Prismism for ChatGPT

dev.prismism/mcp

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client:ChatGPT transport:streamable-http runtime:npm

Install Prismism in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://prismism.dev/mcp

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