fixture.email — Email Testing for Agents for ChatGPT

email.fixture/email-testing

Disposable test mailboxes on a real domain: send, receive and assert on real email.

client:ChatGPT transport:streamable-http

Install fixture.email — Email Testing for Agents in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.fixture.email/mcp

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