{"uid":"cap_Z5EKuKkZ9DsXGcTL38Hnl","slug":"word-of-the-day-english-spanish-date-deterministic-b99feb5a","name":"Word of the Day (English/Spanish, Date-Deterministic)","description":"60 paid endpoints with no metering, no API key and no account. Each endpoint has one flat price per call, whatever the size of the request: LLM completions with automatic failover across several large models, read-only EVM tooling over Base, Ethereum, Polygon, Arbitrum and Optimism, and pure crypto utilities that touch no network.","url":"https://flat-rate-llm.kikoribera03.workers.dev/v1/content/word-of-the-day","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"date":{"type":"string","description":"YYYY-MM-DD in UTC. Defaults to today, and any past date is reproducible."},"language":{"type":"string","description":"en | es. Defaults to en."}}},"responseSchema":{"type":"object","properties":{"date":{"type":"string"},"word":{"type":"string"},"example":{"type":"string"},"language":{"type":"string"},"definition":{"type":"string"},"partOfSpeech":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0025","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":"$0.0025/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_EAnW-vHPqhFQQsZCXq6Sq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0025","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the word of the day — its definition, part of speech, and example sentence — in English or Spanish, chosen deterministically from the UTC date so the same word is returned for any given day worldwide.","exampleAgentPrompt":"What's today's word of the day in English — give me the definition, part of speech, and an example sentence?","exampleUseCases":[{"title":"Daily vocabulary learning assistant","prompt":"Send me today's word of the day in English with its definition, part of speech, and an example sentence so I can expand my vocabulary."},{"title":"Reproducing a past word of the day","prompt":"What was the word of the day on March 15, 2024 in Spanish? I want the definition and an example sentence."},{"title":"Multilingual daily word widget","prompt":"Fetch today's word of the day in Spanish — I need the word, its part of speech, definition, and an example sentence to display on my app's home screen."}],"resultDescription":"Returns the word of the day as a structured object containing: the word itself, its definition, part of speech (e.g. noun, verb, adjective), and an example sentence illustrating its use — all in either English or Spanish depending on the requested language. The word is chosen deterministically from the UTC date, so any past date can be reproduced exactly.","failureModes":["Invalid or malformed date parameter returns an error","Unsupported language code returns an error","Network timeout or Cloudflare Worker failure returns a 5xx response","Payment not included or insufficient USDC amount results in a 402 Payment Required response"],"whenToPreferThis":"Choose this endpoint when you need a consistent, reproducible word of the day that is the same for all users on a given UTC date — not a random word masquerading as a daily word. Ideal for vocabulary apps, educational bots, daily newsletters, or any use case requiring auditability of past words. Supports both English and Spanish. Prefer over generic random-word APIs when reproducibility and date-determinism matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:46:35.078Z","isFirstParty":false}