How to Build an AI Slack Bot

Slack is the communication hub for millions of teams. Adding an AI-powered bot to your Slack workspace brings the power of OpenClaw directly into your team's daily workflow. Instead of switching to a separate tool, team members can ask questions, automate tasks, and get AI assistance right where they already work.

In this guide, you will create a Slack app, connect it to your EZClaws agent, and configure it for team use. The result is an AI bot that can answer questions, summarize documents, draft content, look up information, and assist with virtually any task your team needs — all within Slack.

Prerequisites

Before you begin, ensure you have:

• A running OpenClaw agent on EZClaws — Follow the deployment guide if needed.
• A Slack workspace where you have admin permissions — You need to be able to create apps and install them in the workspace.
• An active EZClaws subscription — Slack bots in team environments can generate significant usage. A Pro or Business plan is recommended. See /pricing.
• Basic familiarity with the Slack admin interface — You should know how to navigate Slack's settings and app directory.

Step 1: Create a Slack App

Navigate to the Slack API portal at api.slack.com/apps and click Create New App.

Choose From scratch and fill in:

• App Name — Something your team will recognize, like "AI Assistant" or "EZClaws Bot."
• Workspace — Select the Slack workspace where you want to install the bot.

Click Create App. You will be taken to your app's configuration page.

Configure Bot Permissions

In the left sidebar, click OAuth & Permissions. Scroll down to Bot Token Scopes and add the following permissions:

app_mentions:read     — See when the bot is mentioned
channels:history      — Read messages in public channels
channels:read         — View basic channel information
chat:write            — Send messages
groups:history        — Read messages in private channels (optional)
groups:read           — View basic private channel info (optional)
im:history            — Read direct messages to the bot
im:read               — View basic DM info
im:write              — Send DMs
files:read            — Access files shared in conversations
reactions:write       — Add reactions to messages
users:read            — View basic user information

These scopes give your bot the ability to read messages where it is mentioned, respond in channels and DMs, and access shared files.

Enable Event Subscriptions

In the left sidebar, click Event Subscriptions and toggle it to On.

You will need to provide a Request URL — this is where Slack sends events (messages, mentions) to your bot. You will configure this in Step 3 after setting up the integration on EZClaws.

Subscribe to the following bot events:

app_mention          — When someone @mentions your bot
message.channels     — Messages in public channels the bot is in
message.groups       — Messages in private channels (optional)
message.im           — Direct messages to the bot

Step 2: Install the Slack Skill on EZClaws

Navigate to the EZClaws skills marketplace at /app/marketplace and find the Slack integration skill.

1. Click Install on the Slack skill.
2. Select the agent you want to connect to Slack.
3. The skill will prompt you for configuration values from your Slack app.

Required Credentials

From your Slack app's settings page, collect the following:

Bot Token — Found under OAuth & Permissions after installing the app to your workspace. Starts with xoxb-.

Bot User OAuth Token: xoxb-1234567890-1234567890123-XXXXXXXXXXXXXXXXXXXXXXXXXX

Signing Secret — Found under Basic Information > App Credentials. Used to verify requests from Slack.

Signing Secret: abc123def456ghi789

App Token (if using Socket Mode) — Found under Basic Information > App-Level Tokens. Create one with connections:write scope.

App Token: xapp-1-XXXXXXXXXXXXXXXXXX-1234567890-XXXXXXXXXXXXXXXXXXXXXXXXXX

Enter these values in the skill configuration on EZClaws.

Step 3: Configure the Webhook URL

After configuring the Slack skill on EZClaws, your agent will have a webhook endpoint for receiving Slack events. The URL will look like:

https://your-agent-domain.up.railway.app/slack/events

Go back to your Slack app's Event Subscriptions page and enter this URL in the Request URL field. Slack will send a verification challenge to this URL. If your agent is running and the skill is correctly configured, the verification will succeed automatically.

If verification fails:

1. Ensure your agent is in the "Running" state on the EZClaws dashboard.
2. Check that the Slack skill is installed and configured.
3. Verify the URL is correct and includes the /slack/events path.
4. Try again after 30 seconds for the skill to fully initialize.

Step 4: Install the App to Your Workspace

Return to your Slack app's OAuth & Permissions page and click Install to Workspace. Slack will ask you to authorize the permissions you configured earlier.

After installation, you will receive a Bot User OAuth Token. If you have not already entered this in the EZClaws skill configuration, do so now.

Invite the Bot to Channels

Your bot will only be active in channels where it has been invited. To add the bot to a channel:

1. Open the channel in Slack.
2. Type /invite @YourBotName or click the channel name > Integrations > Add apps.
3. Select your bot from the list.

Start by adding the bot to a test channel before rolling it out to your team.

Step 5: Configure Bot Behavior

Customize how the bot behaves in your Slack workspace through the agent's system prompt:

System Prompt Template for Slack

You are an AI assistant for [Team/Company Name] on Slack. Your role is to help
team members with their questions and tasks.

