Pay per connected channel. Not per message.
Predictable monthly billing. Upgrade or downgrade in one click. No long-term commitments.
Starter
Solo builders and side projects shipping for real.
7 days free, no credit card
- 1 channel
- Unlimited messages
- 2 API keys
- Signed webhooks with retries
- Realtime event streams
- Community support
Pro
Production teams running real workflows.
7 days free, no credit card
- 3 channels
- Unlimited messages
- 10 API keys
- Priority email support
- Advanced webhook retries
- Audit log + observability
Why this beats the usual options
No per-message markup
Twilio and the Cloud API tax every message. We don't. Pay per channel, send what you need.
Your code stays in your stack
Plain REST + signed webhooks. No SDK lock-in. Drop us in or rip us out without rewriting the world.
Webhooks signed Stripe-style
HMAC-SHA256 with the same envelope shape Stripe uses. If your team has wired Stripe, they've already wired us.
Fully managed, zero ops
We run the API, the delivery queue, the database, and the realtime layer. No servers to babysit, no upgrades to chase — just the REST API.
No Meta verification queue
Skip the weeks-long Business Account verification. Pair your number, scan a QR, send a message in five minutes.
Compare plans
| Feature | Starter | Pro |
|---|---|---|
| Connected channels | 1 | 3 |
| Messages | Unlimited | Unlimited |
| Webhook retries | 8× | 8× |
| Webhook delivery logs | 1hr | 24hrs |
| Rate limits (req/min) | 60 | 300 |
| Support | Community | Premium (4h) |
| SLA | — | 99.9% |
Pricing questions
Why per channel instead of per message?
Messages are unmetered. WhatsApp infrastructure cost scales with stateful connections — one socket per channel — not with throughput. Pricing should match the cost shape.
What are the rate limits?
Starter is capped at 60 req/min, Pro at 300, Max at 1500. Webhook delivery is unlimited and queued; the cap is on inbound REST calls.
Can I downgrade?
Yes. If you exceed your new plan's channel count, the oldest channels move to read-only until you bring the total back under cap.
Can I self-host?
No — WhatIsUp.dev is a fully managed service. Everything is delivered through the REST API and signed webhooks; there's no self-hosted build to deploy or maintain. We run the gateway, queue, database, and realtime layer for you.