Pricing

from $0.01 / 1,000 results

Slack Bot Poster

Send automated messages to Slack workspaces using your bot token. Perfect for notifications, alerts, scheduled updates, and team automation. Simple Message. Rich Blocks, Attachments, Multi-Channel, Thread Replies, Custom Branding & Validation Mode

Pricing

from $0.01 / 1,000 results

Rating

0.0

(0)

Developer

The Howlers

Actor stats

Bookmarked

Total users

Monthly active users

5 days ago

Last modified

Before You Start

This actor requires your own API credentials to fetch real data.

Where to get your key: Your Slack Bot OAuth Token (starts with xoxb-). Get one from https://api.slack.com/apps

You can test with Demo Mode first (free, no key needed) to see the output format before committing.

Quick Start

Test with Demo Mode (free, no API key needed)

{
  "demoMode": true,
  "unfurlLinks": "https://example.com",
  "unfurlMedia": "https://example.com",
  "iconUrl": "https://example.com"
}

Run with real data

{
  "demoMode": false,
  "botToken": "YOUR_API_KEY_HERE",
  "replyBroadcast": false,
  "unfurlLinks": true,
  "unfurlMedia": true,
  "mrkdwn": true,
  "iconUrl": "https://example.com",
  "validateOnly": false
}

Input Parameters

Parameter	Type	Default	Required	Description
`botToken`	string	-	Yes*	Your Slack Bot OAuth Token (starts with xoxb-). Get one from https://api.slack.com/apps
`channelId`	string	-	No	The Slack channel ID to post to (e.g., C1234567890). Right-click channel > Copy Link to get ID
`channelIds`	array	-	No	Post to multiple channels at once
`message`	string	-	No	The message text to post. Supports Slack markdown (bold, italic, links)
`messages`	array	-	No	Send multiple messages in sequence
`blocks`	string	-	No	Rich message layout using Slack Block Kit (JSON array). See: https://api.slack.com/block-kit
`attachments`	string	-	No	Legacy attachments for colored sidebars and fields (JSON array)
`threadTs`	string	-	No	Reply to a specific message thread (message timestamp like 1234567890.123456)
`replyBroadcast`	boolean	`false`	No	When replying to a thread, also post to the channel
`unfurlLinks`	boolean	`true`	No	Enable link previews in the message
`unfurlMedia`	boolean	`true`	No	Enable media previews (images, videos) in the message
`mrkdwn`	boolean	`true`	No	Enable Slack markdown formatting (bold, italic, etc.)
`iconEmoji`	string	-	No	Override the bot icon with an emoji (e.g., :robot_face:)
`iconUrl`	string	-	No	Override the bot icon with a custom image URL
`username`	string	-	No	Override the bot display name for this message
`validateOnly`	boolean	`false`	No	Test channel access without posting messages
`demoMode`	boolean	`true`	No	Run with sample data without requiring credentials
`webhookUrl`	string	-	No	URL to receive a POST request when the actor run finishes. Useful for integrations with Zapier, Make, n8n, or custom automation workflows.

*Required when Demo Mode is off.

Pricing

This actor uses pay-per-event billing:

Event	Description	Price
Message Sent	Each message posted to Slack	$0.01

Demo mode is free -- no charges for sample data.

Troubleshooting

"API key is required"

You have Demo Mode turned off but didn't provide an API key. Either:

Turn Demo Mode on to test with sample data
Add your API key in the input

"API error 403" or "Unauthorized"

Your API key is invalid, expired, or doesn't have access to this specific API endpoint. Double-check your key and account permissions.

"API error 429" or "Rate limit"

Too many requests. Wait a minute and try again, or reduce the number of items per run.

No results or empty dataset

Check the run log for error messages. Common causes:

Invalid input format (check the examples above)
API key without proper permissions
The target data doesn't exist or is too small to track

How do I test without an API key?

Enable Demo Mode in the input. This returns realistic sample data so you can verify the output format works for your workflow.

Built by John Rippy | Actor Arsenal

Discord Bot Poster

alizarin_refrigerator-owner/discord-poster

Send automated messages to Discord servers using your bot token. Perfect for announcements, scheduled posts, community updates, and marketing automation. Simple Messages, Rich Embeds, Multi-Channel, Mentions, Batch Messaging & Validation Mode

The Howlers

Slack MCP Server

constant_quadruped/slack-mcp-server

MCP server for Slack workspaces. Read channel history, search messages, fetch thread replies, list users and channels, and post messages. Supports OAuth, Bot, and browser token authentication. Based on korotovsky/slack-mcp-server with 600+ GitHub stars.

Slack Notification Sender

automation-lab/slack-notification

Send messages to Slack channels via incoming webhooks. Supports plain text, Slack mrkdwn formatting, and Block Kit blocks for rich interactive notifications. Ideal for automated alerts, monitoring pipelines, and workflow integrations. No API credentials needed.

Stas Persiianenko

Telegram Integration - Bot Messenger

alizarin_refrigerator-owner/telegram-integration

Send automated messages, alerts & reports via Telegram. Support for groups, channels & direct messages. Perfect for monitoring alerts & team notifications.

The Howlers

Slack MCP

parseforge/slack-mcp

Model Context Protocol server that lets AI copilots list channels, pull message history, send updates, manage membership, and fetch metadata from your Slack workspace using scoped bot tokens.

ParseForge

5.0

Slack Messages Downloader

zuzka/slack-messages-downloader

Download message history from a public Slack channel. Extract message text, timestamps, user IDs, reactions, thread metadata, and files. Automatically paginates results and exports data in JSON, CSV, Excel, XML, or HTML for backups and reports.

Zuzka Pelechová

Slack Summary Reporter

marko.kubrachenko/slack-summary-reporter

A simple Python Actor that fetches recent Slack messages, summarizes them via OpenAI, and posts the summary back to Slack.

Marko Kubrachenko

Slack Message Generator

katerinahronik/slack-message

This actor sends messages to Slack automatically. It can be used instead of email notifications and is ideal to combine with other actors monitoring successful runs, errors, etc.

Kateřina Hroníková

146

Slack Download All Messages ✅

zuzka/slack-download-all-messages

Download Slack messages from all public channels in your workspace in a selected time frame. Extract message text, image URL, timestamp, reply count, user ID, reply user IDs, and more. Export Slack data in JSON, CSV, and Excel and use it for archives, backups, and automated reports.

Zuzka Pelechová