A2A Gateway — Base Token Guard & x402 Settlement for ChatGPT

trade.musefish.a2a/a2a-gateway

Free signup, 2 points, one command. Base token risk checks, route simulation, x402-paid.

client:ChatGPT transport:streamable-http

Install A2A Gateway — Base Token Guard & x402 Settlement in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://a2a.musefish.trade/mcp

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