# PennyRail Analyst Router

> PennyRail Analyst Router is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-15).

Routes a natural-language task or product ID to a PennyRail analyst product and executes it, returning machine-readable results

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/router/execute/analyst
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-analyst-router-a1db9fe8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ANanuN8XNbtMPDHQaLHEt

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-analyst-router-a1db9fe8 -d '<json body>'
```

Example prompt: Use PennyRail's analyst router to run this task: 'summarize the key risks in this company overview: Acme Corp sells widgets to SMBs with a high churn rate and thin margins' — route it automatically to the best analyst product.

## When to prefer this

Choose this endpoint when you need to route a natural-language analysis task to the appropriate PennyRail analyst product dynamically, or when you already have a specific PennyRail product ID and want to execute it directly. It is well-suited for agent workflows that need flexible, intent-driven task dispatch with machine-readable output and micropayment settlement via x402.

## Known failure modes

- Invalid or unknown productId returns an error or empty result
- Ambiguous intent may route to the wrong analyst product
- Missing required 'input' field causes processing failure
- Payment failure (x402) blocks execution if USDC balance is insufficient
- Timeout if the resolved analyst product takes too long to respond
- Malformed input string may produce unexpected or empty output

## How this service works

Machine-readable settlement service

## Output

A flexible, machine-readable JSON object whose structure depends on the resolved PennyRail analyst product. May include analysis output, scores, summaries, extracted data, or other structured results depending on the routed product.

## 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-analyst-router-a1db9fe8/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)