Slack
Let your coding agent read Slack channels, send updates, and handle files without custom Slack API scripts.
Overview
ai.waystation/slack is a MCP server for the Build phase that sends messages, reads channels, and manages Slack files through Waystation-hosted MCP remotes.
What is this MCP server?
- Send messages and thread replies into channels your agent can target by name or ID
- List and read channel history so agents can summarize threads or draft responses
- Upload and reference files in Slack from agent-driven workflows
- Hosted Waystation remotes: streamable-http and SSE endpoints (no local server repo required)
- Version 0.3.1 server schema aligned with MCP 2025-09-29
- Server version 0.3.1 per MCP server manifest
- 2 remote transports: streamable-http and SSE
- Source repository: github.com/waystation-ai/mcp
Community signal: 54 GitHub stars.
What problem does it solve?
You want your agent to post or read Slack without writing and hosting a custom Slack app integration.
Who is it for?
Indie SaaS founders who already run on Slack and want launch or ops updates driven from the coding agent.
Skip if: Teams that do not use Slack, need on-prem-only routing, or require enterprise compliance workflows this bridge does not document.
What do I get? / Deliverables
After you register the Waystation Slack MCP remote, your agent can query channels and send vetted messages from the same session where it ships code.
- Agent-callable Slack messaging and channel access via MCP tools
- Configured MCP remote entry pointing at waystation.ai/slack endpoints
Recommended MCP Servers
Journey fit
How it compares
MCP Slack bridge via Waystation, not a standalone agent skill or Slack app template repo.
Common Questions / FAQ
Who is ai.waystation/slack for?
Solo and small-team builders using Slack who want MCP agents to read channels and send messages without custom API code.
When should I use ai.waystation/slack?
Use it during Build when you connect your agent to Slack for notifications, support handoffs, or thread summaries tied to shipping work.
How do I add ai.waystation/slack to my agent?
Add the Waystation Slack MCP remote (streamable-http or SSE URL from the server manifest) in your client’s MCP config and complete Slack authorization through Waystation.