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PennyRail JSON Resource Node
x402
PennyRail JSON Resource Node is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-23).
Fetches and returns a JSON resource node value by path using a machine-readable settlement protocol over x402
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object containing 'operation' (a string naming the operation performed) and 'result' (the resolved value at the requested path), along with any additional fields from the resource node.
Example use cases
Agent reads a configuration value
“Can you pull the value at path 'config.featureFlags.darkMode' from the PennyRail JSON resource node and tell me what it is?”
Check a settlement field in real time
“Grab the 'settlement.status' field from the PennyRail JSON resource node — I want to know the current settlement state.”
Extract nested pricing data
“Retrieve the value at 'pricing.tiers.pro' from the PennyRail JSON resource node so I can display the pro tier price to the user.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/f/json.get?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to retrieve a specific JSON value by path from PennyRail's resource node system and are operating in an x402 micropayment-enabled environment. It is well-suited for agents that need to access structured data fields programmatically with minimal cost ($0.001 USDC per call). Prefer alternatives if you need write access, bulk queries, or do not support x402 payment headers.
Side effects
- Invalid or missing 'input' object returns a validation error
- Path not found in the resource node returns a null or empty result
- Payment failure over x402 (insufficient USDC balance, network error) blocks the request
- Malformed path string may cause unexpected resolution behavior
- Service unavailability on Vercel returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | {value,path} |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| resultrequired | — | |
| operationrequired | string |
Tags
x402
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