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PennyRail URL/Domain Resource Node
x402
PennyRail URL/Domain Resource Node is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status down (last checked 2026-10-23).
Accepts a URL or domain string as input and returns a machine-readable settlement response via the x402 micropayment protocol
Price / call$0.001
Success—
StatusDown
How this service works
Machine-readable settlement service
Output
A JSON object with arbitrary key-value fields (additionalProperties: true) representing machine-readable settlement or resource data associated with the submitted URL or domain. The exact shape of the response depends on the resolved resource and may vary per call.
Example use cases
Resolve domain metadata via micropayment
“Run 'shop.acme.io' through the PennyRail resource node and give me whatever machine-readable data it returns about that domain.”
Check URL resource settlement data
“I need the settlement response from PennyRail for 'https://api.partner.com/v2' — can you query that URL through their nano endpoint?”
Automated per-call URL enrichment
“For each of these hostnames, hit the PennyRail resource node and collect the machine-readable output: 'blog.startup.dev'.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/url.domain--hostname-from-url?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-call, machine-readable lookup of a URL or domain resource and are already operating within an x402 micropayment workflow. It is well-suited for automated agent pipelines that need lightweight, per-call pricing at $0.001 USDC. Prefer it over free alternatives when payment-gated data access or x402-compatible settlement is a requirement.
Side effects
- Payment failure or insufficient USDC balance causing 402 response
- Invalid or malformed URL/domain input returning an error
- Empty or null input field causing schema validation failure
- Upstream resolution failure returning empty or error payload
- Rate limiting or quota errors from the Vercel-hosted service
- Unstructured or unexpected response shape due to open additionalProperties schema
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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