Chert

Chert is a stable iMessage infrastructure and API platform built for product, growth, and go-to-market teams that need to reach people at scale without losing the personal touch. Instead of juggling disconnected tools, your team can rely on one dependable foundation for messaging at volume.

With Chert, businesses can build and deploy conversational iMessage AI agents for use cases like customer service, inbound lead capture, onboarding, and cold outbound messaging, making every outreach feel timely and personal on the channel people already use every day.

The platform operates directly over Apple's iMessage protocol, delivering authentic blue-bubble message threads that support read receipts, live delivery states, group chats, typing indicators, tapbacks, and media attachments, so your messages carry the credibility of real iMessage conversations.

When recipients are off-platform, Chert keeps the conversation going with automated SMS and RCS fallbacks, ensuring no message is ever lost. It also integrates with major CRMs like Salesforce, HubSpot, and Close, natively syncing conversation histories so your team always has full context at their fingertips.