Horizon Pulse for ChatGPT

io.github.horizon-pulse/horizon-pulse

Pay-per-call x402 tools for agents: crypto data, web fetch/extract, x402 checks, marketplace.

client:ChatGPT transport:streamable-http tools:17

Install Horizon Pulse in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://horizonpulse.dev/mcp

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