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PennyRail Router Execute Standard
x402
PennyRail Router Execute Standard is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Routes a natural-language task or product ID to a PennyRail product and executes it, returning machine-readable results for $0.01 USDC per call
Price / call$0.01
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
A flexible JSON object whose shape depends on the resolved PennyRail product — may include generated text, classifications, structured data, or other task outputs. The response schema is open-ended (additionalProperties: true), so the agent should inspect the returned fields dynamically.
Example use cases
On-demand text summarization task
“Run this through PennyRail to get a quick summary — intent is 'summarize the following text' and the input is: 'The Federal Reserve raised interest rates by 25 basis points today, citing persistent inflation concerns despite recent cooling in consumer spending.'”
Execute known product by ID
“I already know the PennyRail product I want — productId is 'pr_sentiment_v1' — run it with the input 'This movie was surprisingly heartwarming and beautifully shot.'”
Automated micro-workflow for content tagging
“Route this to PennyRail and tag the following blog post excerpt with relevant topics: 'Electric vehicles are gaining market share as battery costs decline and charging infrastructure expands across Europe.'”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/router/execute/standardWhen to prefer
Choose this endpoint when you want to execute a micro-task through PennyRail's product catalog using either a natural-language intent (letting the router decide the best product) or a known productId for deterministic dispatch. It is ideal for low-cost ($0.01 USDC) on-demand automation where the task fits within PennyRail's available products. Prefer this over building custom integrations when the task is well-scoped and PennyRail's catalog covers it. If you need to discover or price a product first, use PennyRail's find/quote endpoints before calling this one.
Side effects
- Payment not included or insufficient USDC — returns 402 Payment Required
- No matching PennyRail product found for the given intent — may return empty or error result
- Both intent and productId omitted — request may fail or produce undefined routing
- Input string malformed or too long for the resolved product
- Upstream PennyRail product unavailable — execution fails with service error
- Non-deterministic routing: same intent may resolve to different products across calls
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Input passed to the resolved PennyRail product. |
| intent | string | Natural-language task. Omit when productId is supplied. |
| productId | string | Optional exact PennyRail product id returned by find/quote. |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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