MinuteMail

What MinuteMail is

MinuteMail is a developer platform for testing email and authentication flows through a web interface, REST API, Python SDK, or MCP server. It creates isolated test inboxes with configurable lifetimes from 1 to 60 minutes; inboxes default to 15 minutes if no duration is set. Real-time SSE delivery and message lifecycle tracking support email-flow checks, while its mock OAuth identity provider supports OAuth 2.0 authorization code flows with optional PKCE. Developers can use verified custom domains within plan limits and restrict API keys by operation and allowed mailbox domain. MinuteMail says it uses HTTPS/TLS in transit, database encryption at rest, hashed API keys, and row-level security for tenant isolation. Temporary inboxes and messages are permanently deleted on expiry; archived inboxes keep the address but not messages. The service advises using it for temporary, non-sensitive communications. A free plan is available with 50 API calls per day, two active mailboxes, four archived mailboxes, one mocked identity provider, and one custom domain. Paid plans start at $86/yr.

Who it suits

It suits developers testing email delivery or OAuth flows, including those who want API, SDK, or MCP access. Its stated use is temporary, non-sensitive communications.

Limits

The free plan includes 50 API calls per day, two active mailboxes, four archived mailboxes, one mocked identity provider and one custom domain. Paid plan capacities also have limits: Hobbyist lists 1,000 daily calls, 10 active mailboxes and two custom domains; Pro lists 10,000 daily calls, 50 active mailboxes and five custom domains; Team lists 60,000 shared daily calls, 300 shared active mailboxes, 20 custom domains and up to five team members.

Getting started

1. Visit the MinuteMail website.
2. Create a free account or choose a paid plan.
3. Use the web interface, REST API, official Python SDK or MCP server.
4. Set a mailbox lifetime from 1 to 60 minutes, or use the 15-minute default.
5. If using MCP, follow the documented setup for Claude Code, Claude Desktop or Cursor.

Verdict

MinuteMail combines short-lived test inboxes with OAuth testing and several developer access methods. The free plan has modest daily-call and mailbox limits, and paid plans start at $86/yr.