About Keep
Keep is a save-anywhere tool built around one idea: everything you capture should be available as clean markdown that an AI agent can read. Articles, tweets, YouTube videos with transcripts, GitHub stars, newsletters, RSS, and plain URLs all land in the same searchable library.
People read their library in a clean in-app feed. Agents read it through the API, CLI, MCP server, and Claude Code skill, so Claude Code, Cursor, ChatGPT, and other tools can work against the library directly. Auto-sync pulls from RSS, YouTube, X bookmarks, GitHub stars, and newsletter inboxes on a schedule, so the library stays current without manual work. Semantic search runs across everything you've saved.
About Raindrop
Raindrop is a bookmark manager with polished apps on every major platform, a generous free tier with unlimited bookmarks, and a surprisingly thorough AI layer for Pro users. Pro is $3/mo ($28/yr) and unlocks full-text search across saved pages and PDFs, the Stella AI assistant, a permanent web archive, reminders, and annotations on highlights. Highlights themselves are free on every tier.
The product quietly got ambitious on AI in 2025. There's an official MCP server at /rest/v2/ai/mcp that works with Claude, Cursor, ChatGPT, VS Code with Copilot, Windsurf, and Zed, plus an open REST API with OAuth and token auth.