ECB FX Reference Rates for ChatGPT

io.github.pcp183/ecb-fx

Official ECB euro reference FX rates (since 1999), cross rates and conversion. Paid via x402.

client:ChatGPT transport:streamable-http tools:1

Install ECB FX Reference Rates in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://ecb-fx-production.up.railway.app/mcp

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