Which tokens do I need?

Two: the Bot User OAuth Token (xoxb-…) and an app-level token (xapp-…) with the connections:write scope.

Which events should the app subscribe to?

message.channels, message.im and app_mention. Reinstall the app to your workspace if Slack prompts you.

Integration · Channels

Connect a FastClaw agent to Slack via Socket Mode — answer DMs and @-mentions in channels, no public URL required.

FastClaw opens the connection to Slack, so the bot works behind a firewall with no inbound webhook.

The bot token is validated against Slack's auth.test before it is saved.

Reply to direct messages and to @-mentions in channels, each with its own session.

Give your team an internal agent that can read connected tools, run skills and post scheduled reports.
See how teams roll this out in FastClaw for teams.
Serve the same agent on Feishu or Discord too.

Create an app at api.slack.com/apps and enable Socket Mode.
Create an app-level token with connections:write.
Under OAuth & Permissions, install the app and copy the Bot User OAuth Token.
Under Event Subscriptions, subscribe to message.channels, message.im and app_mention, then reinstall if prompted.
In FastClaw, open the agent → Channels → Slack, paste both tokens and connect.
Pair by sending /pair <code> from your own Slack account.

Slack is one of FastClaw's IM channels. For multi-replica deployments, enable Redis so only one replica holds the Socket Mode connection.

Turn any FastClaw agent into a Telegram bot in minutes: paste a BotFather token, pair your account, and chat in DMs or groups.

Connect a FastClaw agent to Discord: answer DMs and @-mentions in servers, with per-channel sessions, memory and sandboxed tools.

Create a Feishu bot by scanning a QR code and connect it to a FastClaw agent — long-connection mode, no public URL needed.

Connect a FastClaw agent to a WeCom (企业微信) smart bot over a long connection — create it by QR code, no public URL needed.

Start free in FastClaw Cloud, or self-host the single binary in a minute.