ChatGPT

Heystack for ChatGPT

com.heystacks/heystack

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client:ChatGPT transport:streamable-http tools:19

Install Heystack in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://heystacks.com/mcp

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

What ChatGPT can do once it is connected

Heystack in other clients

Heystack MCP server