# PennyRail Base58 Decode

> PennyRail Base58 Decode is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Decodes a Base58-encoded string into its original binary or text representation

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/nano/encoding.base58--base58-decode
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-base58-decode-038dec0f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xWg3pcG7fI1a4OIc-OpUG

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-base58-decode-038dec0f -d '<json body>'
```

Example prompt: Can you decode this Base58-encoded string for me: '3mJr7AoUXx2Wqd' — I need the original data back from it.

## When to prefer this

Use this endpoint when you need a quick, pay-per-use Base58 decode operation without setting up a local library, particularly in serverless or agent workflows that already use x402 micropayment rails. Best for one-off decoding of Base58 strings in blockchain, cryptography, or data pipeline contexts where spinning up a full encoding library is impractical.

## Known failure modes

- Invalid Base58 characters in input (characters not in Base58 alphabet like 0, O, I, l) return a decoding error
- Empty or missing input field returns a validation error
- Malformed input object structure returns a schema error
- Checksum mismatch for Base58Check encoded strings may return an integrity error
- Payment failure or insufficient USDC balance prevents the call from executing

## How this service works

Machine-readable settlement service

## Output

Returns the decoded representation of the provided Base58-encoded input, typically as raw bytes, hex string, or UTF-8 text depending on the original encoded content. The response object contains the decoded output data.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-base58-decode-038dec0f/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)