API Ninjas for ChatGPT

com.api-ninjas/mcp

140+ data APIs for agents: finance, banking validation, geo, weather, text. One API key.

client:ChatGPT transport:streamable-http

Install API Ninjas in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.api-ninjas.com/mcp

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