{"uid":"cap_JrLJD8HCnIbabcNJzhjSk","slug":"agentshelf-date-string-validator-04c7f6da","name":"AgentShelf Date String Validator","description":"Call when an agent needs whether a string is a real YYYY-MM-DD date. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-date-date first.","url":"https://agentshelf.syntexa.ch/v1/check-date-date?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"data":{"description":"JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN."},"value":{"type":"string","examples":["2026-01-15"],"maxLength":20000,"minLength":1,"description":"Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar."},"schema":{"description":"JSON Schema document for schema-check SKUs. Omit it on string checks."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_BSBFn_GyIDVw4fKINJF4g","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates whether a given string is a real, well-formed YYYY-MM-DD date","exampleAgentPrompt":"Can you check whether the string '2024-02-29' is a real, valid YYYY-MM-DD date?","exampleUseCases":[{"title":"Form input date validation","prompt":"The user submitted '2023-11-31' as their birthdate — can you verify if that's actually a real calendar date in YYYY-MM-DD format?"},{"title":"Pipeline data quality gate","prompt":"Before I process this batch record, check if '2025-00-15' is a legitimate YYYY-MM-DD date or garbage data I should reject."},{"title":"Chatbot date parsing guard","prompt":"A user typed '2024-13-01' as their appointment date — is that a real date I can accept, or should I ask them to re-enter it?"}],"resultDescription":"Returns a validation result indicating whether the input string represents a real, correctly formatted YYYY-MM-DD calendar date, including checks for valid months, days, and leap years.","failureModes":["Empty or missing value field returns an error","String longer than 20000 characters rejected by schema","Non-string input types may cause validation errors","Network or payment failure returns 402 or 5xx","Ambiguous date strings not in YYYY-MM-DD format may return false negatives"],"whenToPreferThis":"Use this endpoint when you need to confirm that a string both matches the YYYY-MM-DD format AND represents a real calendar date (e.g. correctly handles leap years, invalid month/day combos). The description notes a free sandbox alternative at POST /v1/sandbox/check-date-date should be tried first before incurring the $0.01 USDC charge. Prefer this paid endpoint only when the sandbox is unavailable or you need production reliability guarantees.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:20.465Z","isFirstParty":false,"canonicalSlug":"agentshelf-date-string-validator-04c7f6da"}