Billetto MCP Server and API by Cotlet for ChatGPT
dev.cotlet/billetto
Billetto event ticketing platform MCP server: list orders, refund tickets, resend ticket.
client:ChatGPT
transport:streamable-http
Install Billetto MCP Server and API by Cotlet in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://cotlet.dev/mcp/v1/billetto/connect
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs