Slack API
Build apps and bots for Slack workspaces with APIs for messaging, notifications, workflows, and team collaboration features.
Verified
2026-02-03
At a glance
Essential information
About
Slack API enables developers to build powerful integrations, bots, and apps for workplace communication. With over 10 million daily active users across hundreds of thousands of workspaces, Slack is the leading platform for team collaboration.
What you can build
- Custom workflow automations
- Interactive chatbots and assistants
- Notification and alert systems
- Project management integrations
- Custom slash commands
- File sharing and collaboration tools
- Analytics and reporting dashboards
- External service integrations
Pricing
View Pricing| Free tier | Yes |
| Starting from | Free |
| Notes | API access is free. Slack workspace pricing (Free, Pro, Business+, Enterprise) is separate from API usage. |
Last updated: 2026-02-03. Please refer to the official pricing page as pricing may have changed.
Alternatives
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Authentication & Limits
View Docs- Auth type
- oauth2
- Rate limits
- Tier-based (1-100+ requests per minute) depending on method and workspace size.
FAQ
Yes, the API is free. You need a Slack workspace (free or paid) to build apps for, but API usage itself has no fees.
