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S4E
s4e.io › home › free security tools › information scans › api endpoint scanner
Online API Endpoint Scanner | S4E Free Tools
December 16, 2023 - Find API Endpoints with our free tool Used 2,212 times across 3,348 continuously checked assets.
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Medium
medium.com › @optimus-pryme › reverse-engineering-apis-and-find-endpoints-fd06907cc1a5
REVERSE ENGINEERING APIs TO FIND ENDPOINTS | by Newman Mortey | Medium
March 23, 2023 - It’s simple……Manually browser the web application and allow the proxy to log all the endpoints. Yes we are not automating this time and i know it hurts · To demonstrate this, we are going use a publicly accessible API from my APIsec course here.
Discussions

java - Is there a way to discover all endpoints of a REST API? - Stack Overflow
I'm wondering if its possible to programmatically discover all the endpoints of a particular API. So for example if I GET this URL with a browser or curl: https://api.twitter.com/1.1/ I might get More on stackoverflow.com
🌐 stackoverflow.com
Need help finding API Endpoints of a site:
https://marketplace.nflallday.com/api/marketplace/editions In chrome developer tools filter by Fetch/XHR and check 'editions' request. More on reddit.com
🌐 r/webscraping
5
1
April 22, 2022
API Scanner - automated security testing tool that scans REST and SOAP APIs for vulnerabilities
Does this try to actually make API requests or is it mostly trying to look and see if endpoints are marked as having security enabled? More on reddit.com
🌐 r/blueteamsec
3
1
February 12, 2026
Finding API endpoints in the browsers debug/developer mode.
Others have answered with some of the potential issues, but haven't actually answered how to find the endpoints, so I guess I'll do that. Open the browser developer tools (default keybind is F12.) Go to the Network tab. Refresh the page to see all requests made while the page initially loads. There might be relevant stuff there. Once the page is loaded, fill out whatever form you need to and submit it. The new request(s) will be shown in the Network tab. All you can do is look at the requests and try to figure out which are the ones you're actually interested in. There will be plenty of clues to help you figure that out, for instance the URL and the request and response data. More on reddit.com
🌐 r/learnprogramming
6
2
January 26, 2022
People also ask

What if no endpoints are found?
Modern Single Page Applications (SPAs) load data dynamically. The API endpoints might not be hardcoded in the HTML but constructed by JavaScript at runtime. In this case, use our 'AJAX Request Detector' or the 'Use Network Tab' browser trick to catch the requests as they happen.
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manypi.com
manypi.com › home › free tools › api endpoint detector
API Endpoint Detector - Free Tool | ManyPI
Why should I look for APIs?
Web scraping via API is vastly superior to scraping HTML. APIs return structured JSON data that is clean, machine-readable, and often contains more fields than what is displayed on the UI. It's faster, more reliable, and less prone to breaking when the website design changes.
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manypi.com
manypi.com › home › free tools › api endpoint detector
API Endpoint Detector - Free Tool | ManyPI
How does this tool work?
This tool downloads the raw HTML source of the page and uses heuristics (pattern matching) to find URLs that look like API endpoints. It scans for keywords like `api`, `v1`, `graphql`, `.json`, and `wp-json`. It filters out common static assets to highlight legitimate data sources.
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manypi.com
manypi.com › home › free tools › api endpoint detector
API Endpoint Detector - Free Tool | ManyPI
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Apify
docs.apify.com › api scraping › general api scraping
Locating API endpoints | Academy | Apify Documentation
In order to retrieve a website's API endpoints, as well as other data about them, the Network tab within Chrome's (or another browser's) DevTools can be used.
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ManyPI
manypi.com › home › free tools › api endpoint detector
API Endpoint Detector - Free Tool | ManyPI
Scan webpage source code to discover hidden API endpoints, GraphQL queries, and backend service URLs used for data fetching.
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DEV Community
dev.to › ikram_khan › finding-api-endpoints-scrape-the-data-source-not-the-website-2a49
Finding API Endpoints: Scrape the Data Source, Not the Website - DEV Community
January 3, 2026 - The moment I learned to find API endpoints changed everything. I was struggling to scrape a product listing site with Selenium.
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Medium
generative-ai-newsroom.com › uncovering-hidden-apis-on-the-web-db9ec01eb2e0
Uncovering Hidden APIs on the Web | by Evan Chen | Generative AI in the Newsroom
May 19, 2025 - To expand journalists’ ability to find new undocumented APIs I have been developing a tool that automates this process with the help of LLMs. It captures and filters network traffic, uses AI to identify promising endpoints, and extracts the headers needed to make real API requests.
Find elsewhere
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Chrome Web Store
chromewebstore.google.com › detail › api-finder › fmaeoejlagfppclfolbaddbofocjfjka
API finder - Chrome Web Store
July 3, 2026 - API Finder is a passive API attack-surface mapper that runs silently in your browser. As you navigate web applications, it automatically discovers API endpoints, flags security risks, and builds a live inventory of routes with zero active scanning.
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Apibanana
apibanana.com › home › free tools › api tester
Free API Endpoint Tester — Test Any REST API Online | ApiBanana
Test any REST API endpoint online for free. Send GET, POST, PUT, DELETE requests, view response headers, status codes, and body. No signup required.
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Medium
infosecwriteups.com › 5-methods-i-use-to-discover-apis-6d646baa3ffb
5 Methods I Use To Discover APIs. While working on a target, some of the… | by Chux | InfoSec Write-ups
June 17, 2024 - One of the greatest tools out there for discovering API endpoints and harvesting some secrets at the same time is WaybackMachine. We all know that by searching a URL there we can view the target’s page in a specific date. The magic comes that we can also get a list of URLs in GET requests.
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ReqBin
reqbin.com
Online API Testing Tool | Test Your API Online
Online API testing tool: send HTTP requests from your browser and check what the API endpoint returns. A free Postman online alternative — no install, no login.
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YouTube
youtube.com › watch
Finding and exploiting an unused API endpoint - Lab#02 - YouTube
In this video, I walkthrough solving a lab by discovering and exploiting an unused or hidden API endpoint to purchase a Lightweight l33t Leather Jacket. By i...
Published: July 25, 2024
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Reddit
reddit.com › r/webscraping › need help finding api endpoints of a site:
r/webscraping on Reddit: Need help finding API Endpoints of a site:
April 22, 2022 -

