# Services from transcript.melchiorlabs.com on Zero

> transcript.melchiorlabs.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/transcript.melchiorlabs.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/transcript.melchiorlabs.com/health.json

## Services

- [YouTube Transcript Lexical Search — Melchior Labs](https://www.zero.xyz/c/youtube-transcript-lexical-search-melchior-labs-8f14a314/llms.txt): $0.005/call via x402. Searches a YouTube video's transcript for passages matching a query, returning ranked text snippets with timestamp citations.
- [YouTube Transcript API — Melchior Labs](https://www.zero.xyz/c/youtube-transcript-api-melchior-labs-19e81217/llms.txt): $0.01/call via x402. Fetches structured transcripts from public YouTube videos, returning full text, timestamped chunks, and citation URLs, billed per request via x402.
- [YouTube Transcript Context Chunker — Melchior Labs](https://www.zero.xyz/c/youtube-transcript-context-chunker-melchior-labs-042c3513/llms.txt): $0.003/call via x402. Accepts a raw YouTube transcript (text, VTT, or SRT) and returns structured, timestamped chunks with citation labels suitable for RAG, passage search, or agent context injection.

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)