Order & delivery updates
Send approved WhatsApp templates the moment an order is placed, packed or out for delivery — straight from your backend.
Build on Waasl
One API for every customer conversation. Send WhatsApp messages, sync contacts from your systems, route conversations to the right team and react to every event in real time.
What you can build
Section titled “What you can build”Two-way CRM sync
Upsert contacts with tags, stages and custom fields; get contact.updated webhooks when your team changes them in Waasl.
Smart routing
Assign conversations to agents or hand them between AI and humans based on signals only your systems know.
Event-driven workflows
Trigger Waasl automation workflows from your app, and subscribe to message, conversation and template events.
Start here
Section titled “Start here”QuickstartGet a key, send your first WhatsApp message and receive a webhook — in ten minutes.
AuthenticationAPI keys, live vs. test mode, scopes and key rotation.
WhatsApp messagingThe 24-hour window, templates, media and delivery statuses.
WebhooksEvent catalog, HMAC signatures and retries.
Conventions at a glance
Section titled “Conventions at a glance”| Base URL | https://api.waasl.io/v1 · sandbox https://stage.api.waasl.io/v1 |
| Auth | Authorization: Bearer wsl_live_… |
| Format | JSON in, JSON out · UTF-8 · Arabic-first search |
| Errors | RFC 9457 problem details with a stable code |
| Lists | Cursor pagination — data, next_cursor, has_more |
| Retries | Idempotency-Key on every write |
| Versioning | /v1 in the path, dated Waasl-Version header |
Every endpoint in the reference carries a status: Available live in the Waasl platform, Beta usable but may change, Coming soon designed and on the roadmap.