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Word of the Day (English/Spanish, Date-Deterministic)
x402
Word of the Day (English/Spanish, Date-Deterministic) is a paid API for AI agents from flat-rate-llm.kikoribera03.workers.dev, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-14).
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.
Price / call$0.0025
Success—
StatusUnknown
How this service works
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.
Output
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.
Example use cases
Daily vocabulary learning assistant
“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.”
Reproducing a past word of the day
“What was the word of the day on March 15, 2024 in Spanish? I want the definition and an example sentence.”
Multilingual daily word widget
“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.”
Technical details
Endpoint
POSThttps://flat-rate-llm.kikoribera03.workers.dev/v1/content/word-of-the-dayWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| date | string | YYYY-MM-DD in UTC. Defaults to today, and any past date is reproducible. |
| language | string | en | es. Defaults to en. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| date | string | |
| word | string | |
| example | string | |
| language | string | |
| definition | string | |
| partOfSpeech | string |
Tags
x402
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