Schedule HTTP calls with cron syntax or plain English, plus uptime monitoring and heartbeats
Independent WhatsApp API for developers with signed webhooks and group management
Stage
Not given
Not given
Founded
2022
Not given
Based in
DK
TH
Pricing model
Freemium
Freemium
Pricing
Starter free plan includes 2 combined items. Pro plans start at $2.99/month for 3 items, $3.59/month for 5 items, $4.99/month for 10 items, $6.49/month for 15 items, $7.99/month for 20 items. Ultra plans start at $11.99/month for 25 items, with API access and priority support. Annual billing availab
Free sandbox: 180 messages per day, 10 new chats per month, 1,500 API calls per month. Paid channels: 1-4 channels $25 USD per month or $240 USD per year each; 5-9 channels $20 USD per month or $192 USD per year each; 10+ channels $11 USD per month or $106 USD per year each.
Key features
Schedule in plain English or cron syntax with per-schedule IANA timezone support
1-minute cadence on paid plans
Automatic retries with exponential backoff
Historical logs of every scheduled call
Uptime monitoring from 1 minute to 24 hours
Heartbeat monitoring with /fail signal support
Test scheduled API calls on demand
Alerts to Slack, Discord, Telegram, or email
AI integrations to summarize or extract run responses
Crontap MCP server for AI editor integration
Send and receive WhatsApp messages
Signed HMAC-SHA256 webhooks
Group and community management
Media support (images, video, audio, documents)
Health panel with five readings per number
Unlimited messages on paid channels
Test delivery webhooks
MCP server for AI agents
Durable webhook outbox with retries
Number warm-up and rate limiting (HopGuard)
What makes it different
Per-schedule IANA timezone support—run reports at 5am London time and 9am New York time from the same account
1-minute cadence without per-target IAM setup required by Google Cloud Scheduler
Zero task cost per scheduled invocation unlike Zapier Schedule trigger
Native heartbeat monitoring catches silent failures without a separate service
Independent API not requiring Meta approval or per-conversation fees
Crontap
HelloHop