# Services from grist.tools on Zero

> grist.tools serves 7 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/grist.tools
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/grist.tools/health.json

## Services

- [grist.tools Audio Convert](https://www.zero.xyz/c/grist-tools-audio-convert-d5863d9b/llms.txt): $0.003/call via x402. Converts an audio or video file (by URL) to a target audio format such as MP3, WAV, FLAC, AAC, or Opus using ffmpeg, for $0.003 per call.
- [grist.tools Archive Extract File](https://www.zero.xyz/c/grist-tools-archive-extract-file-fb348201/llms.txt): $0.003/call via x402. Fetches a remote archive (ZIP, TAR, or gzipped TAR) and returns the raw bytes of a single named entry from within it
- [grist.tools CSV to JSON Converter](https://www.zero.xyz/c/grist-tools-csv-to-json-converter-61e1ccaf/llms.txt): $0.005/call via x402. Converts a CSV or TSV file (fetched from a URL) into a JSON array of objects or arrays, with configurable headers, delimiters, and row limits.
- [grist.tools Audio Extract](https://www.zero.xyz/c/grist-tools-audio-extract-5d6e2631/llms.txt): $0.003/call via x402. Extracts and converts audio from a remote video or audio file URL into a chosen audio format (MP3, WAV, FLAC, AAC, or Opus)
- [grist.tools Archive Inspect](https://www.zero.xyz/c/grist-tools-archive-inspect-e48c128d/llms.txt): $0.003/call via x402. Inspects a remote archive file (ZIP, TAR, or gzipped TAR) and returns a listing of its entries and metadata
- [Grist Tools Color Palette Extractor](https://www.zero.xyz/c/grist-tools-color-palette-extractor-d9e483c3/llms.txt): $0.003/call via x402. Extracts the dominant color palette from an image URL, returning the most common colors ranked by frequency.
- [grist.tools WHOIS Lookup](https://www.zero.xyz/c/grist-tools-whois-lookup-ef567be3/llms.txt): $0.002/call via x402. Performs a WHOIS lookup on a given fully qualified domain name and returns registration and ownership data from the relevant registry.

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)