API Key (Resend)
Send emails via Resend with dynamic templates and variable substitution.
- Send to multiple recipients
- Custom from address
- HTML & plain text
All included, every plan
No integration tiers or per-connector fees. Every integration is available on every plan.
Agent-native
Every integration is automatically available to AI agents via the Model Context Protocol.
Variable substitution
All fields support {{variables}} from upstream nodes. Build dynamic, data-driven workflows.
Communication
Reach people on any channel
Slack
OAuth
Send messages to Slack channels and direct messages via workspace bots.
- Channel & DM messaging
- Multiple workspace support
- Rich formatting
SMS
API Key (Twilio)
Send text messages to phone numbers worldwide via Twilio.
- Multi-recipient
- E.164 phone format
- Per-workflow credentials
Telegram
Bot Token
Send messages to Telegram chats and channels via bot API.
- Chat & channel messaging
- Markdown formatting
- Custom bot token
Discord
Webhook URL
Send messages to Discord channels via webhooks. No OAuth required.
- Webhook-based (no OAuth)
- Custom bot username
- Discord Markdown
Data & Services
Connect to the tools your team uses
Google Sheets
Google OAuth
Read, append, and update data in Google Sheets spreadsheets.
- Read rows
- Append rows
- Update cells
GitHub
Personal Access Token
Create issues, post comments, and list issues in GitHub repositories.
- Create issues
- Post comments
- List issues
Notion
Integration Token
Create pages, query databases, and append content in Notion workspaces.
- Create pages
- Query databases
- Append blocks
Airtable
Personal Access Token
List, create, and update records in Airtable bases and tables.
- List records
- Create records
- Update records
YouTube
Google OAuth
Fetch video metadata or post comments on YouTube videos.
- Fetch video data
- Post comments
- View counts & stats
Utility
Control flow and connect to anything
HTTP Request
Bearer / Basic / API Key / None
Make requests to any REST API. The universal connector for any service.
- GET, POST, PUT, PATCH, DELETE
- Custom headers
- JSON response parsing
Condition
None
Branch workflow execution based on expressions and comparisons.
- 8 comparison operators
- Variable evaluation
- True/false branching
Connect to any API with HTTP Request
Don't see the integration you need? The HTTP Request node connects to any REST API. Set the URL, method, headers, auth, and body — all with full variable substitution. It's the universal escape hatch that makes ZeitFlow compatible with thousands of services.
Bearer TokenBasic AuthAPI KeyCustom HeadersJSON Parsing
Start building with integrations
All integrations are available on every plan. Create your first workflow and connect the tools your team depends on.