paidfor for ChatGPT

io.github.sarmadahsan/paidfor

Check an x402 seller before paying: verdict, failure rate and evidence from paid calls on Base.

client:ChatGPT transport:streamable-http runtime:npm tools:3

Install paidfor in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.paidfor.dev/mcp

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