{"uid":"cap_itnAGOPTnf-vhiiqx124J","slug":"gocreative-pregnancy-due-date-calculator-1cfd5414","name":"GoCreative Pregnancy Due Date Calculator","description":"Keyless, pay-per-call compliance & regulated-data API for AI agents — OFAC wallet + sanctions/PEP + KYB screening, SEC filings, FRED economics, FDA recalls, federal awards, plus continuous monitoring. USDC on Base/Solana via x402, native MCP. No API key, no signup.","url":"https://api.gocreativeai.com/v1/calc/due-date/%7Barg%7D","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","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["input"],"properties":{"input":{"type":"string","description":"endpoint argument"}}}},"additionalProperties":false}}},"responseSchema":null,"example":{"request":{"arg":"2024-01-15","days":30},"response":{"lmp":"2024-01-15","as_of":"2026-06-17","source":"computed (Naegele's rule)","due_date":"2024-10-21","trimester":"third","gestational_age_days":2,"gestational_age_weeks":126}},"exampleRequest":{"arg":"2024-01-15","days":30},"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LuVhESZ7sKx2nkuJ0ZB5a","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the estimated pregnancy due date from a last menstrual period (LMP) date using Naegele's rule, returning trimester and gestational age details","exampleAgentPrompt":"My last menstrual period started on March 3, 2025 — can you calculate my pregnancy due date and tell me what trimester I'm in?","exampleUseCases":null,"resultDescription":"Returns the estimated due date, trimester (first/second/third), gestational age in days and weeks, the LMP date used, the as-of date, and the calculation method (Naegele's rule).","failureModes":["Invalid date format returns an error — must be YYYY-MM-DD","Missing required 'input' query parameter returns 400","Future LMP dates may return unexpected or invalid gestational ages","Dates far in the past may produce nonsensical trimester values"],"whenToPreferThis":"Use this endpoint when you need a quick, accurate pregnancy due date estimate based on the last menstrual period date using the standard Naegele's rule method. Prefer this over general health APIs when you specifically need gestational age breakdown and trimester classification with no signup or API key required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-09T01:02:42.008Z","isFirstParty":false}