Palindrome Check API

POST https://api.findutils.com/api/tools/palindrome-check/execute

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.

Try it

Request body

application/json

text

string required

Text to check.
mode

string optional

Comparison mode. Default: relaxed. One of strict · relaxed.

Example arguments

Verified

{
  "text": "racecar"
}

Bookmarks Diff Compare two Netscape bookmarks.html exports (before and after) and list the links that were added, removed, or changed.
Case Convert Convert a string between camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE, Title Case, Sentence case, lower, UPPER.
Citation Generator Generate a reference-list citation in APA 7, MLA 9, Chicago, or Harvard style for a book, website, journal, or article.
Code Diff Checker Returns a line-by-line diff of two code snippets: each line marked added, removed or unchanged with its original and modified line numbers…
Code Highlight Html Returns syntax-highlighted HTML for a code snippet: HTML-escaped text wrapped in <span style="color: ..."> elements using one of six colour…
Dedupe Bookmarks Remove duplicate links from a Netscape bookmarks.html export (Chrome, Firefox, Edge, Safari) and return a clean bookmarks.html plus a CSV…

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

const response = await fetch('https://api.findutils.com/api/tools/palindrome-check/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"text":"racecar"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/palindrome-check/execute",
    json={"text":"racecar"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/palindrome-check/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"text":"racecar"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call palindrome_check from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: palindrome-check
MCP name: palindrome_check
Category: Text
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

More Text tools

More to explore