{"uid":"cap_TJakT_smR6WauF_S3o4RI","slug":"saylor-innovations-date-add-calculator-86d352cd","name":"Saylor Innovations Date Add Calculator","description":"Add days or business days to a date - calendar or weekday offset from a start date, returns the resulting date and weekday","url":"https://saylorinnovations.com/api/calc/date-add?utm_source=zero.xyz","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":["from"],"properties":{"from":{"type":"string","description":"Start date YYYY-MM-DD"},"business_days":{"type":"string","description":"optional weekdays to add (negative to subtract)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["from","result"],"properties":{"days":{"type":"number","description":"Number of days"},"from":{"type":"string","description":"Start of the range"},"note":{"type":["string","null"],"description":"Caveat or context for reading the result"},"result":{"type":"string","description":"Result of the operation"},"checked_at":{"type":["string","null"],"description":"Time the check was run (UTC)"},"business_days":{"type":"number","description":"Number of business days"},"result_weekday":{"type":"string","description":"Result weekday"}}}}}}},"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_SjlQn-_tqId6JHBaSe9By","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":"Adds calendar days or business days to a start date and returns the resulting date and weekday name","exampleAgentPrompt":"What date is 10 business days from 2025-06-01, and what day of the week will it land on?","exampleUseCases":[{"title":"Project deadline calculation","prompt":"Our project kicks off on 2025-07-14 — what's the exact date 20 business days later, and what day of the week is it?"},{"title":"Contract net-30 due date","prompt":"If an invoice is dated 2025-08-01, what calendar date is exactly 30 days later and what weekday does it fall on?"},{"title":"Regulatory filing countdown","prompt":"I need to file a response 15 business days after receiving notice on 2025-09-10 — what date does that work out to?"}],"resultDescription":"A JSON object containing the original start date, the computed result date (YYYY-MM-DD), the result weekday name, the number of calendar days added, the number of business days added, an optional note with caveats, and the UTC timestamp when the check was run.","failureModes":["Missing required 'from' query parameter returns an error","Invalid date format (not YYYY-MM-DD) may return a parsing error","Non-numeric or malformed days/business_days values cause request failure","Extremely large offsets may produce unexpected or out-of-range dates","Network or payment (x402) failure prevents response"],"whenToPreferThis":"Choose this endpoint when you need a quick, reliable date offset calculation — either calendar days or business/weekday days — and want the result weekday returned in the same call. It is ideal for scheduling, deadline computation, and SLA calculations where weekend-skipping matters. Prefer it over manual date math or general-purpose date libraries when you need a hosted, pay-per-use API with no setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T19:08:18.938Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-date-add-calculator-86d352cd"}