What's new in June 2026

OpenClaw Easy 2026.5.29 (June 2026) makes Slack thread-replies the default — the bot replies in-thread instead of cluttering channels. Toggle in channel settings if you want the old top-level behaviour. The Slack adapter also respects per-user "Do Not Disturb" status, holding notifications and resuming them when DND ends. Download the latest signed installer →

Slack is where teams ship work. It is also where a good AI chatbot can save the most time — answering FAQs, summarising long threads, translating messages, drafting replies, and running scheduled summaries without anyone leaving the app. The problem is that most of the popular options either lock you into an Enterprise plan (Slack AI) or require you to host a web server, register a Slack App from scratch, and wire up webhooks.

This guide shows the simplest path: an AI chatbot for Slack that takes about 5 minutes to install, uses Claude, ChatGPT, Gemini, or a local Llama model, and runs from a free desktop app. No Workflow Builder, no webhook, no VPS, no code. We will use OpenClaw Easy — a free signed desktop installer for macOS and Windows.

OpenClaw Easy dashboard with the Slack channel connected and an AI bot replying

What You Will Need

  • A Slack workspace where you can install apps. If you are a workspace admin, you are set. If not, an admin can usually approve the install with one click.
  • A computer running macOS or Windows. The bot lives on your desktop, not in the cloud.
  • An AI provider — pick one of:
    • An Anthropic Claude, OpenAI ChatGPT, or Google Gemini API key.
    • A local model via Ollama (Llama 3, Qwen 2.5, DeepSeek R1, Mistral) — fully private, no API key.
    • An OpenClaw Easy premium plan for managed AI access without API keys.
  • 5 minutes. That is the whole budget.

Why Add an AI Chatbot to Slack?

An AI bot inside Slack reduces context-switching to zero — your team gets AI help where they already work:

  • Instant Q&A — mention the bot in any channel and get a Claude/ChatGPT/Gemini answer in seconds, without anyone opening a separate tab.
  • Thread summarisation — long threads collapse into a clean recap; new joiners catch up in one read.
  • Daily standups and digests — schedule the bot to post a recap of yesterday or a digest of overnight #support traffic via cron jobs.
  • Drafting and translation — DM the bot to draft a customer reply, translate a partner message, or rewrite a Notion paragraph.
  • Lightweight internal support — point the bot at a system prompt that knows your stack and tools so it can field "how do I do X" questions.

The traditional path to any of these requires a Slack App registration, a server with a public HTTPS endpoint, Bolt or Slack SDK code, and someone to keep the bot deployed. OpenClaw Easy collapses all of that into a desktop install and an OAuth click.

Step-by-Step: Add an AI Bot to Slack in 5 Minutes

1 Download and Install OpenClaw Easy

Grab the free signed installer from the OpenClaw Easy download page:

  • macOS — universal .dmg for Apple Silicon and Intel, notarized by Apple.
  • Windows — EV-signed .exe installer.

Open the installer and follow the prompts. The whole install takes about 30 seconds — no terminal, no Docker, no admin password on a typical setup.

2 Pick Your AI Provider

Open the AI Provider section in OpenClaw Easy's sidebar and choose your backend:

  • Premium plan — managed AI access. No API key needed. Best if you do not want to maintain a billing relationship with OpenAI or Anthropic.
  • Bring Your Own Key — paste your Claude, ChatGPT, Gemini, OpenRouter, or other provider key. Best for power users.
  • Local LLM via Ollama — point the app at your local Ollama instance and route Slack replies through Llama 3, Qwen 2.5, DeepSeek R1, or Mistral. Best for fully private setups (see the local-LLM guide).
AI Provider settings in OpenClaw Easy with Claude, ChatGPT, Gemini, and Ollama options

3 Open Channels › Slack

In the sidebar, click Channels, then click the Slack tile. OpenClaw Easy will open your default browser to start the Slack OAuth flow.

Tip: OpenClaw Easy uses Slack Socket Mode, so it does not need a publicly reachable webhook. Messages flow over a secure WebSocket from Slack directly to your desktop — no ngrok, no VPS, no exposed HTTP endpoint.

4 Authorize the Slack App

Sign in to the Slack workspace where you want the bot to live, then click Allow to authorize the scopes:

  • channels:history and channels:read — read messages in channels the bot is invited into.
  • chat:write — post AI replies.
  • im:history and im:write — handle direct messages with the bot.
  • groups:history and mpim:history — private channels and multi-party DMs.

If your workspace requires admin approval for new apps, Slack will queue the install for an admin. Once approved, OpenClaw Easy will pick up the new credentials automatically.

5 Invite the Bot and Start Chatting

Open Slack and:

  1. Pick the channel you want the bot in.
  2. Type /invite @your-bot (use whatever username you set during OAuth).
  3. Mention the bot in a message, or DM it directly.
  4. Watch the AI reply in-thread by default (June 2026 change — keeps channels clean).
Slack channel showing a thread reply from the OpenClaw Easy AI bot

How It Works (vs. Slack AI, vs. Webhooks)

OpenClaw Easy connects to Slack using Socket Mode — a secure WebSocket initiated from your desktop. Slack pushes events (new message, mention, DM) down the socket, OpenClaw Easy forwards them to your AI provider, and the model's reply goes back up the socket to Slack. The flow is:

  1. A user posts a message in a channel or DMs the bot.
  2. Slack pushes the event over Socket Mode to OpenClaw Easy on your desktop.
  3. OpenClaw Easy applies your system prompt and forwards the message to your AI provider.
  4. The AI response is posted back to Slack as a thread reply (or top-level message, configurable).

