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Wiktionary Dictionary Entry Checker
x402
Wiktionary Dictionary Entry Checker is a paid API for AI agents from dictionary-wiktionary.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).
Checks if a spelling is a valid English dictionary entry on Wiktionary, returning parts of speech, inflection flags, and proper noun status.
Price / call$0.02
Success—
StatusUnknown
How this service works
Is a spelling an English dictionary entry on Wiktionary? Returns parts of speech and flags for inflections and proper nouns.
Output
Returns a verdict on whether the spelling is an English Wiktionary entry, along with the word queried, list of parts of speech, boolean flags for isEnglishWord, properNounOnly, inflectedOrAlternativeFormOnly, and alsoInOtherLanguages, a sense count, a short summary, source URL, data freshness timestamp, and any degradation or disclaimer notices.
Example use cases
Word game validity checker
“Is 'mice' a valid English word in Wiktionary? I need to know if it's just an inflected form of another word or a standalone entry, and what parts of speech it has.”
Filtering gibberish from user input
“Can you check if 'qzxqzx' exists as an English dictionary entry on Wiktionary? I want to know whether it's a real word or just random characters.”
Proper noun detection for NLP pipeline
“Check whether 'Paris' is in Wiktionary as an English word — specifically, is it listed as a proper noun only, or does it have common noun senses too?”
Technical details
Endpoint
GEThttps://dictionary-wiktionary.x402tookit.com/word-exists?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, authoritative check of whether a spelling is a legitimate English dictionary entry, especially when you also need metadata like parts of speech, proper noun status, or inflection flags. It is backed by Wiktionary, making it ideal for word games, spell checkers, NLP pipelines, and content moderation tools that need lexical validation without requiring full definition text.
Side effects
- Word not found in Wiktionary returns isEnglishWord=false with an empty partsOfSpeech array
- Non-English words may appear in Wiktionary but flagged via alsoInOtherLanguages without English senses
- Inflected forms (e.g. 'ran') may return inflectedOrAlternativeFormOnly=true pointing to base form
- Degraded response if Wiktionary source is temporarily unavailable, indicated by degraded=true flag
- Gibberish strings return verdict of not found with reasons array explaining absence
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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