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Response Header: Access-Control-Allow-Credentials Checker
x402
Response Header: Access-Control-Allow-Credentials Checker is a paid API for AI agents from site.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Fetches a URL and returns whether the Access-Control-Allow-Credentials response header is present, its value, and a plain-language interpretation of what the value means for CORS security.
Price / call$0.01
Success—
StatusUnknown
How this service works
The access-control-allow-credentials response header of a URL: whether it is present, its value, and a one-line reading of what the value means (or the risk of its absence for security headers). One header, one answer, for audits and monitoring scripts. $0.01 per check.
Output
Returns whether the Access-Control-Allow-Credentials header is present on the target URL's HTTP response, its exact value (e.g. 'true' or absent), and a one-line human-readable interpretation of the security implications — such as whether credentials like cookies are exposed to cross-origin requests or whether the absence of the header poses a risk.
Example use cases
CORS security audit for API
“I'm doing a security review of our API at https://api.mycompany.com — can you check if the Access-Control-Allow-Credentials header is set, what its value is, and flag any risks?”
Monitoring credentials header on production
“Set up a check on https://checkout.storefront.io — I want to know if the Access-Control-Allow-Credentials header changes or goes missing so I can catch CORS misconfigurations early.”
Third-party site CORS compliance check
“Before we integrate with https://payments.partner.io, can you verify what their Access-Control-Allow-Credentials header says and explain if that creates any cross-origin credential exposure risk?”
Technical details
Endpoint
GEThttps://site.intel.rallylive.ca/site/header/access-control-allow-credentials?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, single-header answer specifically about CORS credential exposure (Access-Control-Allow-Credentials) on a given URL. Ideal for security audits, compliance checks, or monitoring pipelines where you only need this one header's status rather than a full HTTP header dump or CORS suite scan.
Side effects
- Target URL is unreachable or times out — no header data returned
- Target URL returns non-HTTP response (e.g. invalid domain) — error returned
- Header is absent — response indicates absence with security risk note
- Network or DNS resolution failure for target domain
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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