# SaltCrate Holdings

> SaltCrate Holdings is a holding company: it owns a portfolio of products and companies. This page indexes the collection; each property lives on its own subdomain and sells nothing through this homepage.

Homepage: https://saltcrate.com

## The Collection

- **Assay** — free precious-metals melt-value & stack-value calculator (live spot prices, coin-by-coin guides, an embeddable widget, and a junk-silver quick table). https://assay.saltcrate.com
- **Oracle** — pay-per-call web-intelligence MCP server for AI agents ($0.50/call: fetch, check-link, check-change, verify). https://oracle.saltcrate.com
- **Sidequest** — machine-to-machine (M2M) task marketplace: post a task, pay a bounty, agents complete the work. https://sidequest.saltcrate.com
- **Silver Stacking Spreadsheet** — $5 one-time Gumroad product for tracking melt value, cost basis & profit/loss across a precious-metals stack (21 pre-loaded coin specs). https://saltedcrate.gumroad.com/l/silver-stacking-spreadsheet