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PennyRail LLM Mini Proven - AI Text Generation Node
x402
PennyRail LLM Mini Proven - AI Text Generation Node is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).
Provides paid LLM inference via a micropayment-gated REST endpoint, processing AI language model requests for $0.01 USDC per call
Price / call$0.01
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object with the LLM-generated response to the submitted input prompt; schema is open-ended (additionalProperties: true), so the exact shape of the response fields depends on the underlying model configuration but typically includes the generated text output.
Example use cases
Budget AI summarization pipeline
“Summarize this product review using a cheap LLM call — I want to process hundreds of these for under a dollar total, so use the one-cent-per-call mini model.”
Agent sub-task text generation
“I need a small AI model to draft a one-paragraph reply to this customer complaint — use the cheapest LLM endpoint available that's pay-per-use with crypto.”
Micropayment LLM experimentation
“Run my test prompt through the PennyRail proven-LLM node and show me what it returns — I'm benchmarking low-cost inference options that accept USDC micropayments.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/standard/ai.llm-mini--proven-llm?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need extremely low-cost LLM inference at $0.01 per call, especially in high-volume agent pipelines where cost control matters. Prefer it over larger hosted models (GPT-4, Claude) when the task is simple enough for a mini/proven LLM tier and you want pay-per-use billing in USDC via the x402 protocol without API key subscriptions.
Side effects
- Payment not included or invalid USDC amount returns 402 Payment Required
- Malformed input object missing required 'input' field returns 400 Bad Request
- Model backend unavailable returns 503 or 500 error
- Insufficient USDC balance causes payment failure before inference executes
- Rate limiting or abuse detection may block repeated rapid calls
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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