PayperWork for ChatGPT

app.payperwork/payperwork

Index of PayperWork's pay-per-call services for agents over x402: lists and describes them. Free.

client:ChatGPT transport:streamable-http tools:2

Install PayperWork in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://payperwork.app/mcp

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