Shopping · stjohnslabs.com

St John's Laboratory

Supplier of research antibodies, proteins and ELISA kits. Its only tools check page images for C2PA content credentials.

Open stjohnslabs.com

Ask an agent to

Check which images on this page have C2PA credentials
Show the full C2PA manifest for this product image
Verify whether this figure has provenance metadata

2 tools

These are Cloudflare’s tools: Cloudflare can add them to sites built on it, and we saw the same set on 258 sites.

inspect_image_c2pa
Fetch a single image (by CSS selector or URL) and return its fully decoded C2PA manifest store: every manifest's claim, assertions (e.g. c2pa.actions edit history, schema.org authorship), and the COSE signature…
selector: string?, url: string?
scan_images_c2pa
Scan every <img> on the current page for C2PA Content Credentials (content provenance metadata) and return a per-image summary: whether a manifest is present, the claim generator (the tool that produced or edited the…
limit: integer?

Tools: 2
Registered with: JavaScript
Platform: Cloudflare
Tranco rank: #59,934
Scan finished: Oct 19, 2026

The tool names are what stjohnslabs.com/ registered when we loaded it in Chrome 154 on Browser Use Cloud. The descriptions are Cloudflare’s text, the same on every Cloudflare site we checked. The summary and the “ask an agent” lines are AI-written from them. To call the tools yourself, see Chrome’s WebMCP docs. How we found it.

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