Fretwork Guitar Tools for ChatGPT

com.guitarfretwork/fretwork

Guitar chords from frets, chord shapes, transposing, capo, scales, song keys and practice plans.

client:ChatGPT transport:streamable-http tools:9

Install Fretwork Guitar Tools in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.guitarfretwork.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs