# Palindrome Check — REST API endpoint `palindrome-check`

Check if a string reads the same forwards and backwards. Strict mode compares the raw string; relaxed (default) lowercases and strips non-alphanumeric characters first.

- Category: text
- MCP server: https://mcp.findutils.com/ (Streamable HTTP, no API keys, 120 req/min per IP)
- REST endpoint: POST https://api.findutils.com/api/tools/palindrome-check/execute (no API keys, 60 req/min per IP)
- Reference page: https://findutils.com/api/palindrome-check/
- Same tool on the other surface: https://findutils.com/mcp/palindrome-check/

## Call the endpoint (verified example)

```bash
curl -X POST https://api.findutils.com/api/tools/palindrome-check/execute \
  -H "Content-Type: application/json" \
  -d '{
    "text": "racecar"
  }'

# Parameter schema
curl https://api.findutils.com/api/tools/palindrome-check
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `text` | string | yes | Text to check. |
| `mode` | string (strict \| relaxed) | no | Comparison mode. Default: relaxed. |

Example arguments (verified):

```json
{
  "text": "racecar"
}
```

OpenAPI 3.1 spec: https://findutils.com/api/openapi.json · Interactive docs: https://findutils.com/api/docs/

## Also an MCP tool

```bash
claude mcp add findutils --transport http https://mcp.findutils.com/
```

Then ask the client to call `findutils:palindrome_check`. Full MCP reference: https://findutils.com/mcp/palindrome-check/

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Full catalog: GET https://api.findutils.com/api/tools · https://findutils.com/api/ · https://findutils.com/llms.txt