RemainAI: API and MCP endpoint.

Connecting an AI agent
  Paste this into any client that takes a connector URL:

      https://mcp.remainai.org/mcp

  Nothing to install and no token to copy. The client discovers how to
  authenticate, registers itself, and sends you to a page to approve it.

  In Claude Code:

      claude mcp add --transport http RemainAI https://mcp.remainai.org/mcp

  Once approved, an agent can search and read your notes, todos, tags,
  folders, feeds and rituals; capture, edit and file things if you let it;
  and ask questions of your own material if you let it spend AI credits.

  Machine-readable: https://mcp.remainai.org/llms.txt

Everything else here is the app's own API and needs a session.