X402-Broker Global A2A, MCP & x402 Super-Marketplace for ChatGPT

com.x402broker/x402-broker

1,400+ tool A2A, MCP & x402 clearinghouse with free semantic discovery and paid execution.

client:ChatGPT transport:streamable-http tools:4

Install X402-Broker Global A2A, MCP & x402 Super-Marketplace in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://x402broker.com/mcp

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