SendlyEnable any AI agent to send and receive text messages instantly

Sendly - SMS API for Developers

Sendly is the developer-first SMS API that eliminates complexity and hidden costs. Send messages to 190+ countries with one API call, sub-3 second delivery, and transparent $0.02/msg pricing—no carrier fees, no surprise bills, no contracts.

Product Highlights

• Simple Integration: Get your API key in under 30 seconds with SDKs for 8 languages including Node.js, Python, Go, Ruby, PHP, Java, C#, and Rust
• Transparent Pricing: Flat $0.02 per message in US/Canada with no platform fees, carrier surcharges, or hidden costs—credits never expire
• Rapid Delivery: Send messages in under 50ms API response time with sub-3 second actual delivery and real-time webhooks for status tracking
• Global Reach: Deliver SMS to 190+ countries with local number provisioning for US/Canada and alpha sender IDs for international markets
• Developer Support: Real human support at every tier without $5,000 paywalls, plus free sandbox testing with no credit card required

Use Cases

• Two-Factor Authentication: Send OTP codes that deliver in under 3 seconds with automatic retry logic and email-to-SMS fallback for reliability
• Transactional Notifications: Power order confirmations, shipping alerts, password resets, and account alerts for SaaS platforms and e-commerce
• Marketing Campaigns: Execute bulk promotional sends to thousands of recipients with 98% open rates, scheduling, and reusable templates
• Agency & Multi-Tenant: Build white-label SMS infrastructure for multiple clients with per-client API keys and usage tracking

Target Audience

Sendly serves developers, startups, SaaS platforms, e-commerce businesses, marketing teams, and digital agencies who need reliable SMS delivery without the complexity, hidden fees, and painful approval processes common to legacy providers like Twilio and Vonage.