MESSAGING FOR YOUR APPLICATIONS
Your numbers.
Your messages.
Send SMS and receive signed webhooks through one Quad State API.
Connect your account
Use the API token issued by Quad State. Your token stays in memory for this page session.
Account
OUTBOUND
Send a message
INBOUND & STATUS
Receive webhooks
Events arrive as signed JSON POST requests. Return a 2xx response after saving the event.
Rotating immediately replaces your signing secret. Update your receiver before accepting subsequent events.
Signature verification and retry policy ↗ACTIVITY
Recent messages
| Time | Direction | From → To | Message | Status |
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Webhook deliveries
| Event | Status | Attempts | HTTP | Action |
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