Capture requests from any website and send them to Postman Client.

Latest Version

Version
3.2.0
Update
July 5, 2024
Size
478KiB
Developer
postman.com
Category
Users
800,000+
Rating
4.29676 ★
Manifest Version
3
Web Store Status
Languages Support
English
See more
Permissions
WebRequest
NativeMessaging
Storage
Cookies
Scripting
Tabs
See more

Postman Interceptor Extension

Postman Interceptor helps you send requests which use browser cookies through the Postman app.
It can also send headers which are normally restricted by Chrome but are critical for testing APIs. The Interceptor makes this process painless. Something that would have required a proxy earlier can now be achieved without any installation steps or extra configuration.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "Postman Interceptor", "description": "Capture requests from any website and send them to Postman Client.", "icons": { "16": "assets/interceptor_16x16.png", "32": "assets/interceptor_32x32.png", "48": "assets/interceptor_48x48.png", "128": "assets/interceptor_128x128.png" }, "action": { "default_title": "Postman Interceptor", "default_icon": "assets/interceptor_48x48.png", "default_popup": "html/index.html" }, "content_scripts": [ { "matches": [ "*://*.postman-beta.co/*", "*://*.postman-stage.co/*", "*://*.postman-preview.co/*", "*://*.postman.co/*" ], "js": [ "content_script.js" ] } ], "background": { "service_worker": "background/background.js", "type": "module" }, "host_permissions": [ "*://*/**" ], "permissions": [ "webRequest", "nativeMessaging", "storage", "cookies", "scripting", "tabs" ], "manifest_version": 3, "version": "3.2.0"}
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How to download and manually install Postman Interceptor extension for Chrome

Looking for a way to install Postman Interceptor extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Postman Interceptor extensions manually, this article outlines two simple methods to effortlessly install Postman Interceptor extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Postman Interceptor extension and manually install through Drag &Drop

If you ever need to manually install a Postman Interceptor extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Postman Interceptor Extension by clicking the "Download CRX" button on the website.

Look for the Postman Interceptor extension you wish to install. Go to the website and download the Postman Interceptor extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Postman Interceptor extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Postman Interceptor extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Postman Interceptor extension for Chrome and install in Developer Mode

This is another method to install Postman Interceptor extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Postman Interceptor extension file

Select and download the Postman Interceptor extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Postman Interceptor extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Postman Interceptor extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Postman Interceptor extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Postman Interceptor extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Minh Phu Lai (ID: 0000008dd97c1329) Voted 1 ★ - Updated 11/26/2023 Updated Postman to latest version, it keeps saying Interceptor disconnected

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Paulius Stasiūnas (ID: 00000053595317a2) Voted 4 ★ - Updated 08/29/2023 Update: issue fixed. Used to work great, now is completely useless then you try capture graphql request. i try update postman and chrome plugin but didn't get better result. now postman just skip any graphql request to my api.

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Andy Lee (ID: 0000000773f925b0) Voted 1 ★ - Updated 08/28/2023 Interceptor Disconnected on macOS Interceptor no longer works on macOS. Doesn't get connected.

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Sergei (ID: 0000008a4597e11c) Voted 2 ★ - Updated 08/23/2023 Not works on latest macos Interceptor disconnected

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Josh Makar (ID: 000000a72c297fe7) Voted 4 ★ - Updated 08/22/2023 Update: The docs specifically say that there's no need to install the interceptor bridge when using Mac. I went ahead and installed the bridge anyway and was able to get passed the "Interceptor disconnected" issue. -1 star for documentation discrepancy. Other than that, it works. Previous review: 1 star. Worked for one day, now it just says, "Interceptor disconnected". Went through all sorts of troubleshooting steps to no avail. =/