Turn a Website into an API with the Web Scraping API Builder
A website-to-API tool extracts data from a webpage and exposes it through a reusable endpoint. Apps Manager combines a visual element picker, HTML or browser-based extraction, field transformations, and a dynamic API gateway so your application can request JSON instead of parsing HTML itself.
Overview & Architecture
Use the builder when a site you are permitted to access has useful product listings, article summaries, directories, or tables but no suitable API. You configure the source and output fields once, test the extracted data, then link the scraper to a route in your application. Consumers call that route using its configured HTTP method and access policy.
Detailed Implementation Guides
1Website to API vs. a one-off web scrape
A one-off scrape fetches data for a single task. A published scraping API gives other applications a stable interface and centralizes extraction rules. Update your scraper when the source changes while keeping the consumer-facing route consistent.
| Need | Approach |
|---|---|
| Inspect a page once | Test a scraper in the console |
| Reuse extraction in an app | Publish a dynamic API backed by the scraper |
| Collect repeated records | Configure a table, list, or card collection |
| Reduce repeated fetches | Configure the available cache or refresh policy |
2What to check before relying on an endpoint
Confirm that selectors return the intended records, credentials are scoped to the correct app, and callers can handle failures. Source redesigns, login expiry, network errors, and anti-bot challenges can interrupt extraction. Test a small set of representative pages rather than assuming every URL has the same layout.
Step-by-Step Quickstart
11. Create an application and scraper
Sign in to Apps Manager, create or select an application, and open its scraping workspace. Enter the source webpage URL. Start with a page you control so you can verify the results against known data.
22. Select the fields you need
Use the visual element picker or enter selectors for fields such as title, price, and link. For repeated cards, lists, or table rows, configure a collection and map the fields inside each item. Preview the values before saving.
33. Test the rendering and transformations
Choose HTTP_CHEERIO for content present in the original HTML, or CHROMIUM_CDP for pages that render data with JavaScript. Configure waits when necessary. Add explicit transformations for numeric prices or boolean values and check missing-field behavior.
44. Publish and call the API
Create a dynamic API using your saved scraper as its source. Choose its route, method, access policy, and caching behavior. The example below assumes you created a GET route at /products; it is not a preinstalled endpoint.
# First publish a GET endpoint at /products in your application. # Replace YOUR_APP_ID with the application ID shown in your console. # Keep API keys on your server, not in public browser code. curl "https://apps-manager.in/api/apps/YOUR_APP_ID/data/products" \ -H "x-api-key: YOUR_API_KEY"
Frequently Asked Questions
Can I convert any webpage into an API?
Many HTML and JavaScript pages can be mapped to an API, but there is no guarantee for every site. Access requirements, unsupported interactions, changing layouts, and anti-bot checks affect compatibility. Test the target page before integrating it.
Do I need to write a scraper from scratch?
The visual builder handles field selection and endpoint configuration. You may still need to understand selectors, configure transformations, and write client code that calls your published endpoint.
Where is my published API URL?
The runtime uses /api/apps/YOUR_APP_ID/data/YOUR_ROUTE. Copy your application ID and route from the console and use the method and authentication policy configured for that API.
Start Building with Apps Manager Today
Build databases, create scraping APIs, convert websites to JSON, and issue Ed25519 cryptographic software licenses in minutes. Zero credit card required.