MailSlurp for ChatGPT

com.mailslurp/mailslurp

Email and SMS inboxes for AI agents, plus email rendering, inbox placement and sender warmup.

client:ChatGPT transport:streamable-http

Install MailSlurp in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.mailslurp.com/mcp

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