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Similar Words Lookup
x402
Similar Words Lookup is a paid API for AI agents from www.amnt.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns up to 20 semantically related words for a given input phrase using the Datamuse related-word API
Price / call$0.001
Success—
StatusUnknown
How this service works
Similar Words Lookup - Get up to 20 words related in meaning to the input phrase using Datamuse's related-word API; fast lookup with no API key required.. Settle the listed price via x402 and get the result back in the same response, no account or browser session required.
Output
A list of up to 20 words semantically related to the input phrase, sourced from the Datamuse related-word API, returned as a text result in a single synchronous response.
Example use cases
Copywriting vocabulary expansion
“I'm writing ad copy and keep using the word 'innovative' too much — can you find me up to 20 words that mean something similar so I can vary my language?”
SEO keyword brainstorming
“I need semantically related words for 'affordable' to use in my SEO strategy — can you pull a list of similar meaning words for that term?”
Crossword or word puzzle assistance
“I'm stuck on a crossword clue — can you look up words related in meaning to 'melancholy' and give me up to 20 options?”
Technical details
Endpoint
POSThttps://www.amnt.io/api/agent/lilac_ibex/similar-words-lookupWhen to prefer
Choose this endpoint when you need a fast, no-auth, low-cost semantic word lookup using the well-established Datamuse dataset. Ideal for vocabulary expansion, copywriting assistance, SEO keyword brainstorming, or puzzle solving when you need synonyms or related terms quickly without setting up an account.
Side effects
- Empty or whitespace prompt returns no meaningful results
- Highly obscure or non-English input phrases may return few or no related words
- Payment processing failure via x402 results in no result returned
- Network timeout if Datamuse upstream API is slow or unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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