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open-brain vs Slack
Side-by-side comparison of two Model Context Protocol servers. Pick the right one for Claude Desktop, Claude Code, or Cursor.
open-brain
Graph-structured MCP memory server. 37.2% on LongMemEval baseline — a benchmark most memory systems don't publish. Capture thoughts from any AI assistant (Claud
Comparison
| Feature | open-brain | Slack |
|---|---|---|
| Pricing | Free | Free |
| Installs | — | 9,200 |
| Rating | — | 4.6 (158) |
| Verified | — | |
| Hosted | — | Hosted |
| Tools | — | 4 |
| Category | communication | communication |
| Author | bogdan9095 | Slack |
| Repo | smithery-ai/cli | unyly/mcp-slack |
When to pick open-brain
Graph-structured MCP memory server. 37.2% on LongMemEval baseline — a benchmark most memory systems don't publish. Capture thoughts from any AI assistant (Claude, ChatGPT, or any MCP client), Telegram, or automated pipelines. Thoughts land in a Newman-IDF weighted entity graph (~34K cross-cluster bridges), not a flat document store. Automated Dream cycle runs in the background: deduplicates near-duplicates, tracks theme drift, synthesizes insights across clusters, archives stale content. 17 MCP tools. PostgreSQL + pgvector. Self-hostable on Supabase or Docker.
When to pick Slack
Bring your Slack into Claude. Catch up on channels, search history, send messages and summarize long threads.
Looking for something else? Browse all MCPs or check trending this week.