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Slack

Communications

Send messages, manage channels, and automate workflows

Integrate with Slack to send messages, manage channels, upload files, and build automated notification workflows for your team.

Details

Auth Type
Bot OAuth Token (xoxb-...)
Rate Limit
1 request/second per method
Pricing
Free (limited) · Pro: $8.75/user/mo
Full Docs
Step 1: Save your provider key

This is NOT your Callio key. Enter the API key from the provider's dashboard (e.g. Your Slack bot token).

Bot OAuth Token (xoxb-...)

1. Go to https://api.slack.com/apps 2. Create or select your app 3. Install to workspace → copy Bot Token (xoxb-...) 4. Save as Provider Key below

Get API Credentials

Getting Started

1

Try It Instantly

Click "Try It" above to test the API in the playground

2

Add to Your Agent

Click "Add to Agent" to get your API key and integrate

Common Use Cases

Send notifications to channels
Create automated alerts
Post formatted messages
Manage channel membership
Build Slack bots

💻 Code Examples

Get started quickly with these code examples in your favorite language

curl -X GET \
  'https://callio.app/api/proxy/slack/forward?target=https%3A%2F%2Fslack.com%2Fapi%2Fendpoint' \
  -H 'Authorization: Bearer YOUR_CALLIO_KEY' \
  -H 'Content-Type: application/json'

💡 Tip: Replace YOUR_CALLIO_KEY with your actual Callio API key from the dashboard.

Ready to integrate Slack?

Test endpoints live or generate your API key and start building in minutes

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