Contiguity is a unified communications API platform that enables developers to send SMS, MMS, WhatsApp, iMessage, and email messages, as well as verify user identities, through a single integration. The platform offers unlimited sending at every scale, from hobbyists to Fortune 500 companies, with simple per-message pricing or flat-rate unlimited plans starting at $19.99/month. Contiguity also handles A2P 10DLC regulatory compliance automatically, removing a major friction point for businesses sending text messages in the US.
Funding
Funding not disclosed
Founders
Product
Problem
Developers building applications that need to reach customers across multiple channels face significant integration complexity, requiring separate APIs for SMS, email, WhatsApp, and iMessage. Additionally, messaging platforms often impose carrier-specific fees, complex regulatory compliance requirements like A2P 10DLC registration, and usage caps that create unpredictable costs and operational overhead.
Solution
Contiguity provides a unified communications API that lets developers send text, email, call, and verify customers through a single integration point. The platform supports SMS, MMS, WhatsApp, iMessage, and email, with global reach to over 180 countries and delivery in under 10 seconds. Contiguity offers unlimited sending at every scale, eliminating concerns about running out of credits or unexpected bills when applications grow. The platform includes a rich dashboard for managing numbers and messages, plus SDKs and documentation that enable production workloads to be deployed in under 30 seconds.
Target Audience
Primary customers are software developers and businesses of all sizes, from hobbyists and startups to Fortune 500 companies, who need reliable, scalable customer communication capabilities across multiple channels.
Features
- Unified API for SMS, MMS, WhatsApp, iMessage, and email communications
- Unlimited sending plans at every tier, including leased numbers with unlimited inbound and outbound messaging
- Proprietary technology that removes A2P 10DLC regulatory compliance burden for US text messaging
- Managed SMS OTP verification tools included for free, eliminating the need to build custom verification systems
- Global delivery to over 180 countries with sub-10-second delivery times
- Simple pricing with no carrier-specific fees, international surcharges, or hidden costs
- Free tier offering 500 SMS and 100 MMS per month without requiring a credit card