Digital Gemology: gem identification and gemstone properties for ChatGPT
com.digitalgemology/gem-identification
Identify 36 gems by refractive index, birefringence, SG, pleochroism and spectrum; cut scores in 30
client:ChatGPT
transport:streamable-http
tools:4
Install Digital Gemology: gem identification and gemstone properties in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://digitalgemology.com/mcp/gems
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs