x402lint for ChatGPT

io.github.something-agent/x402lint

Free x402 endpoint linter: unpaid 402 challenge, payTo/asset/amount, CORS, directory readiness.

client:ChatGPT transport:streamable-http tools:3

Install x402lint in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://x402lint.something-agent.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