Web Scraping vs API: Which Way to Get Web Data

Use an official API or data feed when a provider offers one that already carries the fields, coverage and refresh rate you need, on terms you can accept. Use web scraping when the data you need is what the pages show and no feed gives you all of it. The two only compete at the source: at the delivery end, scraped data can reach your system through an API or a JSON feed as well.

Two sources of data, not two technologies

The question is usually framed as a choice of technique. For a buyer it is a choice of source.

• An official API or data feed is an access point the data owner designs, documents and controls. You get the fields it decides to expose, in the structure it chose, at the volume and on the terms it sets.
• Web scraping collects what the pages themselves show to visitors - prices, listings, descriptions, ratings, availability - and turns it into structured rows. You get what is published, in a structure you define.

How the result reaches you is a separate question. A managed scraping service can deliver through an API, a JSON feed or files, so "we need an API" is a delivery requirement and does not rule scraping out.

A "scraping API" is a third thing: a tool that fetches pages for your own code, while the parser and its upkeep stay with you. That is a build vs buy question.

How the two compare

Coverage

A feed covers what its owner has decided to share, and that can be a subset: some categories, some markets, only current records. If your question spans several sources, each feed arrives in its own format and the joining is yours. Collected page data follows the question instead: the same fields from several sites, in one structure.

Fields

The page a customer sees can carry more than the structured data behind it: the promotional price next to the regular one, stock by size, the seller type, the review count. Pages are built to sell and feeds are built to stay stable, so the two drift apart. Put your field list next to the feed documentation and next to a live page.

Freshness

A feed refreshes when its owner refreshes it, and your quota decides how often you can ask. Scraping refreshes on the schedule you pay for. Our plans run from a one-time extract to three deliveries a day, and a daily feed can land before your working day starts.

Cost

An API price looks simple: per call, per record or per tier. The provider sets it and can change it, and calls are not rows, so the bill depends on how many requests one useful record takes. Scraping in-house costs mostly engineering time. A managed service turns that into a plan price. How web scraping cost works explains what moves the number.

Maintenance

Official interfaces change too: versions are retired, fields renamed, endpoints moved, on the provider's calendar. Pages change more often and without notice, and any redesign can break a parser. Whoever owns the scraper owns that repair. On our monthly plans scraper maintenance is free, so a redesign is our problem and the dataset keeps arriving in the same shape.

Contracts and control

With an API you accept the provider's terms of access as offered: quotas, pricing tiers and how long a key stays valid are its decisions. With a managed service you negotiate the contract: which sources, which fields, how often, delivered where, at what price, and who fixes what. We sign a mutual NDA as standard, and a DPA where personal data is genuinely in scope.

When an official API or feed is the better choice

• It carries every field you need. Checked against your own field list, not the description of the feed.
• One source is enough. A single feed in a single format leaves nothing to reconcile.
• Its refresh rate and volume match your use. If the quota covers your load with room to spare, look no further.
• You need to write, not just read. Placing an order, updating a record or posting content is what interfaces are built for. Scraping reads; it does not act.
• You have engineers to integrate it. An API is a building block. Someone still writes the client, handles errors and stores the results.

If that describes your case, use the feed; paying a vendor to rebuild it is waste.

When web scraping is the better choice

• The fields you need are on the page. Prices as displayed, promotions, stock, rankings, reviews, descriptions.
• You need the same data from many sources. Competitor prices across marketplaces, listings across portals, vacancies across job boards, in one project instead of a stack of integrations.
• You need history on a fixed schedule. A daily snapshot kept for months shows how prices and listings move.
• You want what the customer sees. Price research is about the shelf as shoppers see it, ranking and placement included.
• Nobody on your team should own an integration. A managed service delivers the finished dataset, and nothing runs on your side.

Using both

Sometimes the answer is both. A feed covers the core where one is offered, and collected page data fills the fields and sources it leaves out. The hard part is agreement: both streams must describe the same thing in the same way, with one product ID, one currency format and one meaning for an empty field. Give the vendor your target schema and ask for the output in it.

How a managed service delivers the result

From your side, a managed scraping service looks like a data feed you did not have to build. You name the sources, fields and frequency; the vendor builds, runs and repairs the scrapers and delivers structured data. With ScrapeIt the options are:

• Our API. An endpoint we host, opened with a key.
• A JSON feed. Structured records your system picks up on its own schedule.
• Files. CSV, XLSX, JSON, JSONLines or XML, by e-mail, FTP or SFTP, or to Amazon S3, Google Cloud Storage, Dropbox or Google Drive.
• Your database. Loaded directly, where your team already works.

An MCP server is available on request. The one-time Airplane plan delivers files by e-mail or FTP; the API, the JSON feed, S3 and your own storage come with the monthly plans. If you only want what changed since the previous delivery, delta scraping is a listed option on the pricing page.

Two projects show how this works. A property agency received a report every workday at 7 a.m., with the same data uploaded into its database via API: around 85,000 rows a day, 7 days from the go-ahead to the first delivery (the CRM feed case). A startup building a used-car deal finder received a 30-day market history of 201,000 rows in 7 JSON files through our API, documented in Swagger and opened with a key (the car listings case).

What it costs, and how fast it starts

Our prices are published in full. A one-time extract of up to 100,000 rows costs EUR 199 and is collected within up to 5 working days. Monthly plans run from EUR 169 for 250,000 rows delivered monthly to EUR 549 for 3,000,000 rows delivered three times a day. The setup fee of EUR 499, or EUR 799 on the DNA plan, includes the sample dataset and the first month, and the monthly fee starts from the second month.

The project assessment is free, we reply within 1 business day, and first data comes in 1 to 10 days. Ready-made samples cost EUR 9.99 each (126 samples from 100 sources on the data sample page), and a sample collected to your own fields costs EUR 49.99. Our catalogue lists 689 platforms in 16 categories on popular sites.

A quick way to decide

1. Write down the fields, sources and refresh rate you need. "Price" is not a field list; "regular price, promotional price, currency, seller" is.
2. For each source, check whether an official feed carries all of it, at your volume, on terms you accept. If it does, use the feed for that source.
3. For the rest, compare building a scraper with buying the dataset. Build vs buy works through it.
4. If you buy, test the vendor on your own URLs first. How to choose a web scraping vendor lists the questions, and managed web scraping services compared shows how providers differ.
5. Decide how the data should arrive: API, JSON feed, files or your database. That choice does not depend on the source.

If you already know the sources and the fields, send them to us. You get a scoped answer, a price and the delivery method that fits your system.