Poseidon for ChatGPT
app.askposeidon/poseidon
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client:ChatGPT
transport:streamable-http
tools:14
Install Poseidon in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://api.askposeidon.app/mcpCustom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs