Open Brain Server MCP Server

A self-hostable memory server for MCP clients (Claude, ChatGPT, any assistant that speaks MCP). Thoughts flow in from Telegram, pipelines, or direct

Remote serverstreamable-httpPython

What is the Open Brain Server MCP Server?

A self-hostable memory server for MCP clients (Claude, ChatGPT, any assistant that speaks MCP). Thoughts flow in from Telegram, pipelines, or direct capture, and

Configuration and credentials

  1. Supabase account -- Supabase is a hosted Postgres database with built-in APIs, authentication, and Edge Functions (serverless code). Create a free account at supabase.com. Create a new project -- you will need the project URL (looks like https://abcdef.supabase.co) and the service role key (a long string found under Settings > API). 2. Supabase CLI --

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Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
search_thoughtsSemantic search with optional graph expansion (1-hop traversal)
list_thoughtsBrowse thoughts filtered by type, topic, person, theme, quality, time
thought_statsAggregate statistics: counts, type/theme breakdown, top topics/people
capture_thoughtSave a new thought from any AI client (with auto-embedding)
get_connectionsGraph traversal from a thought (typed links: extends, contradicts, etc.)
list_entitiesBrowse extracted entities (people, tools, projects, orgs) by frequency
weekly_reviewAI-generated summary of themes, open loops, and next steps
analyzeGraph analysis: hubs, density, sources, co-occurrence, themes
dedup_reviewDuplicate candidates with similarity zone histogram
refresh_salienceRecompute all salience scores
update_thoughtRewrite content (re-embeds, re-extracts metadata)
delete_thoughtPermanent delete (cascades connections)
serendipity_digestResurface forgotten high-quality thoughts
pipelinePipeline monitoring: health status, run history, merge audit

Configuration

  1. Supabase account -- Supabase is a hosted Postgres database with built-in APIs, authentication, and Edge Functions (serverless code). Create a free account at supabase.com. Create a new project -- you will need the project URL (looks like https://abcdef.supabase.co) and the service role key (a long string found under Settings > API). 2. Supabase CLI --
VariableDescriptionRequired
MCP_ACCESS_KEYCredential the server authenticates with.Yes

Example prompts to try

  • “Use Open Brain Server to search thoughts.”
  • “Use Open Brain Server to list thoughts.”
  • “Use Open Brain Server to thought stats.”

Frequently asked questions

A self-hostable memory server for MCP clients (Claude, ChatGPT, any assistant that speaks MCP). Thoughts flow in from Telegram, pipelines, or direct capture, and Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.