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PennyRail Micro Router – Execute
x402
PennyRail Micro Router – Execute is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-13).
Routes a natural-language task or exact product ID to the appropriate PennyRail micro-service and executes it, returning the result for $0.004 USDC per call.
Price / call$0.004
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
A JSON object whose shape depends on the resolved PennyRail product. The agent receives whatever the downstream micro-service returns — which may include generated text, structured data, classification labels, or other task-specific payloads. The schema is open (additionalProperties: true), so the agent should inspect the response keys dynamically.
Example use cases
Auto-route a summarization task
“I have a block of text I want condensed. Route it through PennyRail with the intent 'summarize this into 3 key points' and pass the article as the input.”
Execute a known product by ID
“I already have a PennyRail product ID for a translation service — run it with my English paragraph as the input and give me the result.”
Delegate an ambiguous micro-task
“I'm not sure which PennyRail product handles sentiment scoring — just send the intent 'classify the sentiment of this review' with the review text as input and let the router figure it out.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/router/execute/microWhen to prefer
Choose this endpoint when you want to dispatch a task to PennyRail's ecosystem of micro-services without hard-coding a specific service URL — especially useful when the right product is unknown and you want intent-based routing. If you already have a productId from a prior find/quote step, pass it here to skip routing overhead. Prefer this over calling individual PennyRail service endpoints directly when you need a single, stable entry-point for dynamic task dispatch at very low cost ($0.004 USDC).
Side effects
- Ambiguous or unresolvable intent — router cannot find a matching product and returns an error or empty result
- Invalid or non-existent productId — call fails with a not-found error
- Malformed input string — downstream product rejects the payload
- Payment not settled — x402 payment of $0.004 USDC not confirmed, call is rejected
- Rate limiting or cold-start latency on Vercel serverless — occasional timeouts
- Downstream product itself fails — router succeeds but product returns an error payload
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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