OpenGraph Checker API

GET /api/og/check $0.01 per call USDC on Base · x402

Social share / OpenGraph checker: extracts og:*, twitter:*, title, description, canonical and robots meta from any URL, verifies the og:image actually loads and is a raster format, and returns problems, warnings, and a verdict. For publishing and SEO agents shipping pages that get shared.

Parameters

Name	In		Description
`url`	query	required	Public URL of the page to check

Example request

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

Example response

{
    "url": "https://example.com/blog/post",
    "problems": [
        "og:image missing — links will share without a preview image."
    ],
    "warnings": [
        "twitter:card missing — use 'summary_large_image' for the big card."
    ],
    "verdict": "broken"
}

MCP tool: get_og_check — via npx -y webbersites-x402-mcp (local, key stays on your machine) or the remote endpoint https://api.webbersites.com/mcp.

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.