# Postman developer resources You can use a variety of Postman developer resources in your projects, including APIs and libraries. You can use and contribute to Postman's [open-source](https://www.postman.com/open-philosophy/) projects on [GitHub](https://github.com/postmanlabs). Check out the pages in this section for an intro to developer resources that enable you to engage with the Postman community and integrate Postman into your workflow. * [Postman API](/docs/developer/postman-api/intro-api/): Make requests to access your Postman data. * [Echo API](/docs/developer/echo-api/): Use the Echo API to learn and experiment with Postman. * [Postman Collection Format schema documentation](https://schema.postman.com/): The Collection Format is the specification that drives collections in Postman. It's portable and provides a unique interface for organizing API requests and modeling API workflows. It's machine and human-readable and can be used to generate client and server-side SDKs, documentation, and mock servers. Learn more at the Postman Collection Format schema documentation. * [Postman Collection SDK](/docs/developer/collection-sdk/): The Postman Collection SDK is a JavaScript module for working with [collections](/docs/sending-requests/create-requests/intro-to-collections/). * [Runtime library](/docs/developer/runtime-library/): The Runtime library powers Postman request sending functionality. * [Postman VS Code extension](/docs/developer/vs-code-extension/overview/): The VS Code extension enables you to develop and test your APIs from Visual Studio Code and other supported applications. * [Code generators](/docs/developer/code-generators/): Postman uses the code generators SDK to create client snippets from your requests. * [Postman Collection converters](/docs/developer/collection-conversion/): The converters empower you to transform OpenAPI, Swagger, RAML, GraphQL, and WSDL specs to Postman Collection format.