Guides

Task-focused guides for sending, receiving, verifying and managing recipients.

Sending messages: batches, MMS, metadata, scheduling and error handling.
Verify: confirm a user owns a phone number with a one-time code.
Webhooks: receive replies, delivery receipts and opt-outs as they happen.
Opt-outs: respect unsubscribes, and keep separate opt-out lists.
Contacts and groups: store recipients and organise them into groups.

For every endpoint, parameter and response, see the API reference.