lastseen score for ChatGPT

dev.lastseen/score

Trust scores and dated liveness/drift facts for MCP servers, from the lastseen.dev register.

client:ChatGPT transport:streamable-http tools:3

Install lastseen score in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://score.lastseen.dev/mcp

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