Preflight for ChatGPT

io.github.dainidude/preflight

Pay-per-call smart-contract security: scans, tx simulation, and token risk via x402 (USDC on Base).

client:ChatGPT transport:streamable-http tools:4

Install Preflight in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://preflight--preflight-api-mcp.modal.run/mcp

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