4 tagged email-testing, measured the same way as everything else here.
MCP server Claude CodeCodexCursor +2
Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients. Runs locally from the @emailens/mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor
Local multi-channel message emulator for E2E testing, with an MCP server for LLM agents. Runs locally from the mockpost Python package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor
Disposable email inboxes for AI agents — OTPs and magic links auto-extracted. No signup needed. Runs locally from the zerodrop-mcp npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor
MCP server that gives an AI agent real email inboxes: create, waitforotp, send and more, for Claude Desktop, Cursor and any MCP client. Runs locally from the mailflat-mcp Python package. Needs 2 environment variables to run.