TokenOS Gas & Fee Tracker for ChatGPT

ai.tokenos/gas-tracker

Live fees on five chains

client:ChatGPT transport:streamable-http tools:3

Install TokenOS Gas & Fee Tracker in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://tokenos.ai/api/mcp/apps/gas-tracker

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