Sendd documentation
Send SMS to Tanzanian numbers over plain HTTP, follow every message's status, and receive signed webhooks. Start with the quickstart, or open the full API reference.
Sendd is in development: live sending opens once launch checks pass. Test keys work today.
Guides
- QuickstartSend your first SMS with a test key, then follow its status.
- Authentication and scopesAPI keys, the scopes they carry, and what only signed-in members can do.
- IdempotencyRetry safely: the same request with the same key never sends or charges twice.
- Message statusesWhat each status means, and why accepted is never delivered.
- Test modeBuild and test your integration without sending or spending anything.
- ErrorsOne error shape for every operation, and which errors to retry.
- Webhooks and signaturesReceive status changes as signed HTTP requests, and verify every one.
- Rate limitsHow limits answer, and the limits in place today.
- Sending windowWhen promotional messages are sent, and what happens outside the window.
API reference
Every public operation, its parameters, responses, permissions and API key scopes, built from the published OpenAPI contract.
Open the API reference