@Bobby-cell-commits
Basic information
Category
Memory & Knowledge
License
MIT
Transports
stdio
Author
Bobby-cell-commits
Submitted by
Bobby-cell-commits
Self-hostable MCP memory server for AI assistants — 16 tools, hybrid search, knowledge graph, auto-dedup, staleness pruning, automated ingestion pipelines. Built on Supabase + pgvector.
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"open-brain": {
"type": "http",
"url": "https://<supabase-project-ref>.supabase.co/functions/v1/open-brain-mcp/<api-key>/mcp"
}
}
}Semantic search with optional graph expansion (1-hop traversal)
Browse thoughts filtered by type, topic, person, theme, quality, time
Aggregate statistics: counts, type/theme breakdown, top topics/people
Save a new thought from any AI client (with auto-embedding)
Graph traversal from a thought (typed links: extends, contradicts, etc.)
Browse extracted entities (people, tools, projects, orgs) by frequency
AI-generated summary of themes, open loops, and next steps
Graph analysis: hubs, density, sources, co-occurrence, themes
Duplicate candidates with similarity zone histogram
Recompute all salience scores
Rewrite content (re-embeds, re-extracts metadata)
Permanent delete (cascades connections)
Resurface forgotten high-quality thoughts
Pipeline monitoring: health status, run history, merge audit
Review and act on stale thought candidates
Instructions for importing memories from other platforms
Open Brain is a self-hostable, graph-structured memory server for MCP clients (Claude, ChatGPT, and any assistant that speaks the Model Context Protocol). Thoughts flow in from Telegram, pipelines, or direct capture and are stored in a Newman-IDF weighted entity graph with PostgreSQL and pgvector. An automated Dream cycle deduplicates near-duplicates, tracks theme drift, synthesizes insights, and archives stale content. It benchmarks at 37.2% on LongMemEval.
Deploy Open Brain on Supabase (hosted) or with Docker Compose (self-hosted). After deployment, connect your AI client by providing the MCP endpoint URL and the generated MCP access key. Use the claude mcp add command (Claude Code) or configure the connector in Claude Desktop or ChatGPT Settings to start capturing and searching thoughts.
Open Brain uses a Newman-IDF weighted entity graph with automatic entity extraction, typed relationships (extends, contradicts, is-evidence-for, supersedes), and a Dream cycle that deduplicates, tracks theme drift, and synthesizes insights – not just a flat document store.
You can deploy Open Brain on Supabase (hosted, with scheduling via GitHub Actions) or with Docker Compose (self-hosted, with a built-in cron container). Both use PostgreSQL with pgvector.
You need a Supabase account (or Docker for self-hosting) and an OpenRouter API key for embeddings and metadata extraction. A Telegram bot is optional but recommended for mobile capture.
MCP endpoint access is secured with a cryptographic personal access key. Clients send this key in the `x-brain-key` HTTP header when connecting to the MCP server.
All data is stored in your own Postgres database with pgvector for vector similarity search. On Supabase it is managed hosting; with Docker it runs on your own machine or server. You retain full ownership.
Project context your AI can query through MCP — with source evidence.
Serve your docs to AI agents over SSH and MCP. Agents use ls, cat, grep, find, and pipes against a virtual filesystem backed by your documentation. Identity-scoped access, governed writing with human approval, and portab
One permissioned folder your team and your AI agents both log into.
Person-owned, portable AI memory served over MCP. Your knowledge, preferences, and decisions — captured in one assistant, available in all of them.
Mess in, magic out: pour in your D&D and TTRPG notes and LoreKeeper keeps them as a private store for your world. Ask Claude or ChatGPT about it, or build a sourcebook.
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