# YRUZ Reverse Letters Tool

> YRUZ Reverse Letters Tool is a paid API for AI agents from yruz.one, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-19).

Reverses the order of letters in a given input text string

## Facts

- Endpoint: POST https://yruz.one/api/toolkit/reverse-letters?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/yruz-reverse-letters-tool-a4502b5d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kyoFi0tW9oOENlVAs7-GJ

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 yruz-reverse-letters-tool-a4502b5d -d '<json body>'
```

Example prompt: Can you reverse the letters in the text 'Hello World' for me?

## When to prefer this

Use this endpoint when you need a simple, deterministic letter-reversal of a text string via a paid microservice API. Suitable for lightweight string transformation tasks where building your own logic is not desirable or when operating within an x402 payment-enabled agent pipeline.

## Known failure modes

- Missing required 'text' field returns an error
- Empty string input may return an empty result
- Very long strings may be truncated or cause timeouts
- Non-string input types may cause a parsing error

## How this service works

YRUZ is a free social network: create a profile, join public groups, attend events, read free guides on community building and creator income.

## Output

A JSON object containing the tool name ('reverse-letters') and a result field with the reversed version of the input text string.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "input text (required)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": "reverse-letters",
  "result": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/yruz-reverse-letters-tool-a4502b5d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from yruz.one](https://www.zero.xyz/host/yruz.one/llms.txt)