# PennyRail Nano Chain Info

> PennyRail Nano Chain Info is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).

Retrieves machine-readable network metadata for a nano/blockchain chain via a paid settlement endpoint

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/nano/chain.info--network-metadata?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-nano-chain-info-1de9800d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_avm_ltFf49MOZcMV8hXhH

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-nano-chain-info-1de9800d -d '<json body>'
```

Example prompt: Can you fetch the current network metadata for the nano chain using PennyRail?

## When to prefer this

Choose this endpoint when you need machine-readable nano chain network metadata as part of a settlement or payment workflow, particularly in x402-compatible agent pipelines. It is well-suited for lightweight, per-call chain info lookups where cost per query ($0.001 USDC) is acceptable and you need structured network metadata rather than full blockchain indexing.

## Known failure modes

- Invalid or missing input string returns an error
- Payment failure (x402) if USDC balance is insufficient
- Network unavailability of the Vercel-hosted service
- Malformed input causing a 400 Bad Request
- Chain data temporarily unavailable due to upstream nano network issues

## How this service works

Machine-readable settlement service

## Output

A JSON object containing machine-readable network metadata for the nano chain, including chain configuration details, network status, and related blockchain parameters. The response schema is open-ended (additionalProperties: true), meaning the exact fields returned depend on the current chain state.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-nano-chain-info-1de9800d/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)