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PennyRail Mock OpenAPI Settlement Node
x402
PennyRail Mock OpenAPI Settlement Node is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status down (last checked 2026-10-22).
Returns a mock/sample OpenAPI response for a nano-payment-gated settlement resource endpoint on PennyRail
Price / call$0.001
Success—
StatusDown
How this service works
Machine-readable settlement service
Output
Returns an unstructured JSON object that serves as a mock/sample OpenAPI response — the exact fields vary but represent a placeholder settlement confirmation or resource payload gated behind a 0.001 USDC x402 micropayment.
Example use cases
Test x402 payment flow integration
“I want to test my x402 micropayment integration — can you send a request to the PennyRail nano node with a basic input object and show me what mock response comes back?”
Prototype agent with micro-fee gating
“I'm building an AI agent that needs to pay tiny fees to access gated APIs. Can you call the PennyRail resource node with an empty input object so I can see what a successful paid response looks like?”
Validate settlement mock response shape
“Can you hit the PennyRail nano mock endpoint with a sample input and tell me exactly what JSON structure it returns? I need to know the response schema before I build my integration.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/openapi.mock-response--openapi-sample-response?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to test or prototype an x402 micropayment flow against a live but mock-response endpoint, or when you want to verify your agent's ability to handle 402-gated APIs without a real data dependency. Not suitable for production data retrieval or real settlement operations.
Side effects
- Payment not included or invalid x402 header — returns 402 Payment Required
- Malformed input object — returns 400 Bad Request
- Service unavailable on Vercel deployment — returns 503 or timeout
- Missing required 'input' field — schema validation failure
- USDC balance insufficient to cover 0.001 USDC fee — payment rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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