# RhymeBrain Rhymes Lookup

> RhymeBrain Rhymes Lookup is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns ranked rhyming words for a given input word, including frequency scores and syllable counts.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/rhymebrain-rhymes
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rhymebrain-rhymes-lookup-43c8c79b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y7_S_myo9L-uSEBA_RQ6D

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability rhymebrain-rhymes-lookup-43c8c79b -d '<json body>'
```

Example prompt: What words rhyme with 'orange'? Give me a ranked list with syllable counts.

## When to prefer this

Use this endpoint when you need rhyming words for a specific input word and want them ranked by frequency with syllable counts — ideal for poetry generation, songwriting assistance, or any NLP task requiring phonetic similarity data.

## Known failure modes

- Missing 'word' parameter returns an error or empty result
- No rhymes found for obscure or nonsense words returns empty array
- Non-English words may return no results or poor results
- Network timeout if upstream RhymeBrain service is slow

## How this service works

Ranked rhyming words for a given word with frequency and syllable counts (param: word). Query: ?word= Returns JSON.

## Output

A JSON array of rhyming words ranked by frequency, each entry containing the rhyming word, its frequency score, and its syllable count.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rhymebrain-rhymes-lookup-43c8c79b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)