Turn any page into the columns you asked for
Most scraping tools begin with a site and hand you its schema. This one begins with a schema and lets you point it at a site. Paste any page URLs, one per line, describe what you want - as a sentence in the Prompt box, or as a set of fields in the Schema builder - and each page is fetched and read by Claude, which returns the fields you named. There is no per-site parser here, so there is no supported-site list to check yourself against.
The two ways of asking are genuinely different tools. A prompt is loose and fast, and it is what you want while you are still finding out what a page carries. A schema pins the output down: each field has a name and a type - String, Number, Boolean, Array or Object - and can be marked required, which is how you keep the shape stable across repeated runs. The builder and the JSON view are the same schema in two forms, so a schema you already have can be pasted in, and one you click together can be copied out. You need one of the two; giving both simply tells the model the instruction and the shape.
Because you define the fields, the file has no fixed column list, and this page therefore has no data dictionary. The columns are assembled after the run from the keys that actually came back - query first when it is present, so every row records which URL produced it, then everything else in the order it first appeared. An internal position key is excluded from that list, so it shows up in neither the table nor the downloads. Two smaller differences from the rest of the platform are worth knowing: the limit counts rows per URL rather than pages and is empty by default, meaning all; and pages are fetched through the proxy pool - a paid PROXY_URL or PROXY_LIST if one is configured, otherwise the free pool, and never your own address.
One thing this page deliberately does not do is tell you how good the extraction is. Quality depends on the page and on your wording, which makes any single accuracy figure misleading in both directions, and we would rather say that than publish a number we cannot stand behind. The honest advice is the cheap one: run a single page on the free tier, read the columns you got back, adjust the field names or the sentence, and only then point it at a list. Your first 500 rows cost nothing and need no credit card. See pricing for current rates.