# YRUZ Palindrome Checker

> YRUZ Palindrome Checker 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).

Checks whether a given text string is a palindrome and returns the result

## Facts

- Endpoint: POST https://yruz.one/api/toolkit/palindrome-checker?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-palindrome-checker-6d4ddc17
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v4r3VH5pb2VDVNeQ_NUXA

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-palindrome-checker-6d4ddc17 -d '<json body>'
```

Example prompt: Can you check if the word 'racecar' is a palindrome?

## When to prefer this

Use this endpoint when you need a quick, programmatic check of whether a given string is a palindrome, particularly in text games, educational tools, coding challenges, or content validation pipelines. It is a simple, cheap ($0.002 USDC) single-call validation with no side effects.

## Known failure modes

- Missing 'text' field in request body returns an error
- Empty string input may return an ambiguous or error result
- Very long strings may cause unexpected behavior
- Non-string input types may fail schema validation

## 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 ('palindrome-checker') and a result object indicating whether the input text is a palindrome, likely with a boolean true/false value and possibly the normalized input.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": "palindrome-checker",
  "result": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/yruz-palindrome-checker-6d4ddc17/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)