The global SMS API that scales with you. Send and receive SMS messages worldwide through the API trusted by innovative businesses globally.
Fragmented SMS infrastructure holds you back.
Limited global reach
Technical complexity
Unpredictable costs
One unified platform eliminates every barrier.
Global coverage
Developer simplicity
Transparent pricing
Cover all touchpoints with unmatched reliability.
Carrier-grade infrastructure
Global leader
Direct carrier connections in 150+ countries enable superior message routing.
Enterprise scale
Billions of messages delivered monthly with carrier-level tracking.
Unmatched deliverability
Industry-leading delivery rates with intelligent routing optimization.
Integrate our API to unlock its full power.
Carrier-grade infrastructure
Track your metrics across channels in one place.
Advanced analytics
Examples of SMS communication outcomes you can achieve with our API.
Use cases
Verify customers instantly
Send one-time verification codes to authenticate users securely.
Boost customer communication
Keep customers informed about new offers with high open rates.
Implement two-factor authentication
Add an extra security layer to account access with SMS verification.
Send critical alerts
Notify customers about critical updates and important information.
Automate transactional messages
Send order confirmations and shipping notifications that reach customers immediately.
Drive customer engagement
Create personalized SMS campaigns that achieve significantly higher response rates.
Trusted by companies that demand results.
Frequently asked questions
Average global deliverability is 94.4% across 180+ countries. Actual rates vary by destination — Tier 1 markets (US, UK, EU) typically exceed 98%, while some emerging markets may be lower due to carrier filtering. The smart routing engine continuously optimizes routes to maximize delivery.
For each SMS, the routing engine evaluates all available carrier paths based on real-time deliverability data, latency, and cost. It selects the optimal route and automatically fails over to backup routes if the primary carrier returns errors or degrades in performance.
Throughput limits depend on the number type and destination country. US long codes support 1 message per second, US toll-free numbers support 10 per second, and short codes support 100+ per second. You can configure custom rate limits per number, and the API handles queuing automatically.
Bird automatically processes STOP/UNSUBSCRIBE keywords for US and Canadian numbers as required by TCPA and CTIA guidelines. For other countries, inbound opt-out messages are delivered via webhook so you can handle them according to local regulations.
Yes. Bird supports number porting from all major providers including Twilio, Vonage, and Sinch. The porting process typically takes 1-2 weeks for US numbers and varies by country. During migration, you can run both providers in parallel with no message loss.