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Documentation SDKs API Reference Resources

API ReferenceSwitch docs section

DocumentationConcepts, walkthroughs, embeddable UI, and operational setup.SDKsPython, TypeScript, Ruby, and Elixir client libraries.API ReferenceAuth, endpoints, example payloads, and webhook event schemas.ResourcesCompliance, changelog, deprecations, and glossary.

API Reference Introduction Authentication Error Reference

Create account Check account status Update account Archive account

Create audience Add contact to audience List audience contacts

Create campaign List campaigns Get campaign Update campaign

List contacts Create contact Get contact Update contact

List messages Send message Get message

List phone numbers Purchase phone number

List recordings Get recording Delete recording Download recording file

Create user List users Get user Update user Delete user Create user token

Create verification Check verification

Get attachment file Get attachment

Webhooks Overview Signature Verification

message.sent message.delivered message.failed message.received

contact.opted_in contact.opted_out

conversation.created

campaign.approved

phone_number.attached_to_campaign

recording.completed

voicemail.received

Attachments

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Get attachment Get attachment file

Endpoint/Attachments

Attachments

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Get attachment Get attachment file

Last updated May 2, 2026

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