they match your unique quality consistency standards. Spec Hub is available to try on every Postman edition, but the ability to define custom rules for your team is currently only available on the Enterprise plan.
Learn more about configuring API governance rules in Postman →
Keep teams aligned with enhanced Slack integration
We hear you—it’s hard to keep up with changes as they happen in Postman, whether they’re in your internal workspace or from an external API publisher. Tracking API changes and requesting access to resources often requires switching between multiple tools, which can interrupt your workflow and potentially cause you to miss important updates.
We’ve expanded our Slack integration to keep you connected without disrupting your workflow:
- Get Slack notifications for public workspace updates to track changes from both internal teams and external API publishers
- Request access directly in a Slack message when you encounter Postman resources you don’t have permission to view or edit
- View rich changelog details in notifications with clear information and direct links to deeper inspection in Postman
These enhancements bridge the gap between where your team communicates and where your APIs live—removing collaboration roadblocks and ensuring that no one misses critical updates.
Install the Postman app for Slack →
How many browser tabs do you have open right now? Tell us in the comments and we’ll tell you if your tab count is above average.
Standardize AI connections via MCP support
If you’ve tried building AI agents, you know the pain points: complex integration setup, vendor lock-in with specific models, and custom code that becomes harder to maintain over time. Not only do these slow you down, but they also limit what your agents can actually do.
Model Context Protocol (MCP) changes this by standardizing how AI applications connect to tools. And now, Postman brings MCP support directly into the workflow you already know:
- Generate complete MCP servers using AI Tool Builder by choosing from our network of thousands of APIs
- Discover MCP servers built upon our established network of well-documented APIs for reliable agents
- Inspect and test individual tools within MCP servers to see exactly how they behave before integrating them into your workflows—all through the familiar Postman interface
With Postman’s MCP support, you can create model-agnostic connections that work across Claude, Cursor, and other MCP-compatible platforms, breaking down AI compatibility barriers and giving you the freedom to choose the best models for your needs.
Learn more about creating MCP requests or MCP servers in Postman →
Deploy and automate workflows with Flows Actions
Running workflows manually creates unnecessary bottlenecks in your development process. You waste time triggering executions by hand, risk missing scheduled runs, and get pulled away from higher-value work to babysit routine processes.
Flows Actions transforms any workflow into automated, cloud-deployed processes:
- Deploy workflows to Postman’s cloud with one-click automation from the Flows canvas
- Trigger executions via API endpoints from any application on any schedule
- Scale automatically to handle varying workloads without provisioning or managing servers
Build your workflow, click deploy, and you’ll get an API endpoint you can call from anywhere. No more babysitting executions or worrying about infrastructure—your flows run when you need them, clearing the path to production with all the heavy lifting handled for you.
Learn more about deploying flows as actions →
Work smarter with core experience enhancements
Searching through extensive API documentation, manually writing tests, and struggling with inefficient search functionality slow down the development process.
We’ve been busy making Postman more intuitive and efficient with enhancements that help you stay in the flow:
- Autocomplete in New Request tab suggests relevant APIs as you type—complete with methods, params, auth, and body structures from both public and internal APIs
- Enhanced Postbot for testing provides intelligent code completions, generates tests from comments, and creates tests directly from response fields
- Smarter search capabilities and API response filtering make it easier than ever to find what you need and focus on the data that matters
These small-but-mighty improvements deliver a significantly more fluid experience, helping you accomplish more in less time.
Tools that work with you, not against you
That wraps up this month’s Drop, all designed with one goal in mind: letting you focus on building better APIs instead of fighting with your tools. Whether you’re importing npm packages to avoid repetitive work, using Spec Hub to maintain consistent standards, or deploying flows to the cloud with a single click—each feature is built to eliminate friction from your workflow.
As always, these updates are shaped by your feedback. Have thoughts on what we’ve shipped or what should come next? Drop a comment below—our product team is listening.
While you’re here, we want to remind you that POST/CON 25, our annual user conference, is just two weeks away! Join us June 3 & 4 in Los Angeles to share ideas, learn from experts, and get hands-on with the latest Postman features. Register today!
Keep it 200,
The Postman Team