| Solmail MCP | Slack MCP Server | |
|---|---|---|
| Description | Send physical mail with Solana payments — AI agents can compose, price, and send letters and postcards via cryptocurrency. | The most powerful MCP server for Slack Workspaces. |
| Category | Communication | Communication |
| Language | JavaScript | Go |
| License | MIT | MIT |
| Stars | 0 | 1512 |
| Website | https://github.com/ExpertVagabond/solmail-mcp | https://github.com/korotovsky/slack-mcp-server |