Emailnator vs EmptyInbox

Emailnator generates disposable Gmail addresses for signups, downloads, and testing. Its homepage creates an @gmail.com address without an account or signup, with Domain, +Gmail, and Gmail dot formats available. The bulk generator creates up to 100 addresses at once. Through its API, developers, QA engineers, and automation scripts can generate single or bulk addresses, list and view inbox messages, and delete messages. Free-tier inboxes are public, so anyone who knows the exact address can read them, and messages are permanently deleted after 24 hours. The free service generates Gmail addresses and Gmail dot or plus variations, not other email domains. A separate 10 Minute Mail page creates an address on a dedicated domain that renews when its timer expires. The free tier costs nothing.

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.