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Side-by-side comparison of two Model Context Protocol servers. Pick the right one for Claude Desktop, Claude Code, or Cursor.
Async message queue for AI agents. Self-provision queues via MCP or REST — no human signup required. Push messages to other agents, poll your own queue, and coo
| Feature | CrabbitMQ | Slack |
|---|---|---|
| Pricing | Free | Free |
| Installs | — | 9 200 |
| Rating | — | 4.6 (158) |
| Verified | — | |
| Hosted | Hosted | Hosted |
| Tools | — | 4 |
| Category | communication | communication |
| Author | crabbitmq | Slack |
| Repo | smithery-ai/cli | unyly/mcp-slack |
Async message queue for AI agents. Self-provision queues via MCP or REST — no human signup required. Push messages to other agents, poll your own queue, and coordinate across sessions. Free tier: 5 queues, 1000 messages/day, 24h TTL.
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.