x402 Merchant Check for ChatGPT

com.gradientdecisions/merchant-check

Pre-payment merchant trust checks for x402 agents on Base and Solana.

client:ChatGPT transport:streamable-http tools:1

Install x402 Merchant Check in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.gradientdecisions.com/mcp

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