Create an MCP request for your collection

You create Model Context Protocol (MCP) requests to interact with MCP servers. You can use these requests to evaluate servers, add AI to your workflows, prototype agents, and much more.

Postman supports the MCP standard input and output (STDIO) and streamable HTTP transport layers, and tools, prompts, and resources primitives.

Looking for an MCP server to try? Check out Postman's Model Context Protocol (MCP) Catalog. There you'll find MCP servers—hosted, discoverable, and ready to test. It's built with Postman Collections, so you can leverage APIs from the Postman API Network, including from verified publishers like PayPal, Notion, Stripe, and Google Maps, to ensure your agents are powered by trustworthy and reliable tools.

Create a new MCP request

To create a new MCP request, do the following:

1. Choose an existing workspace or create a new one.

2. Click New > MCP. Postman opens a new MCP request in a new tab.

3. Choose the server's communication method:

   • To use standard input and output, choose STDIO.
   • To use streamable HTTP, choose HTTP.

4. Enter the server's command (STDIO) or URL (streamable HTTP).

   Tip: Alternatively, you can paste an MCP server's JSON configuration.

5. Click Load Methods. If prompted, review the consent prompt and grant Postman access to your computer. Postman connects to the server and displays the server's methods.

6. List the server's methods:

   • To list the tools methods, open the Tools tab.
   • To list the prompts methods, open the Prompts tab.
   • To list the resources methods, open the Resources tab.

   You can also Search for a method.

7. Choose a method and define its arguments. Postman creates a JSON Message for you.

8. If you must authenticate, add your authorization details:

   • To set up STDIO authorization, open the Environment tab and add your authorization key-value pairs.

     Important: Use variables to protect your sensitive data. To learn more, see Variable types.

   • To set up streamable HTTP authorization, open the Authorization tab, select an Auth Type, and add your authorization details. To learn more, see Add API authorization details to requests in Postman.

9. Click Run.

Postman returns your response in the Response tab. Postman also returns notifications in the Notifications tab. You can use the steps in the following section to save your new MCP request to a collection.

Save your new MCP request

If you don't have any multi-protocol collections in your workspace, Postman opens a save request dialog that asks you for a request and collection name. Otherwise, Postman displays more options, such as the option to add your new MCP request to an existing collection.

To save your new MCP request, do the following:

1. Click Save. Postman opens a save request dialog.
2. Name your new MCP request.
3. If you don't have any multi-protocol collections in your workspace, name your collection and skip to the last step.
4. (Optional) Click Add description and describe your new MCP request.
5. To save your new request to an existing collection, select a collection. To save your request to an existing folder, select a folder. If you want to search for a collection or folder, enter your search term in the search box.
6. If you want to create a new collection, click New Collection, name your collection, and click Create. If you want to create a new folder, click New Folder, name your folder, and click Create.
7. Click Save.

Your new MCP request is ready to use to interact with an MCP server. You can also manage your settings.