Burn — Personal Knowledge Base MCP Server

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Your reading data as an AI-accessible knowledge base. 26 tools for Claude, Cursor, Windsurf, and any MCP-compatible agent.

You need a free Burn account to use this server. Install the iOS app or open burn451.cloud → Settings → MCP Server → Copy Access Token. Burn has a free tier (5 saves/day, all 26 MCP tools included) and a Pro plan at $4.99/month for unlimited saves.

How it works

Burn is a read-later app with a 24-hour deadline — saves auto-burn unless you read or rescue them. The honest answer to the bookmark graveyard problem — research suggests 84% of saved bookmarks are never revisited (Bergman, Whittaker & Schooler, 2021).

Triage flow:

• Flame → New links. 24h to read or they burn.
• Spark → You read it. Stays 30 days.
• Vault → Permanent. Your curated knowledge.
• Ash → Expired. They had their chance.

The MCP server lets your AI agent search, triage, organize, and analyze everything you've saved. Built for Claude users who want their reading history as context.

Migrating from another tool? Burn is a Pocket replacement (Mozilla shut Pocket down July 2025), an Omnivore alternative (acquired by ElevenLabs late 2024), and a Matter app alternative.

Quick Start

1. Get your token

1. Create a free Burn account — iOS app or web
2. Open the app → Settings → MCP Server → Generate token → Copy

The server exchanges your token for a short-lived Supabase session and caches it in ~/.burn/mcp-session.json. No re-login on each run.

2. Add to Claude Desktop

{
  "mcpServers": {
    "burn": {
      "command": "npx",
      "args": ["burn-mcp-server"],
      "env": {
        "BURN_MCP_TOKEN": "<your-token>"
      }
    }
  }
}

3. Start asking

• "What did I save about system design?"
• "Triage my Flame — what should I keep?"
• "Create a collection from my AI bookmarks"

Add to Cursor

.cursor/mcp.json:

{
  "mcpServers": {
    "burn": {
      "command": "npx",
      "args": ["burn-mcp-server"],
      "env": { "BURN_MCP_TOKEN": "<your-token>" }
    }
  }
}

Add to Claude Code (CLI)

claude mcp add burn -e BURN_MCP_TOKEN=<your-token> -- npx burn-mcp-server

Example prompts

Reading triage:

• "Go through my Flame inbox, read each article, keep anything about AI agents and burn the rest."
• "What's about to expire in the next 6 hours that I'd regret losing?"

Knowledge retrieval:

• "Search my Vault for everything on context engineering and summarize the main schools of thought."
• "Which authors do I save most often? What does that say about my reading gaps?"

Research curation:

• "Create a collection called 'MCP in production' from my saves, then write an overview of what my sources agree and disagree on."
• "Add a watched source for Simon Willison's blog so new posts land in my Flame."

Writing with your own sources:

• "I'm writing about read-later apps. Pull every relevant bookmark I have and list the claims I can support with a source."

Tools (26)

Search & Read

Tool	What it does
search_vault	Search permanent bookmarks by keyword
list_vault	List Vault bookmarks by category
list_sparks	List recently read bookmarks (30-day window)
search_sparks	Search Sparks by keyword
list_flame	List inbox — what's about to burn
get_flame_detail	Full detail on a Flame bookmark
get_bookmark	Get any bookmark by ID
get_article_content	Get full article content + analysis
fetch_content	Fetch content from a URL (X, Reddit, YouTube, WeChat)
list_categories	All Vault categories with counts
get_collections	List all Collections
get_collection_overview	Collection detail with AI overview

Triage (Agent as your filter)

Tool	What it does
move_flame_to_spark	Keep it — worth reading. Optional insight.
move_flame_to_ash	Burn it. Optional reason.
move_spark_to_vault	Promote to permanent. Optional category.
move_spark_to_ash	Not valuable enough to keep.
batch_triage_flame	Triage up to 20 at once.

Collections (Agent as your curator)

Tool	What it does
create_collection	Create a topic bundle with initial bookmarks
add_to_collection	Add bookmarks (deduplicates)
remove_from_collection	Remove bookmarks
update_collection_overview	Write AI overview (theme, synthesis, gaps)

Analysis (Agent as your analyst)

Tool	What it does
write_bookmark_analysis	Write structured analysis back to a bookmark

Auto-Feed (Agent as your scout)

Tool	What it does
add_watched_source	Watch an X user, RSS feed, or YouTube channel. New posts flow into Flame automatically.
list_watched_sources	List all active watched sources
remove_watched_source	Stop watching a source
scrape_watched_sources	Fetch new content from watched sources on demand

Resources

URI	Content
burn://vault/bookmarks	All Vault bookmarks (JSON)
burn://vault/categories	Category list (JSON)

Use Cases

Personal knowledge management — Your agent searches your reading history to answer questions, find patterns, and surface forgotten gems. See AI bookmark management concepts.

Research workflows — Create collections on topics you're exploring. Agent writes overviews synthesizing your sources. Examples: vault as Karpathy LLM wiki, Paul Graham vault, Simon Willison vault.

Reading triage — Agent reviews your Flame inbox, reads the content, decides what's worth keeping. Solves the reading list app problem of saves piling up.

Cross-tool intelligence — Use with Claude Code, Cursor, or Windsurf. Your bookmarks become context for coding, writing, and thinking. The MCP server architecture is open and documented.

Free vs paid choice — Burn's free tier includes all 26 MCP tools (5 saves/day); Pro is $4.99/month. See free bookmark manager comparison for honest landscape across 8 truly-free options.

Environment Variables

Variable	Required	Description
BURN_MCP_TOKEN	Yes*	Long-lived MCP token (recommended)
BURN_SUPABASE_TOKEN	Yes*	Legacy JWT token (still supported)
BURN_API_URL	No	Custom API URL (default: production)

*One of BURN_MCP_TOKEN or BURN_SUPABASE_TOKEN required.

Security

• Token scoped to your data only (Row Level Security)
• Status flow enforced: Flame → Spark → Vault, or → Ash
• Rate limit: 30 calls/min per session
• Tokens expire after 30 days

Links

• App: burn451.cloud
• iOS App: App Store
• npm: burn-mcp-server
• Chrome Extension: Search "Bookmark Autopsy" on Chrome Web Store
• Read-later app comparison (10 tools tested): best-read-later-app-2026
• AI bookmark organizer rankings: best-ai-bookmark-manager-2026
• Pocket alternative pillar: pocket-alternative-2026
• vs Raindrop comparison: burn-vs-raindrop
• Developer docs: burn451.cloud/developers

License

MIT