Metadata Extraction API

Raw metadata extractor: the complete, unopinionated head inventory of a page — title, charset, lang, canonical, all meta tags grouped by family (OpenGraph, Twitter, Dublin Core, named, http-equiv, itemprop), every link relation, and JSON-LD returned as parsed objects. For agents doing their own processing (head-check audits the same data; this just dumps it). ?url=

Parameters

Example request

curl "https://api.webbersites.com/api/seo/metadata?url=https%3A%2F%2Fexample.com"
# first call returns 402 + payment requirements; an x402 client pays and retries automatically

Example response

{
    "title": "Example",
    "charset": "utf-8",
    "lang": "en",
    "counts": {
        "meta_tags": 18,
        "og": 5,
        "twitter": 4,
        "links": 9,
        "jsonld_blocks": 1
    },
    "opengraph": {
        "title": "Example",
        "image": "https://example.com/og.png"
    },
    "links": {
        "canonical": [
            "https://example.com/"
        ],
        "icon": [
            {
                "href": "/favicon.ico",
                "sizes": "32x32"
            }
        ]
    },
    "jsonld": [
        {
            "@type": "Organization"
        }
    ]
}

How payment works

There is no signup and no API key. Call the endpoint; it replies 402 Payment Required with machine-readable payment requirements. Your client signs a USDC transfer authorization (EIP-3009, gasless) and retries with the X-PAYMENT header — @x402/fetch does this automatically. See the overview for a working snippet.