EmptyInbox vs Spamgourmet

EmptyInbox provides disposable email inboxes for AI agents and developers through a REST API, an MCP server and a web inbox. A new address can be created for each task or agent run. Messages can be polled, or received through the MCP wait_for_message flow, which can extract verification codes. The web inbox uses passkey sign-in and displays extracted codes and links alongside messages. Each inbox creation uses one credit; receiving, listing and reading messages are free. Messages are deleted automatically after seven days. EmptyInbox receives email only and has no sending endpoint or SMTP credentials. Listed integrations include MCP-compatible agents, OpenAI GPT Actions, LangChain, CrewAI and OpenAPI-compatible frameworks; workflow guides cover Playwright, Cypress, n8n and LangChain. The free plan includes five inbox credits and REST API and MCP access. One-time top-ups start at 1.00 USD for 10 credits, payable by Bitcoin or USDT. The project is open source under the MIT license, and questions go through GitHub issues.

Spamgourmet is a free disposable-email service available on the web, with released code for self-hosting. It creates an alias automatically when the first message arrives, then forwards only a chosen number of messages to a protected address before discarding later mail. An address can allow up to 20 messages; the default is three when no number is supplied. Advanced mode provides trusted-sender controls, watchwords, prefixes, reply-address masking, and tools to view or edit addresses. Reply masking routes replies through Spamgourmet and keeps the protected return address hidden. The service filters only messages sent to disposable addresses, not mail sent directly to the protected address. Its privacy policy says messages are forwarded immediately or erased from volatile memory and that the code does not store email. Standard web and mail logs record IP addresses and may be reviewed for support or fraud investigations. The service is described as volunteer-run and non-commercial, with optional donations. Its Free plan costs nothing.