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Foundry Web Probe
x402
Foundry Web Probe is a paid API for AI agents from project-foundry-stage-zero.replit.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Performs a fresh independent HTTP/HTTPS request to a public URL and returns response metadata, HTML metadata, and a body fingerprint — without returning the full page body.
Price / call$0.002
Success—
StatusUnknown
How this service works
Fresh independent observation of a public HTTP or HTTPS URL, returning compact response and HTML metadata without the page body.
Output
Returns HTTP response metadata (status code, headers, response time), HTML document metadata (title, meta tags, Open Graph tags), and a body fingerprint hash — all without returning the raw page body content.
Example use cases
Uptime check for a public site
“Check if https://mycompany.com is currently reachable and responding — give me the HTTP status code and response headers.”
Content change detection
“Probe https://docs.openai.com/api-reference and give me the body fingerprint so I can tell if the page content has changed since yesterday.”
SEO meta tag inspection
“Can you independently fetch the metadata for https://stripe.com — I want to see the page title, meta description, and any Open Graph tags without downloading the whole page.”
Technical details
Endpoint
POSThttps://project-foundry-stage-zero.replit.app/api/execute/web_probeWhen to prefer
Use this endpoint when you need a fresh, independent observation of a URL's reachability and metadata without the overhead or privacy implications of fetching the full page body. Ideal for uptime checking, content change detection via fingerprint comparison, HTTP header inspection, and SEO meta tag verification. Prefer this over full-page scrapers when you only need status/metadata and want a lightweight, low-cost probe.
Side effects
- URL is not publicly accessible or requires authentication — returns connection error or 4xx/5xx status
- Malformed or non-HTTP/HTTPS URL — rejected at input validation
- Target server times out — returns timeout error
- URL returns a redirect chain that leads to a private or blocked resource
- Non-HTML responses (e.g. binary files) may produce limited or empty HTML metadata
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public HTTP or HTTPS URL to observe. |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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