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ChatGPT

Penny Engine — Agent Operations for ChatGPT

io.github.kasheik3/penny-engine

Remote MCP utilities for agents: structured data, commerce checks, and x402 paid API discovery.

client:ChatGPT transport:streamable-http tools:16

Install Penny Engine — Agent Operations in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://penny-agent-api-production.up.railway.app/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

Penny Engine — Agent Operations in other clients