Open Brain is listed as active in the registry but did not answer our last check. Last commit 17 Apr 2026.
Graph-structured MCP memory server. 37.2% LongMemEval. Auto dedup, themes, decay, synthesis.
What the code does
We read the source, 11 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
result = subprocess.run(
reducer = pickle.load(f) # noqa: S301
const BASE_URL = () => `https://api.telegram.org/bot${getBotToken()}`;
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.
claude mcp add open-brain --transport http https://{supabase_project_ref}.supabase.co/functions/v1/open-brain-mcp/mcp{
"mcpServers": {
"open-brain": {
"url": "https://{supabase_project_ref}.supabase.co/functions/v1/open-brain-mcp/mcp"
}
}
}[mcp_servers.open-brain]
url = "https://{supabase_project_ref}.supabase.co/functions/v1/open-brain-mcp/mcp"{
"mcpServers": {
"open-brain": {
"url": "https://{supabase_project_ref}.supabase.co/functions/v1/open-brain-mcp/mcp"
}
}
}{
"mcpServers": {
"open-brain": {
"url": "https://{supabase_project_ref}.supabase.co/functions/v1/open-brain-mcp/mcp"
}
}
}Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://{supabase_project_ref}.supabase.co/functions/v1/open-brain-mcp/mcp | streamable-http | answering | 0 ms | 11 min ago |
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Open Brain — questions
Answers built from our own checks of this server.