exchangerate.dev for ChatGPT
dev.exchangerate/mcp
Free, source-labeled FX rates: 465 pairs across 31 currencies, majors update ~60s intraday.
client:ChatGPT
transport:streamable-http
tools:7
Install exchangerate.dev in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://api.exchangerate.dev/v1/mcp/Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs