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Upstream MCP Server

Read, search, reply, and automate your email through natural language.

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.

  1. Create a Personal Access Token in Upstream Settings
  2. Connect your AI client in under a minute
  3. Browse the full tool reference to see everything that’s available