SLACK-SPECIFIC BEHAVIOR:
- When mentioned in a channel, respond in a thread to keep channels clean
- Keep responses concise — aim for 2-3 paragraphs maximum
- Use Slack formatting: *bold*, _italic_, `code`, ```code blocks```
- Use emoji reactions (thumbs up, eyes, etc.) to acknowledge messages quickly
- If a question is complex, acknowledge receipt first, then provide a detailed response
- For sensitive topics (HR, performance, salary), respond in DM instead of the channel

CAPABILITIES:
- Answer questions using your knowledge and web browsing
- Summarize long documents or threads
- Draft content (emails, messages, documents)
- Help with code review and debugging
- Research topics and compile findings
- Create task lists and action items

RESTRICTIONS:
- Do not share confidential information in public channels
- Do not make decisions on behalf of team members
- For requests involving external communication, draft and flag for review
- Do not access or discuss salary, performance, or HR matters in public channels

Slash Commands (Optional)

You can add slash commands for quick interactions. In your Slack app settings, go to Slash Commands and create commands like:

/ask [question]       — Ask the AI a question
/summarize            — Summarize the current channel's recent messages
/draft [type]         — Draft a document (email, report, etc.)
/research [topic]     — Start a research task
/help                 — Show available commands

Configure each slash command to point to your agent's endpoint:

Request URL: https://your-agent-domain.up.railway.app/slack/commands

Step 6: Test the Bot

Before rolling out to your team, test the bot thoroughly:

Test 1: Basic Mention

In your test channel, type:

@AI Assistant What can you help me with?

The bot should respond in a thread with its capabilities.

Test 2: Complex Question

@AI Assistant Can you research the latest trends in remote work
and give me a summary?

The bot should use its web browsing capability to research and provide a summary.

Test 3: Direct Message

Send a DM to the bot:

Can you draft an email to my team about our upcoming offsite?

The bot should draft an email without being mentioned (DMs do not require @mentions).

Test 4: File Processing

Share a document in the channel and ask:

@AI Assistant Can you summarize this document?

The bot should read the file and provide a summary.

Test 5: Thread Continuity

Start a conversation in a thread and send multiple messages. Verify the bot maintains context throughout the thread.

Step 7: Roll Out to Your Team

Once testing is complete, prepare for a team-wide rollout:

Announcement Message

Draft a message introducing the bot to your team:

Hey team! We've set up an AI assistant in Slack. Here's how to use it:

- Mention @AI Assistant in any channel to ask a question
- Send a DM for private conversations
- The bot can research, draft, summarize, and help with code
- Use /help for a list of commands

A few things to note:
- Be specific in your questions for better answers
- The bot responds in threads to keep channels clean
- Don't share sensitive information (passwords, keys) with the bot
- If something seems off, let [admin name] know

Give it a try! 🤖

Channel Strategy

Decide which channels get the bot:

• General/Team channels — For general Q&A and assistance.
• Engineering channels — For code help and technical questions.
• Support channels — For internal knowledge base questions.
• Dedicated AI channel — A channel specifically for interacting with the bot.

Usage Guidelines

Set clear expectations for your team:

1. The bot is a tool, not a replacement for human communication.
2. Important decisions should still go through normal team processes.
3. The bot's responses should be verified for critical information.
4. Credit usage is shared across the team — be mindful of excessive use.

Troubleshooting

Bot does not respond to mentions

1. Check agent status — Verify the agent is "Running" on the EZClaws dashboard.
2. Verify channel membership — Ensure the bot is invited to the channel.
3. Check event subscriptions — Verify app_mention is listed under Event Subscriptions in your Slack app.
4. Verify webhook URL — Ensure the Request URL in Event Subscriptions is correct and verified.
5. Check credits — Verify credit balance at /app/billing.

Bot responds but the message is empty or an error

1. Check API key — Verify your model provider API key is valid.
2. Review agent logs — Check the event log on your agent's detail page.
3. Check permissions — Ensure the bot has chat:write scope.

Bot responds slowly

1. Model speed — Larger models take longer. Consider GPT-4o-mini for faster responses.
2. Agent region — Deploy in a region close to your team. See deployment options on the deployment page.
3. Complex queries — Web browsing and multi-step tasks naturally take longer.

Bot does not maintain context in threads

1. Verify event subscriptions — Ensure thread-related events are configured.
2. Check memory settings — Enable conversation memory. See our memory guide.
3. Thread length — Very long threads may exceed context limits. Start a new thread for fresh topics.

Advanced Configuration

Rate Limiting

For large teams, configure rate limiting to prevent excessive usage:

• Set a maximum number of requests per user per hour.
• Configure priority channels that always get responses.
• Set up a queue for non-urgent requests during peak times.

Analytics

Track bot usage to understand how your team interacts with it:

• Most common question types
• Average response time
• Channel-by-channel usage
• Peak usage hours
• Credit consumption per user

Visit /app/billing and the monitoring guide for usage tracking.

Multi-Workspace Deployment

If your organization has multiple Slack workspaces, you can connect the same EZClaws agent to multiple workspaces by creating separate Slack apps for each workspace, all pointing to the same agent endpoint. Each workspace's conversations are isolated.

Summary

Building a Slack bot with EZClaws brings AI capabilities directly into your team's workflow. The setup involves creating a Slack app, installing the integration skill, connecting credentials, and configuring behavior — all doable within 20 minutes.

A well-configured Slack bot can answer team questions, draft content, research topics, summarize documents, and automate routine tasks. Start with a test channel, refine the bot's behavior based on team feedback, and gradually expand its presence across your workspace.

For other messaging platform integrations, check out our guides for Telegram, Discord, and WhatsApp. Explore our blog and use cases page for more ideas on using AI in your team.