Chain Check (x402) for ChatGPT

app.netlify.chaincheck-api/chaincheck

x402-paid on-chain tools: wallet report, contract scan, token risk, gas, address labels (USDC/Base)

client:ChatGPT transport:streamable-http tools:6

Install Chain Check (x402) in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://chaincheck-api.netlify.app/mcp

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