Unified API for WhatsApp, SMS, OTP, and transactional email for developers.
Product memo
Developers building multichannel communication into apps use SendAPI to consolidate WhatsApp, SMS, and email. It provides a single API endpoint and key, simplifying integration for transactional messages and OTP verification. This approach removes the friction of managing multiple vendor APIs, offering a simplified product for global carrier reach.
For who
Developers building multichannel communication into apps
Solves what
Sending WhatsApp, SMS, OTP, and transactional emails via a single API.
- Unified messaging API
- Global carrier reach
- Official Meta Business Partner
In their own words
Multichannel Messaging API — WhatsApp, SMS & Email
SendAPI is a unified messaging API for developers. Send WhatsApp messages, SMS, OTP verification codes, and transactional email from a single REST API endpoint using one API key. SendAPI is an official Meta Business Solution Provider with delivery to 190+ countries.
SendWhatsApp messages, SMS, OTP verification codes, and transactional email from a single REST API endpoint using one API key.
Commercial cues
Model
subscription
Free tier
Yes
Trial
7d
Pricing Strategy
- • Flat monthly tiers simplify core channel costs for predictable budgeting.
- • Tiered limits on emails and WhatsApp sessions guide upgrades.
- • 7-day trial lowers adoption risk.
Operator context
Founded
May 2026
Platform
API
Audience
Developers
Payments
Dodo Payments
Public footprint
Tech stack
Builder Strategy
- Strategy Type
- Niche Specialist
- Stage
- Vc Growth
- Effort
- Solo Buildable
About Sendapi Expand
SendAPI provides developers with a unified API to integrate multichannel communication into their applications. It simplifies sending WhatsApp messages, SMS, OTP verification codes, and transactional emails through a single REST API endpoint using one API key.
This consolidation removes the complexity of managing multiple vendors and APIs, making it easier for teams to build reliable messaging infrastructure. The platform's global carrier reach and clear, tiered pricing help developers scale their communication needs without unexpected costs or integration headaches.