# Delx ROT13

> Delx ROT13 is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-20).

ROT13 encode or decode Latin text using a paid API endpoint

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/rot13?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-rot13-176ae5e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gtXNSi14dYlVt_WLIT8xI

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 delx-rot13-176ae5e6 -d '<json body>'
```

Example prompt: Can you ROT13 encode this message for me: 'Hello, this is a secret note'?

## When to prefer this

Use this endpoint when you need a reliable, API-accessible ROT13 transformation without implementing the cipher locally. Ideal for agents operating in environments without code execution, or when ROT13 is a required step in a larger workflow that already uses the Delx API ecosystem. The $0.001 USDC per-call pricing makes it cost-effective for occasional transformations.

## Known failure modes

- Non-Latin or non-ASCII characters may be passed through unchanged or cause errors
- Empty input string may return an error or empty result
- Overly long text may hit payload size limits
- Payment failure ($0.001 USDC) will block the request with a 402 response

## How this service works

Apply reversible ROT13 to Latin letters while preserving numbers, punctuation, spacing, and letter case for $0.001 USDC. Use it for deterministic fixture decoding, obfuscation compatibility, or legacy text workflows up to 100,000 characters. The first-party transform runs locally with no network call, storage, key, or retention.

## Output

Returns the ROT13-transformed version of the input text, either encoding plain Latin text into ROT13 or decoding existing ROT13 text back to plain text, applying the Caesar-13 substitution cipher symmetrically.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 100000
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "length": 14,
  "result": "Ntrag jbexsybj",
  "schema": "delx/rot13/v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-rot13-176ae5e6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)