The Collaboration Platform for API Development

Our open source modules power core features of the Postman app, which is used by over 14 million users across 500,000+ companies.


Command-line tool for running and testing a Postman Collection as part of any pipeline, making Postman collections a unit of compute that can be baked into the software development life cycle, and leveraged as API truth wherever it is needed.

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OpenAPI Initiative

The OpenAPI Specification (OAS) is a community-driven open specification within the OpenAPI Initiative, a Linux Foundation Collaborative Project. OAS empowers the API community with a common, machine-readable way of defining the surface area of any API that uses the HTTP 1.1 protocol as a transport. Postman has joined the OpenAPI initiative and continues to invest in open source tooling built around it.

Learn more | Source code

AsyncAPI Initiative

AsyncAPI is an open source project. The initiative works on AsyncAPI specification and tools for it. It's goal is too make it easier to build and maintain event-driven architectures. Postman actively supports the project and delegates it's employees to work on AsyncAPI.

Learn more | Source code

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  • javascript
  • graphql
  • node.js
  • openapi
  • rest api


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Postman 2021 Projects

  • Sarthak Saxena
    API Conversion API
    There is currently no open source API specification format and schema converter API that provides conversion between multiple formats. The proposed...
  • Nektarios Gkikakis Fifes
    AsyncAPI Application simulation
    The scalable , extendable backend services stress tester.
  • Arjun Garg
    AsyncAPI Applications Relations Finder
    AsyncAPI aims to set an industry standard for messaging APIs by providing a set of tools and features to improve the current state of Event-Driven...
  • Khuda Dad Nomani
    AsyncAPI Document Optimizer
    AsyncAPI offers many different ways to reuse certain parts of the document like messages or schemas definitions or references to external files, not...
  • Aayush Sahu
    AsyncDiff is a library which compares two AsyncAPI Documents and generates diff between the two.
  • Wahab Oguntade
    Chatbot for AsyncAPI Creators Project Proposal
    The project's aim is to develop a chatbot that can help people create spec documents without knowing the specification.To get started with, the bot...
  • Rishi Purwar
    Contributing to Postman Public Workspace
    Build utilities for Postman entities
  • Manan Sharma-1
    Newman Dashboard
    Newman Dashboard is a real-time WebUI dashboard which can let users control and view the currently executing as well as the previously executed...
  • Raghav Bhatia
    Newman Request
    Current version of Newman ships with a command - newman run - that allows users to effortlessly run and test postman collections from the...