# Services from dictionary.openverbs.com on Zero

> dictionary.openverbs.com serves 3 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/dictionary.openverbs.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/dictionary.openverbs.com/health.json

## Services

- [OpenVerbs Dictionary – Word Definition Lookup](https://www.zero.xyz/c/openverbs-dictionary-word-definition-lookup-81a2fc59/llms.txt): $0.002/call via x402. Returns definitions, part of speech, example sentences, and synonyms for an English word, with optional filtering by part of speech.
- [OpenVerbs Dictionary Synonyms API](https://www.zero.xyz/c/openverbs-dictionary-synonyms-api-48ab4f53/llms.txt): $0.002/call via x402. Returns synonyms of an English word aggregated across all its senses, with optional part-of-speech filtering
- [OpenVerbs Dictionary Antonyms](https://www.zero.xyz/c/openverbs-dictionary-antonyms-a2697589/llms.txt): $0.002/call via x402. Returns antonyms (opposites) of an English word across all its senses, with optional part-of-speech filtering

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)