Periodic Table 2026 for ChatGPT

io.github.changzhiai/periodic-table

Interactive periodic table with all 118 elements. Properties, comparisons, and more.

client:ChatGPT transport:streamable-http tools:4

Install Periodic Table 2026 in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://theperiodictable.org/mcp

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