I'm looking for the API endpoints for the following website:

https://marketplace.nflallday.com/

There are a lot of listings on this page. The page defaults to filtering these listings by "Newest Listings" on the far right. If you continually refresh, the listings will be updated to the newest. If you click on a listing, it shows the Price for certain Serials. I'm trying to write a python script to scrape the data, but I can't seem to find the API endpoints that detail the Price and Serial for each listing. In short, I would like to know the API endpoints to scrape the Price and Serial of each listing.

I've opened the chrome developer tools and tried searching the network for Serial and Price, but I am quite noobish and probably not seeing something right in front of me. Any help or tips would be greatly appreciated!

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Medium
medium.com › @alostwarrior › how-to-find-endpoints-in-web-applications-541ee1225b05
HOW TO FIND ENDPOINTS IN WEB APPLICATIONS | by Tushar Singh | Medium
December 7, 2022 - There are a lot of tools to monitor the attack surface, BURP Suite is one of them. We can use burp to find the endpoints and intercept request and response as well.
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Anythingtext
anythingtext.com › api-endpoint-extractor
API Endpoint Extractor — Free Online Tool | AnythingText
Scan GitHub repos and extract API endpoint definitions from Express, Spring Boot, Flask, Django, FastAPI, Rails, Go, Laravel, and ASP.NET. Free, runs in your browser, no signup needed.
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GitHub
github.com › topics › endpoints-finder
endpoints-finder · GitHub Topics · GitHub
A powerful Bash script for extracting URLs and API endpoints from HTML, JavaScript, and JSON content of web pages. Designed for security researchers, bug bounty hunters, and developers to streamline endpoint discovery.
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Medium
iaraoz.medium.com › hacking-apis-discovering-enumeration-api-endpoint-b38590ab78e3
Hacking APIs: Discovering & Enumeration API/Endpoint | by Israel Aráoz Severiche | Medium
November 14, 2023 - If you are using crAPI and you try to login, the first endpoint that you can see is identity/api/auth/login, this endpoint was called with POST method and we send user/pass as part of the request to the endpoint.
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DEV Community
dev.to › intesar › security-test-rest-apis-in-minutes-for-free-11d1
Security Test REST APIs in Minutes for Free - DEV Community
August 23, 2022 - Processing: Once your request is submitted. The EthicalCheck engine creates a map of all your API endpoints. It then automatically writes security tests covering the OWASP API #2. Finally, it runs the tests against your API.
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REST test test
resttesttest.com
REST test test...
× Welcome! Use this simple page to poke around at the API. Specify HTTP method, URL and parameters, and click on Ajax Request.