# PennyRail Router Execute Premium

> PennyRail Router Execute Premium is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-31).

Routes a natural-language task or explicit product ID to a matching PennyRail product and executes it, returning the settlement result

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/router/execute/premium?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-router-execute-premium-ea8908b1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B7B-F-Xz2vnXpzWHOmoWM

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability pennyrail-router-execute-premium-ea8908b1 -d '<json body>'
```

Example prompt: Use PennyRail's premium router to translate the following text to Spanish: 'Hello, how are you today?' — let it figure out the right product and run it.

## When to prefer this

Choose this endpoint when you already know you want PennyRail to execute a task and either have a specific productId from a prior find/quote call or want the router to automatically match a natural-language intent to the best available PennyRail product. It is the execution step in a PennyRail workflow, not the discovery step.

## Known failure modes

- No matching product found for the given intent — returns an error or empty result
- Invalid or unknown productId causes routing failure
- Input string incompatible with resolved product schema
- Payment authorization failure due to insufficient USDC balance
- Upstream PennyRail product timeout or unavailability
- Malformed request body missing required fields

## How this service works

Machine-readable settlement service

## Output

An open-ended JSON object whose shape depends on the resolved PennyRail product; may contain text results, structured data, status flags, or other product-specific output fields.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "Input passed to the resolved PennyRail product."
  },
  "intent": {
   "type": "string",
   "description": "Natural-language task. Omit when productId is supplied."
  },
  "productId": {
   "type": "string",
   "description": "Optional exact PennyRail product id returned by find/quote."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-router-execute-premium-ea8908b1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pennyrail.vercel.app](https://www.zero.xyz/host/pennyrail.vercel.app/llms.txt)