Eldertongue for ChatGPT

io.github.gowinder/eldertongue

Old English dictionary over MCP: headwords, inflection tables, form ID, Beowulf citations.

client:ChatGPT transport:streamable-http tools:5

Install Eldertongue in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://eldertongue.com/mcp

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