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API fundamentals

Environments Authentication API keys and scopes Headers and content types Pagination, filtering, sorting Idempotency Rate limits Error model Status codes

Message lifecycle SMS encoding and segments Sender ID Countries, operators and restrictions Sandbox vs Production

Account and billing

Balance Account limits Price list Estimate message cost Estimate campaign cost Charge records

Preview SMS Send single SMS Send bulk SMS Get message List messages Cancel scheduled message

Create campaign Get campaign Campaign messages Campaign delivery reports Cancel campaign

Delivery reports

Delivery report by message ID Delivery reports feed Delivery reports by campaign Delivery state reference Error code reference

Webhook overview Event types Delivery report event Inbound SMS event Failed message event Campaign completed event Balance threshold event Signatures Retries Replay Test webhook in Sandbox

Sender and compliance

Sender ID rules Sender ID request Sender ID request status Country readiness Operator restrictions Production readiness checklist

Contacts and suppression

Validate phone number Import contacts Contacts Update consent Suppress number Suppression list

Sandbox behavior Sandbox API key Simulate delivery status Virtual inbox Sandbox message logs Sandbox billing ledger

curl Node.js Python PHP Java C#Go Ruby PowerShell Postman collection OpenAPI specification

SMPP overview Credentials Bind settings DLR mapping Throughput and limits

Legacy HTTP API v1

Common balance SMS single SMS bulk SMS reports Email Viber

Developers / API reference

Failed message event

Webhook eventSandboxProduction

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Request schema, response schema and code examples will be added here.