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PennyRail URL Resolver – Absolute URL from Relative
x402
PennyRail URL Resolver – Absolute URL from Relative is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Resolves a relative URL into an absolute URL given a base context, returning the fully-qualified absolute URL string
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns an object containing the resolved absolute URL derived from the provided relative URL and base context, suitable for direct use in HTTP requests, links, or further processing.
Example use cases
Resolving scraped hrefs to full links
“I scraped a page at 'https://news.ycombinator.com/news' and found a relative link '/item?id=12345' — can you give me the full absolute URL for that link?”
Normalizing relative redirects in HTTP responses
“I got a redirect Location header with the value '../auth/callback' from a server at 'https://api.myapp.com/v2/login' — what's the absolute URL I should redirect the user to?”
Building absolute asset URLs for email templates
“My email template references a relative image path like 'assets/header.png' and my site base is 'https://marketing.mycompany.com/' — resolve that into the full URL I can embed in the email.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/url.resolve--absolute-url-from-relativeWhen to prefer
Use this endpoint when you need a reliable, paid micro-service to programmatically resolve relative URLs to absolute ones — particularly in agent pipelines that scrape pages, process redirects, or generate links and need consistent URL normalization without implementing the RFC 3986 resolution algorithm yourself.
Side effects
- Malformed relative or base URL input may return an error or unexpected result
- Missing required 'input' object field returns a 400-level error
- Ambiguous relative paths without sufficient base context may resolve incorrectly
- Network or service unavailability returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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