| MCP Server | Slack MCP Server | |
|---|---|---|
| Description | Send real physical postcards worldwide via AI agents. Bulk send up to 500 recipients. Volume pricing from $0.72/card. | The most powerful MCP server for Slack Workspaces. |
| Category | Communication | Communication |
| Language | TypeScript | Go |
| License | MIT | MIT |
| Stars | 3 | 1512 |
| Website | https://postcard.bot/developers | https://github.com/korotovsky/slack-mcp-server |