Agent Checkout for ChatGPT

com.agentcheckoutapi/agent-checkout

AI shopping gateway for product search, inventory, carts, and merchant-hosted checkout.

client:ChatGPT transport:streamable-http tools:8

Install Agent Checkout in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://agentcheckoutapi.com/mcp

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