Postfleet is a Model Context Protocol (MCP) server: Give an AI agent its own email address: send, reply, read, and wait for mail. Because it speaks the Model Context Protocol, AI assistants can use Postfleet as a set of callable tools instead of you copy-pasting between apps.
You can run Postfleet two ways: connect to the hosted endpoint at https://api.postfleet.ai/api/mcp with no local install, or run it on your own machine via the npm package @postfleet/mcp. Configuration happens through environment variables — you'll need POSTFLEET_API_KEY. The current release is v0.1.3, published under the MIT license, with source at Thestral12/postfleet-mcp on GitHub.
On mcp.site, Postfleet sits in the AI & Agents category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain Postfleet for postfleet.ai, claim this listing to verify ownership, earn the Verified badge, and keep the details current.