Browse your inbox
Navigate splits, categories, and channels. See what needs your reply.
Connect any MCP-compatible AI assistant to Upstream and manage your email with natural language.
Browse your inbox
Navigate splits, categories, and channels. See what needs your reply.
Search and summarize
Full-text search across all threads. Get AI summaries instead of reading every message.
Reply and compose
Send replies, compose new threads, and generate AI draft replies tuned to your writing style.
Organize
Star, snooze, label, and archive. Create rules to automate your inbox.
Upstream exposes a Model Context Protocol server at https://api.upstream.do/mcp. Your AI assistant connects to it using a Personal Access Token, and the 44 available tools let it read and act on your inbox on your behalf.
The server uses Streamable HTTP transport, so any MCP client that supports it can connect directly. Clients that only support stdio (like Claude Desktop) can use the mcp-remote bridge.