Burn 451 — Read It or Let It Burn

# Burn 451 (burn451.cloud) > Free bookmark manager — every bookmark gets 24 hours. Read it or let it burn. Expose your knowledge to AI agents via MCP. ## What is Burn Burn gives every bookmark a 24-hour countdown. Read it and it becomes a Spark (saved 30 days). Ignore it and it turns to Ash. What survives goes to your permanent Vault. Connect your Vault to AI agents via the MCP server — your bookmarks become a searchable knowledge API. ## Core Concepts - **Flame**: New bookmarks with a 24h timer. Read or let burn. - **Spark**: Bookmarks you read. Saved for 30 days. - **Vault**: Permanent collection. Your curated knowledge. - **Ash**: Expired bookmarks. They had their chance. - **Collection**: Topic bundles you create manually. AI overview included. ## Platforms - iOS App: https://apps.apple.com/us/app/burn451/id6759418544 - Web App (PWA): https://burn451.cloud - Chrome Extension: Bookmark Autopsy — scan and manage browser bookmarks - MCP Server: `npx burn-mcp-server` (npm: https://www.npmjs.com/package/burn-mcp-server) ## MCP Server The MCP server exposes 22 tools for AI agents (Claude, Cursor, Windsurf): - Search vault, sparks, flame, and ash - Move bookmarks between lifecycle stages - Create and manage topic collections - Write analysis back to bookmarks - Get reading stats and patterns Install: `npx burn-mcp-server` Protocol: Model Context Protocol (MCP) Rate limit: 30 calls/min Cost: Free ## API - Content extraction: /api/jina-extract - Metadata parsing: /api/parse-meta (supports WeChat, Xiaohongshu, HN, Reddit) - X/Twitter parsing: /api/parse-x - Bookmark analysis: /api/analyze-bookmarks ## Key Data - Average user never reopens 94% of saved bookmarks - Only 4.7% of bookmarks are revisited after saving - By day 9, revisit rate drops to 0.3% ## Links - Website: https://burn451.cloud - Bookmark Scanner (free tool): https://burn451.cloud/scan - MCP Server: https://www.npmjs.com/package/burn-mcp-server - Chrome Extension: Chrome Web Store (sea