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Email
The email API for developers who ship the rest of the message too.
Transactional email
Email marketing
Email API
Email automation
Email templates
Contacts & audiences
SMTP relay
Inbound email
Email deliverability
Email analytics
Inbox Insights
Inbox placement & testing
Competitive Insights
Competitor email campaigns
SMS
The SMS API for developers who actually need to ship.
Sending API
Numbers
Destinations
Two-way messaging
Routing
Marketing
Templates
Compliance
10DLC registration
Analytics
WhatsApp
Engage customers worldwide with WhatsApp API.
Sending API
Templates
Numbers
Two-way messaging
Coexistence
Conversations
Groups
Marketing
Meta business agent
Analytics
Apple Messages
Native choices, appointments and service in the Messages app.
Registration
Entry points
Rich messages
Forms
Appointments
Payments
Authentication
Automations
Marketing
Analytics
Voice
SIP trunking, with a record and events on every call.
Numbers
Outbound calls
Inbound routing
SIP trunking
Browser calling
Call sequences
AI voice
Recordings
Contact center
Analytics
Verify
The OTP API for developers who need codes to land.
SMS
Email
WhatsApp
Voice
Orchestration
Security
Passwordless
Two-factor authentication
Lookup
Check a phone number or an email address before you send to it.
Email
Phone number lookup
Mailbox
The Mailbox API for agents that answer their own email.
Read the mailbox guide
Email API
eSIM
Mobile data for your customers and employees.
Travel
Coverage
Automatic renewal
Installation
Usage and top ups
Device compatibility
Keep your number
Embedded connectivity
Employee connectivity
Operations
Realtime
Hosted pub/sub over WebSockets. Subscribe, publish, scale.
Channels
Presence
Security
End-to-end encryption
Webhooks
Use cases
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