Two important contrasts:

  • Versus Slack AI: Slack AI is built-in but requires a paid Enterprise plan and only uses Slack-hosted models for summarisation, search, and recap. OpenClaw Easy is free, lets you pick the model (Claude, ChatGPT, Gemini, local Llama), and responds conversationally in any channel.
  • Versus a custom Slack App with webhooks: a webhook setup needs a public HTTPS endpoint, a hosted server, and a request-signature check. Socket Mode skips all of that — the bot works behind a NAT, on a laptop, with no exposed HTTP port.

Customising Your Slack Bot

Once the bot is connected, OpenClaw Easy lets you tune behaviour without touching code:

  • System prompt — define personality, tone, and constraints. For an internal support bot: "You answer questions about our SaaS product. Cite docs URLs when relevant. Keep replies under 150 words."
  • Model selection — switch between Claude Sonnet, ChatGPT-5, Gemini 2.5, and local Ollama models per-channel or globally.
  • Thread-only mode (default in June 2026 release) — the bot replies inside threads to avoid cluttering the channel.
  • DND respect — the Slack adapter honours per-user Do Not Disturb status and holds notifications until DND ends.
  • Cron jobs — schedule the bot to post a daily summary, run a weekly digest, or send a reminder. See how to schedule AI tasks with cron.
  • Tools and permissions — toggle tools the AI can use (web search, file read, etc.) per agent.

Choosing the Right AI Model for Slack

Claude (Anthropic)

Strong on long-context summarisation and careful reasoning. Picks the right tone for support and internal-Q&A bots. Claude Sonnet is the best price/quality default for conversational Slack workflows.

ChatGPT (OpenAI)

Fast, broadly capable, and the cheapest mainstream option. GPT-5 mini is ideal if you want a Slack bot that scales to high message volume without burning through budget.

Gemini (Google)

Excellent multilingual support and strong on factual answers. Pick this if your Slack workspace spans regions and you need quality replies across languages.

Local Llama via Ollama

The privacy-first choice. Llama 3.2, Qwen 2.5, DeepSeek R1, and Mistral all run well on Apple Silicon and modern PCs. Messages never leave your machine — handy if your Slack workspace handles regulated data.

Slack AI vs. OpenClaw Easy vs. Third-Party Bots

If you are still comparing options, the short version:

  • Slack AI — built-in, but requires paid Enterprise plan; limited to summarisation, search, and recaps. No custom system prompt.
  • ChatBot.com / Drift — sales/CS focused; designed for external customer chat, not internal team workflows. Paid from day one.
  • OpenClaw Easy — free desktop app; you pick the AI model; OAuth install in 5 minutes; runs anywhere your laptop runs; full system-prompt + tools control.

For a full side-by-side, see our 7 best AI chatbots for Slack in 2026 comparison.

Frequently Asked Questions

What is the best AI chatbot for Slack?

It depends on what you want. Slack AI is built-in but locked to paid Enterprise plans. ChatBot.com and Drift are sales/support focused. OpenClaw Easy is the right choice if you want a free Slack AI bot that uses Claude, ChatGPT, Gemini, or a local Llama model and that you control end-to-end. It installs via OAuth in about 5 minutes and runs from your desktop.

Is there a free AI chatbot for Slack?

Yes. OpenClaw Easy is free to download and free to use with your own AI provider API key (Claude, ChatGPT, Gemini). You only pay for the AI tokens your bot consumes through your provider. There is also a premium plan if you would rather not manage API keys yourself.

Does the Slack bot need a server?

No. OpenClaw Easy handles Slack events using Slack's Socket Mode, which means messages flow over a secure WebSocket from Slack directly to your desktop. There is no public HTTP endpoint, no webhook to host, no VPS, no ngrok. The bot is live whenever the desktop app is running.

Can the Slack bot reply in threads only?

Yes. Since the June 2026 release, OpenClaw Easy makes thread-replies the default behaviour, so the bot keeps channels uncluttered. You can flip the toggle in the Slack channel settings if you want the old top-level reply behaviour. The Slack adapter also respects per-user Do Not Disturb status.

How is OpenClaw Easy different from Slack AI?

Slack AI is built into paid Enterprise plans and only uses Slack's hosted models with summarisation and search features. OpenClaw Easy is a free desktop app that brings Claude, ChatGPT, Gemini, or local Ollama models into Slack as a conversational bot that replies to messages, DMs, and threads — and that you can extend with your own system prompt, cron jobs, and tools.

What Is Next?

Your Slack AI bot is live. Some next steps:

  • Connect more channels — the same OpenClaw Easy install can host AI bots on WhatsApp, Telegram, Discord, Feishu, and LINE — pick any combination.
  • Schedule daily digests — use the cron section to schedule AI tasks like a 9 a.m. summary of overnight #support traffic.
  • Compare options — read the 7 best AI chatbots for Slack in 2026 if you are still evaluating.
  • Go fully private — switch the AI provider to a local Ollama model so Slack messages never leave your machine.

Adding an AI chatbot to Slack used to mean a sprint of Bolt code and an exposed webhook. With OpenClaw Easy, it is an OAuth click. Download the free desktop app and have your Slack bot live this afternoon.