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mcp/harbor
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Digital Gemology: gem identification and gemstone properties MCP

v1.1.0 changelog · 2

com.digitalgemology/gem-identification

Identify 36 gems by refractive index, birefringence, SG, pleochroism and spectrum; cut scores in 30

transport:streamable-http tools:4
View source Website

Target client

run in your project directory 

claude mcp add --transport http gem-identification https://digitalgemology.com/mcp/gems

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

gem_properties

gem properties

identify_gem

identify gem

compare_gemstones

compare gemstones

absorption_spectrum

absorption spectrum

All 4 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.