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PennyRail HTTP Headers Resource Node
x402
PennyRail HTTP Headers Resource Node is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-22).
Fetches or processes HTTP header information for a given web resource via a paid settlement endpoint using the x402 micropayment protocol
Price / call$0.003
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns an object containing HTTP header key-value pairs and associated metadata extracted from the target web resource, such as content-type, server, cache directives, and security-related headers.
Example use cases
Security header audit for a website
“Check what HTTP security headers are being returned by my website — I want to know if things like X-Content-Type-Options, Strict-Transport-Security, and Content-Security-Policy are present.”
Debugging cache behavior on an API
“I'm having caching issues with my API endpoint — can you pull the HTTP headers it returns so I can see the Cache-Control and ETag values?”
Verifying content type of a remote resource
“Can you inspect the HTTP headers of this web resource and tell me what Content-Type and Content-Encoding the server is declaring?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/network/web.http-headers--http-headers?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to programmatically retrieve HTTP headers from a web resource as part of an automated agent workflow, especially when operating in a micropayment-gated (x402) environment where per-call billing is acceptable. Useful for infrastructure inspection, debugging, or security auditing tasks where a paid, machine-readable settlement layer is required.
Side effects
- Invalid or missing input object results in schema validation error
- Target resource unreachable returns network or timeout error
- Payment failure via x402 protocol blocks request execution
- Resource returns unexpected non-HTTP response
- Malformed URL or resource identifier causes lookup failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
Reviews
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