# Services from llmexpert.io on Zero

> llmexpert.io serves 2 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/llmexpert.io
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/llmexpert.io/health.json

## Services

- [llmexpert.io YouTube Transcription](https://www.zero.xyz/c/llmexpert-io-youtube-transcription-dd7823b1/llms.txt): $0.4/call via x402. Transcribes a YouTube video into text, billing for approximately 4 minutes of audio per call
- [llmexpert.io Collection Query](https://www.zero.xyz/c/llmexpert-io-collection-query-206c22e4/llms.txt): $0.05/call via x402. Query a specific vector collection by ID to perform semantic search or retrieval against stored LLM-indexed documents

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)