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Palindrome Checker
x402
Palindrome Checker is a paid API for AI agents from x402-zoo.lolagent.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Checks whether a given text string is a palindrome after normalizing case, punctuation, and whitespace.
Price / call$0.001
Success—
StatusUnknown
How this service works
Check whether text is a palindrome after case, punctuation and whitespace normalization.
Output
Returns a boolean or structured result indicating whether the input text is a palindrome, evaluated after normalizing case, removing punctuation, and stripping whitespace.
Example use cases
Word puzzle palindrome check
“Is 'racecar' a palindrome?”
Phrase palindrome with punctuation
“Can you tell me if the phrase 'Was it a car or a cat I saw?' is a palindrome, ignoring spaces and punctuation?”
User-submitted text validation
“A user on my app just submitted 'Never odd or even' as a palindrome entry — can you verify if that's actually correct?”
Technical details
Endpoint
GEThttps://x402-zoo.lolagent.workers.dev/api/palindromeWhen to prefer
Use this endpoint when you need a reliable, normalized palindrome check that handles real-world text (mixed case, punctuation, spaces) rather than implementing your own string-reversal logic. Ideal for educational tools, word games, content validation, or any agent that needs to verify palindromes on demand without writing custom normalization code.
Side effects
- Missing 'text' query parameter returns an error
- Empty string input may return trivially true or an error
- Very long strings may time out or be truncated
- Non-UTF-8 or special character inputs may produce unexpected normalization results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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