OFAC Wallet Screen, DNS & Email Auth (x402) for ChatGPT

dev.workers.sdnscreen.sdn-screen-x402/agent-preflight

Pay-per-call ($0.01 USDC, Base, x402): OFAC SDN wallet screen, DNS lookup, SPF/DMARC/DKIM check.

client:ChatGPT transport:streamable-http tools:3

Install OFAC Wallet Screen, DNS & Email Auth (x402) in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://sdn-screen-x402.sdnscreen.workers.dev/mcp

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