{"uid":"cap_S9ft_ayig0G6Cgi4MZtEG","slug":"palindrome-checker-b7a98425","name":"Palindrome Checker","description":"Check whether text is a palindrome after case, punctuation and whitespace normalization.","url":"https://x402-zoo.lolagent.workers.dev/api/palindrome","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["text"],"properties":{"text":{"type":"string"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ORujfXBZtiKXtpUaxg30t","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a given text string is a palindrome after normalizing case, punctuation, and whitespace.","exampleAgentPrompt":"Is 'A man, a plan, a canal: Panama!' a palindrome? Check it ignoring case and punctuation.","exampleUseCases":[{"title":"Word puzzle palindrome check","prompt":"Is 'racecar' a palindrome?"},{"title":"Phrase palindrome with punctuation","prompt":"Can you tell me if the phrase 'Was it a car or a cat I saw?' is a palindrome, ignoring spaces and punctuation?"},{"title":"User-submitted text validation","prompt":"A user on my app just submitted 'Never odd or even' as a palindrome entry — can you verify if that's actually correct?"}],"resultDescription":"Returns a boolean or structured result indicating whether the input text is a palindrome, evaluated after normalizing case, removing punctuation, and stripping whitespace.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:02:35.045Z","isFirstParty":false}