FX Reference Rates for ChatGPT

dev.workers.regnotes.fx-reference-rates/fx-reference-rates

ECB FX rates, cloud GPU and LLM API prices, World Bank country macro data; pay per call via x402

client:ChatGPT transport:streamable-http tools:4

Install FX Reference Rates in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://fx-reference-rates.regnotes.workers.dev/mcp

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