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Expect-CT Response Header Inspector
x402
Expect-CT Response Header Inspector 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).
Checks whether the Expect-CT HTTP response header is present on a given URL, returns its raw value, and provides a plain-English interpretation of its security implications.
Price / call$0.01
Success—
StatusUnknown
How this service works
The expect-ct 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 Expect-CT header is present on the target URL's HTTP response, its raw header value if found, and a one-line human-readable interpretation of the value's security meaning or an explanation of the security risk posed by its absence.
Example use cases
Security audit for client website
“I need to audit https://shop.acmecorp.com — can you check if the Expect-CT header is present and tell me whether the configuration is secure or if there's a risk I should flag?”
Compliance check before deployment
“Before we push the new version of https://app.myservice.io live, can you verify the Expect-CT header is properly configured and tell me what the value means?”
Monitoring script for header regression
“Can you check https://portal.financetools.net to see if the Expect-CT header is still there and correctly set — I want to make sure it didn't disappear after the last server update?”
Technical details
Endpoint
GEThttps://site.intel.rallylive.ca/site/header/expect-ct?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need to inspect the Expect-CT HTTP response header in isolation for auditing, monitoring, or compliance purposes. It is ideal for automated security scans, CI/CD pipeline checks, or lightweight monitoring scripts that need a per-header answer with a plain-English risk summary, without the overhead of a full security header analysis suite.
Side effects
- Target URL is unreachable or returns a network error, resulting in no header data
- URL is malformed or not provided, causing a request validation failure
- Target server returns an unexpected response format
- Rate limits or payment verification failure preventing the check from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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