AgentStack (agentstack.tech) for ChatGPT

io.github.agentstacktech/agentstack

Backend for AI agents: one batched tool over ~668 actions (hosting, storage, auth, payments).

client:ChatGPT transport:streamable-http tools:1

Install AgentStack (agentstack.tech) in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://agentstack.tech/mcp

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