micro data api factory for ChatGPT

io.github.matsushitatokitsugu/micro-data-api-factory

17+ Japan MCP tools (weather/calendar v2/local-pack/enrich). x402 on Base, wallet-free trial.

client:ChatGPT transport:streamable-http

Install micro data api factory in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp-data-gateway.kasanegi123.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